[JBoss JIRA] (ISPN-8741) ClusteredLockSplitBrainTest fails randomly
by William Burns (JIRA)
[ https://issues.jboss.org/browse/ISPN-8741?page=com.atlassian.jira.plugin.... ]
William Burns updated ISPN-8741:
--------------------------------
Status: Resolved (was: Pull Request Sent)
Fix Version/s: 9.2.0.Final
Resolution: Done
> ClusteredLockSplitBrainTest fails randomly
> ------------------------------------------
>
> Key: ISPN-8741
> URL: https://issues.jboss.org/browse/ISPN-8741
> Project: Infinispan
> Issue Type: Bug
> Components: Clustered Locks
> Affects Versions: 9.2.0.CR1
> Reporter: Katia Aresti
> Assignee: Katia Aresti
> Fix For: 9.2.0.Final
>
>
> When it works
> ====
> node A acquires the lock
> Split brain of [A] [B, C, D]
> Meanwhile, node B tries to acquire the lock, which is not free, so the request goes to the pending queue of B.
> With the view change listener, B calls unlock for A.
> The listener of B is notified that the lock is released.
> Retries for B
> It works, and A can't do anything else because it's not in the majority partition.
> When it fails
> ====
> node A acquires the lock
> Split brain of [A] [B, C, D]
> Meanwhile, node B tries to acquire the lock, which is not free, so the request goes to the pending queue of B.
> With the view change listener, B calls unlock for A.
> The listener of B is notified that the lock is released.
> Retries for B
> It fails, because it says that actually the lock is still with locked by A in node D, but it is available in Node B and C.
> Another unlock is retried for Node D, and this works, and still tries to unlock B and C, which fail because now thy are locked by B.
> This gets on the limbo and the request is expired by the scheduler.
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[JBoss JIRA] (ISPN-8180) Add key to WriteEntryView
by Galder Zamarreño (JIRA)
[ https://issues.jboss.org/browse/ISPN-8180?page=com.atlassian.jira.plugin.... ]
Galder Zamarreño updated ISPN-8180:
-----------------------------------
Status: Resolved (was: Pull Request Sent)
Resolution: Done
> Add key to WriteEntryView
> -------------------------
>
> Key: ISPN-8180
> URL: https://issues.jboss.org/browse/ISPN-8180
> Project: Infinispan
> Issue Type: Enhancement
> Components: Core
> Reporter: Radim Vansa
> Assignee: Radim Vansa
> Fix For: 9.2.0.Final
>
>
> WriteOnlyKeyCommand should be able to simulate ComputeIfAbsentCommand without the conditional part (dropping the condition during when this is added to modifications list) and the signature for that command's remapping function is {{Function<K, V>}}. Therefore, we need to add key() to the WriteEntryView. This comes with no performance costs as the key is always at hand, no need to load it from anywhere.
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[JBoss JIRA] (ISPN-8850) NPE in ConsistentHashV2IntegrationTest.cleanUp
by Tristan Tarrant (JIRA)
[ https://issues.jboss.org/browse/ISPN-8850?page=com.atlassian.jira.plugin.... ]
Tristan Tarrant updated ISPN-8850:
----------------------------------
Status: Resolved (was: Pull Request Sent)
Fix Version/s: 9.2.0.Final
Resolution: Done
> NPE in ConsistentHashV2IntegrationTest.cleanUp
> ----------------------------------------------
>
> Key: ISPN-8850
> URL: https://issues.jboss.org/browse/ISPN-8850
> Project: Infinispan
> Issue Type: Bug
> Components: Remote Protocols
> Affects Versions: 9.2.0.CR1
> Reporter: Adrian Nistor
> Assignee: Dan Berindei
> Fix For: 9.2.0.Final
>
> Attachments: infinispan-infinispan-client-hotrod.log
>
>
> {code}
> ERROR] Tests run: 3262, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 293.915 s <<< FAILURE! - in TestSuite
> [ERROR] cleanUp(org.infinispan.client.hotrod.ConsistentHashV2IntegrationTest) Time elapsed: 0.062 s <<< FAILURE!
