[JBoss JIRA] Created: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
6:06 p.m.
Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools
AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://jira.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
com.jpmc.tss.admincenter.framework.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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6:08 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://jira.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plugin...
]
Anatoly Polinsky commented on JBRULES-2794:
-------------------------------------------
each thread is a separate process: e.g. starts / persists / resumes, etc..
/Anatoly
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://jira.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core
Original Estimate: 1 day
Remaining Estimate: 1 day
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
com.jpmc.tss.admincenter.framework.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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9:10 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://jira.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plugin...
]
Anatoly Polinsky updated JBRULES-2794:
--------------------------------------
Labels: drools-core drools-flow (was: drools-core)
Description:
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
was:
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
com.jpmc.tss.admincenter.framework.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://jira.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
9:16 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://jira.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plugin...
]
Anatoly Polinsky updated JBRULES-2794:
--------------------------------------
Description:
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
was:
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often. This is not
observed at all when running with e.g. 50 threads.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
just got this exception when working with 50 threads, which tells me that the more threads
I go, the better chance to get the race condition within the
"HashTableIterator".
So it seems that either "AbstractHashTable$HashTableIterator" needs to be made
Thread Safe, or whoever is calling it ( look at the stack trace above ) should be made
Thread Safe.
/Anatoly
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://jira.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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3:11 p.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://jira.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plugin...
]
Anatoly Polinsky updated JBRULES-2794:
--------------------------------------
Attachment: AbstractHashTable-thread_localing_a_table_row_.patch
problem happens here:
// if no entry keep skipping rows until we come to the end, or find one that
is populated
while ( this.entry == null && ++this.row < this.length ){
this.entry = this.table[this.row];
}
race condition changes "this.row" while more than one thread get to the
"while" body.
Attaching a patch that solves this.
Having a multi-purposed class as static ( HashTableIterator ) with shared state is just
not a good idea, since it is NOT thread safe.
/Anatoly
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://jira.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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5:10 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://issues.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plug...
]
Mark Proctor commented on JBRULES-2794:
---------------------------------------
The patch fixes the symptom and not the cause. We need to fix at the root of the problem,
rather than the tip. In general the WM should lock when first called, there is a Reentrant
lock object.
The problem here is an WorkingMemoryReteAssertAction bypasses calling that lock, it's
effectively an internal action. Normally this is ok, as the action queue is evaluated by
the calling thread which has already gone through the lock:
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
However in your example we also have WorkingMemoryReteAssertAction being executed
directly by a scheduler, which has not gone through the wm lock object:
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
And it is this that is causing the problem. The answer is to make sure that scheduled
tasks are wrapped by an adapter that first calls the wm lock. However first I'd like
to know what you are doing that is causing a a scheduled action. My guess is it's
either a rule timer or possibly some CEP based rule on tempoeral operators or sliding
window. Please let me know, so I can be sure I haven't overlocked something and I can
then ensure that those aspects safely schedule actions.
Mark
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://issues.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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1:53 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://issues.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plug...
]
Mark Proctor commented on JBRULES-2794:
---------------------------------------
Any news?
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://issues.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
--
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3:54 p.m.
New subject: [JBoss JIRA] (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://issues.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plug...
]
Tim Griffith commented on JBRULES-2794:
---------------------------------------
Hi Mark,
we are seeing the same as the above with jBPM 5.2 [JRules R5.3.1] execution logic for us
is as follows:
1. build a KnowledgeBase (done at application start)
2. within a threadpool (Spring JMS container with 5 threads):
a. on request; build a statefulSession from the KnowledgeBase
b. register the workItemHandlers and processEventListeners
b. execute ksession.startProcess
we are getting *very* intermittent failures with the ArrayIndexOutOfBounds in the
AbstractHashTable as commented in this bug. We are working to try and build a
deterministic, localized testcase which we can upload... however this is not likely to be
within the week.
We were surprised that we were hitting this issue because we were under the impression
that, given the session being localized to the thread, it would not be possible for
cross-thread contamination.
From static analysis of the code - it appears that the issue, as per
your comment with the straight JRules case, is caused 'at a higher level' -
following through the stack the issue appears to be:
a) StatefulSessions by default
'keepReference' with the AbstractRuleBase [ see
ReteooRuleBase.newStatefulSession(...):350 and :407 (in reference to
drools-core-5.3.1.Final)
b) PatternBuilder.attachObjectTypeNode(...) gets the full set of sessions back (:244) and
iterates over them under ObjectTypeNode.attach(...):365
c) the EntryPointNode.updateSink(...): method appears to take no further locking - thus it
is possible for all Threads to interferre with each other doing this process.
We are attempting to avoid the issue by providing the SessionConfiguration to the
KnowledgeBase.newStatefulKnowledgeSession(...) explicitly, having set the keepReference to
*false*
Our exception trace is as follows:
java.lang.RuntimeException: A Generic Exception Message
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:298)
at anon.XmlMessageProcessor.processMessage(XmlMessageProcessor.java:35)
at anon.JmsTextMessageListener.onMessage(JmsTextMessageListener.java:39)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:440)
at
org.springframework.jms.listener.SimpleMessageListenerContainer.processMessage(SimpleMessageListenerContainer.java:340)
at
org.springframework.jms.listener.SimpleMessageListenerContainer$1$1.run(SimpleMessageListenerContainer.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1e125710
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:978)
at
org.drools.impl.StatefulKnowledgeSessionImpl.executeQueuedActions(StatefulKnowledgeSessionImpl.java:854)
at
org.jbpm.process.instance.ProcessRuntimeImpl.createProcessInstance(ProcessRuntimeImpl.java:148)
at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:135)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at
com.barcap.esit.motif.bpm.process.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:252)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 16
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:316)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:422)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:373)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:268)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:99)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:71)
at org.drools.reteoo.Rete.assertObject(Rete.java:105)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:284)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:404)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:976)
... 17 more
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://issues.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
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3:54 p.m.
New subject: [JBoss JIRA] (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://issues.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plug...
]
Tim Griffith edited comment on JBRULES-2794 at 9/27/12 4:53 PM:
----------------------------------------------------------------
Hi Mark,
we are seeing the same as the above with jBPM 5.2 [JRules R5.3.1] execution logic for us
is as follows:
1. build a KnowledgeBase (done at application start)
2. within a threadpool (Spring JMS container with 5 threads):
a. on request; build a statefulSession from the KnowledgeBase
b. register the workItemHandlers and processEventListeners
c. execute ksession.startProcess
we are getting *very* intermittent failures with the ArrayIndexOutOfBounds in the
AbstractHashTable as commented in this bug. We are working to try and build a
deterministic, localized testcase which we can upload... however this is not likely to be
within the week.
We were surprised that we were hitting this issue because we were under the impression
that, given the session being localized to the thread, it would not be possible for
cross-thread contamination.
From static analysis of the code - it appears that the issue, as per
your comment with the straight JRules case, is caused 'at a higher level' -
following through the stack the issue appears to be:
a) StatefulSessions by default
'keepReference' with the AbstractRuleBase [ see
ReteooRuleBase.newStatefulSession(...):350 and :407 (in reference to
drools-core-5.3.1.Final)
b) PatternBuilder.attachObjectTypeNode(...) gets the full set of sessions back (:244) and
iterates over them under ObjectTypeNode.attach(...):365
c) the EntryPointNode.updateSink(...): method appears to take no further locking - thus it
is possible for all Threads to interferre with each other doing this process.
We are attempting to avoid the issue by providing the SessionConfiguration to the
KnowledgeBase.newStatefulKnowledgeSession(...) explicitly, having set the keepReference to
*false*
Our exception trace is as follows:
java.lang.RuntimeException: A Generic Exception Message
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:298)
at anon.XmlMessageProcessor.processMessage(XmlMessageProcessor.java:35)
at anon.JmsTextMessageListener.onMessage(JmsTextMessageListener.java:39)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:440)
at
org.springframework.jms.listener.SimpleMessageListenerContainer.processMessage(SimpleMessageListenerContainer.java:340)
at
org.springframework.jms.listener.SimpleMessageListenerContainer$1$1.run(SimpleMessageListenerContainer.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1e125710
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:978)
at
org.drools.impl.StatefulKnowledgeSessionImpl.executeQueuedActions(StatefulKnowledgeSessionImpl.java:854)
at
org.jbpm.process.instance.ProcessRuntimeImpl.createProcessInstance(ProcessRuntimeImpl.java:148)
at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:135)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at
com.barcap.esit.motif.bpm.process.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:252)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 16
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:316)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:422)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:373)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:268)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:99)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:71)
at org.drools.reteoo.Rete.assertObject(Rete.java:105)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:284)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:404)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:976)
... 17 more
was (Author: tim.griffith):
Hi Mark,
we are seeing the same as the above with jBPM 5.2 [JRules R5.3.1] execution logic for us
is as follows:
1. build a KnowledgeBase (done at application start)
2. within a threadpool (Spring JMS container with 5 threads):
a. on request; build a statefulSession from the KnowledgeBase
b. register the workItemHandlers and processEventListeners
b. execute ksession.startProcess
we are getting *very* intermittent failures with the ArrayIndexOutOfBounds in the
AbstractHashTable as commented in this bug. We are working to try and build a
deterministic, localized testcase which we can upload... however this is not likely to be
within the week.
We were surprised that we were hitting this issue because we were under the impression
that, given the session being localized to the thread, it would not be possible for
cross-thread contamination.
From static analysis of the code - it appears that the issue, as per
your comment with the straight JRules case, is caused 'at a higher level' -
following through the stack the issue appears to be:
a) StatefulSessions by default
'keepReference' with the AbstractRuleBase [ see
ReteooRuleBase.newStatefulSession(...):350 and :407 (in reference to
drools-core-5.3.1.Final)
b) PatternBuilder.attachObjectTypeNode(...) gets the full set of sessions back (:244) and
iterates over them under ObjectTypeNode.attach(...):365
c) the EntryPointNode.updateSink(...): method appears to take no further locking - thus it
is possible for all Threads to interferre with each other doing this process.
We are attempting to avoid the issue by providing the SessionConfiguration to the
KnowledgeBase.newStatefulKnowledgeSession(...) explicitly, having set the keepReference to
*false*
Our exception trace is as follows:
java.lang.RuntimeException: A Generic Exception Message
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:298)
at anon.XmlMessageProcessor.processMessage(XmlMessageProcessor.java:35)
at anon.JmsTextMessageListener.onMessage(JmsTextMessageListener.java:39)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:440)
at
org.springframework.jms.listener.SimpleMessageListenerContainer.processMessage(SimpleMessageListenerContainer.java:340)
at
org.springframework.jms.listener.SimpleMessageListenerContainer$1$1.run(SimpleMessageListenerContainer.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1e125710
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:978)
at
org.drools.impl.StatefulKnowledgeSessionImpl.executeQueuedActions(StatefulKnowledgeSessionImpl.java:854)
at
org.jbpm.process.instance.ProcessRuntimeImpl.createProcessInstance(ProcessRuntimeImpl.java:148)
at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:135)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at
com.barcap.esit.motif.bpm.process.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:252)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 16
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:316)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:422)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:373)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:268)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:99)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:71)
at org.drools.reteoo.Rete.assertObject(Rete.java:105)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:284)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:404)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:976)
... 17 more
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://issues.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
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3:58 p.m.
New subject: [JBoss JIRA] (JBRULES-2794) Running More Than 100 Threads Results in ArrayIndexOutOfBoundsException from Drools AbstractHashTable
[
https://issues.jboss.org/browse/JBRULES-2794?page=com.atlassian.jira.plug...
]
Tim Griffith edited comment on JBRULES-2794 at 9/27/12 4:56 PM:
----------------------------------------------------------------
Hi Mark,
we are seeing the same as the above with jBPM 5.2 [JRules R5.3.1] execution logic for us
is as follows:
1. build a KnowledgeBase (done at application start)
2. within a threadpool (Spring JMS container with 5 threads):
a. on request; build a statefulSession from the KnowledgeBase
b. register the workItemHandlers and processEventListeners
c. execute ksession.startProcess
we are getting *very* intermittent failures with the ArrayIndexOutOfBounds in the
AbstractHashTable as commented in this bug. We are working to try and build a
deterministic, localized testcase which we can upload... however this is not likely to be
within the week.
We were surprised that we were hitting this issue because we were under the impression
that, given the session being localized to the thread, it would not be possible for
cross-thread contamination.
From static analysis of the code - it appears that the issue, as per
your comment with the straight JRules case, is caused 'at a higher level' -
following through the stack the issue appears to be:
a) StatefulSessions by default
'keepReference' with the AbstractRuleBase [ see
ReteooRuleBase.newStatefulSession(...):350 and :407 (in reference to
drools-core-5.3.1.Final)
b) PatternBuilder.attachObjectTypeNode(...) gets the full set of sessions back (:244) and
iterates over them under ObjectTypeNode.attach(...):365
c) the EntryPointNode.updateSink(...): method appears to take no further locking - thus it
is possible for all Threads to interferre with each other doing this process.
We are attempting to avoid the issue by providing the SessionConfiguration to the
KnowledgeBase.newStatefulKnowledgeSession(...) explicitly, having set the keepReference to
*false*
Our exception trace is as follows:
java.lang.RuntimeException: A Generic Exception Message
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:298)
at anon.XmlMessageProcessor.processMessage(XmlMessageProcessor.java:35)
at anon.JmsTextMessageListener.onMessage(JmsTextMessageListener.java:39)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:440)
at
org.springframework.jms.listener.SimpleMessageListenerContainer.processMessage(SimpleMessageListenerContainer.java:340)
at
org.springframework.jms.listener.SimpleMessageListenerContainer$1$1.run(SimpleMessageListenerContainer.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1e125710
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:978)
at
org.drools.impl.StatefulKnowledgeSessionImpl.executeQueuedActions(StatefulKnowledgeSessionImpl.java:854)
at
org.jbpm.process.instance.ProcessRuntimeImpl.createProcessInstance(ProcessRuntimeImpl.java:148)
at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:135)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:252)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 16
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:316)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:422)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:373)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:268)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:99)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:71)
at org.drools.reteoo.Rete.assertObject(Rete.java:105)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:284)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:404)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:976)
... 17 more
was (Author: tim.griffith):
Hi Mark,
we are seeing the same as the above with jBPM 5.2 [JRules R5.3.1] execution logic for us
is as follows:
1. build a KnowledgeBase (done at application start)
2. within a threadpool (Spring JMS container with 5 threads):
a. on request; build a statefulSession from the KnowledgeBase
b. register the workItemHandlers and processEventListeners
c. execute ksession.startProcess
we are getting *very* intermittent failures with the ArrayIndexOutOfBounds in the
AbstractHashTable as commented in this bug. We are working to try and build a
deterministic, localized testcase which we can upload... however this is not likely to be
within the week.
We were surprised that we were hitting this issue because we were under the impression
that, given the session being localized to the thread, it would not be possible for
cross-thread contamination.
From static analysis of the code - it appears that the issue, as per
your comment with the straight JRules case, is caused 'at a higher level' -
following through the stack the issue appears to be:
a) StatefulSessions by default
'keepReference' with the AbstractRuleBase [ see
ReteooRuleBase.newStatefulSession(...):350 and :407 (in reference to
drools-core-5.3.1.Final)
b) PatternBuilder.attachObjectTypeNode(...) gets the full set of sessions back (:244) and
iterates over them under ObjectTypeNode.attach(...):365
c) the EntryPointNode.updateSink(...): method appears to take no further locking - thus it
is possible for all Threads to interferre with each other doing this process.
We are attempting to avoid the issue by providing the SessionConfiguration to the
KnowledgeBase.newStatefulKnowledgeSession(...) explicitly, having set the keepReference to
*false*
Our exception trace is as follows:
java.lang.RuntimeException: A Generic Exception Message
at anon.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:298)
at anon.XmlMessageProcessor.processMessage(XmlMessageProcessor.java:35)
at anon.JmsTextMessageListener.onMessage(JmsTextMessageListener.java:39)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:440)
at
org.springframework.jms.listener.SimpleMessageListenerContainer.processMessage(SimpleMessageListenerContainer.java:340)
at
org.springframework.jms.listener.SimpleMessageListenerContainer$1$1.run(SimpleMessageListenerContainer.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1e125710
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:978)
at
org.drools.impl.StatefulKnowledgeSessionImpl.executeQueuedActions(StatefulKnowledgeSessionImpl.java:854)
at
org.jbpm.process.instance.ProcessRuntimeImpl.createProcessInstance(ProcessRuntimeImpl.java:148)
at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:135)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at
com.barcap.esit.motif.bpm.process.JBpmProcessExecutor.executeProcess(JBpmProcessExecutor.java:252)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 16
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:316)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:422)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:373)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:268)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:99)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:71)
at org.drools.reteoo.Rete.assertObject(Rete.java:105)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:284)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:404)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:976)
... 17 more
Running More Than 100 Threads Results in
ArrayIndexOutOfBoundsException from Drools AbstractHashTable
-----------------------------------------------------------------------------------------------------
Key: JBRULES-2794
URL: https://issues.jboss.org/browse/JBRULES-2794
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: Ubuntu, Intellij / Windows XP, Eclipse
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
Labels: drools-core, drools-flow
Attachments: AbstractHashTable-thread_localing_a_table_row_.patch
Original Estimate: 1 day
Remaining Estimate: 1 day
Effected: Drools Flow and Drools Core
--------------------------------------------------------
Unfortunately it is not a consistent behaviour, but happens quite often.
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected
exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1102fab
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at
org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at
org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at
org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:18)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at
org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at
org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
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4483
days inactive
5165
days old
9 comments
3 participants
participants (3)
-
Anatoly Polinsky (JIRA) -
Mark Proctor (JIRA)
-
Tim Griffith (JIRA)