> java.lang.NullPointerException
> at org.infinispan.client.hotrod.ConsistentHashV2IntegrationTest.cleanUp(ConsistentHashV2IntegrationTest.java:102)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
> at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:510)
> at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:211)
> at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:138)
> at org.testng.TestRunner.afterRun(TestRunner.java:1023)
> at org.testng.TestRunner.run(TestRunner.java:628)
> at org.testng.SuiteRunner.runTest(SuiteRunner.java:359)
> at org.testng.SuiteRunner.access$000(SuiteRunner.java:39)
> at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:393)
> at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> [INFO]
> [INFO] Results:
> [INFO]
> [ERROR] Failures:
> [ERROR] ConsistentHashV2IntegrationTest.cleanUp:102 NullPointer
> [INFO]
> [ERROR] Tests run: 3262, Failures: 1, Errors: 0, Skipped: 0
> {code}
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[JBoss JIRA] (ISPN-8863) Initial Infinispan subsystem cannot be created via CLI
by Tristan Tarrant (JIRA)
[ https://issues.jboss.org/browse/ISPN-8863?page=com.atlassian.jira.plugin.... ]
Tristan Tarrant updated ISPN-8863:
----------------------------------
Status: Resolved (was: Pull Request Sent)
Resolution: Done
> Initial Infinispan subsystem cannot be created via CLI
> ------------------------------------------------------
>
> Key: ISPN-8863
> URL: https://issues.jboss.org/browse/ISPN-8863
> Project: Infinispan
> Issue Type: Bug
> Components: Server
> Affects Versions: 9.2.0.CR3
> Reporter: Ryan Emerson
> Assignee: Ryan Emerson
> Fix For: 9.2.0.Final
>
> Attachments: no-ispn.xml
>
>
> If the infinispan server is created with a .xml file that does not contain a {code}<subsystem xmlns="urn:infinispan:server:core:9.2"><cache-container>...</cache-container></subsystem{code} entry, then it's not possible to initialise the subsystem via CLI DMR operations.
> Executing {code}/subsystem=datagrid-infinispan:add(){code} results in the following server error:
> {code}
> 16:46:18,701 INFO [org.jboss.as.clustering.infinispan] (management-handler-thread - 2) Activating Infinispan subsystem.
> 16:46:18,705 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 2) WFLYCTL0013: Operation ("add") failed - address: ([("subsystem" => "datagrid-infinispan")]): java.lang.IllegalStateException
> at org.jboss.as.server.AbstractDeploymentChainStep.execute(AbstractDeploymentChainStep.java:74)
> at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:980)
> at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:726)
> at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:450)
> at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1402)
> at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:418)
> at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:243)
> at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:263)
> at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:229)
> at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:243)
> at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.doExecute(ModelControllerClientOperationHandler.java:217)
> at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.access$400(ModelControllerClientOperationHandler.java:137)
> at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:161)
> at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:157)
> at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:287)
> at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:244)
> at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:254)
> at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:225)
> at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1.execute(ModelControllerClientOperationHandler.java:157)
> at org.jboss.as.protocol.mgmt.ManagementRequestContextImpl$1.doExecute(ManagementRequestContextImpl.java:70)
> at org.jboss.as.protocol.mgmt.ManagementRequestContextImpl$AsyncTaskRunner.run(ManagementRequestContextImpl.java:160)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> at org.jboss.threads.JBossThread.run(JBossThread.java:320)
> {code}
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[JBoss JIRA] (ISPN-8869) Infinispan Subsystem Code Cleanup
by Tristan Tarrant (JIRA)
[ https://issues.jboss.org/browse/ISPN-8869?page=com.atlassian.jira.plugin.... ]
Tristan Tarrant updated ISPN-8869:
----------------------------------
Status: Resolved (was: Pull Request Sent)
Resolution: Done
> Infinispan Subsystem Code Cleanup
> ---------------------------------
>
> Key: ISPN-8869
> URL: https://issues.jboss.org/browse/ISPN-8869
> Project: Infinispan
> Issue Type: Enhancement
> Components: Server
> Affects Versions: 9.2.0.CR3
> Reporter: Ryan Emerson
> Assignee: Ryan Emerson
> Fix For: 9.2.0.Final
>
>
> The infinispan server subsystem has been neglected for a while resulting in old java code, use of various deprecated jboss apis as well as numerous redundant method/variable declarations. While some of the deprecated apis are harder to replace than others, we should replace the ones that are easy wins sooner rather than later.
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[JBoss JIRA] (ISPN-8889) Data race in NonTxInvocationContext
by Radim Vansa (JIRA)
[ https://issues.jboss.org/browse/ISPN-8889?page=com.atlassian.jira.plugin.... ]
Radim Vansa commented on ISPN-8889:
-----------------------------------
Oops, and in case of exception handling this fix is not enough - ISPN-7889 (completely forgot about that).
> Data race in NonTxInvocationContext
> -----------------------------------
>
> Key: ISPN-8889
> URL: https://issues.jboss.org/browse/ISPN-8889
> Project: Infinispan
> Issue Type: Bug
> Components: Core
> Affects Versions: 9.2.0.CR2, 9.1.6.Final
> Environment: Java 8 (Oracle JDK 8), Solaris SPARC
> Reporter: Peter Levart
> Assignee: Radim Vansa
> Labels: data-race
> Attachments: DataRacer.java, DataRacer.java
>
>
> Got the following exceptions starting up an Infinispan node while joining the cluster:
> {noformat}
> 17:10:59.012 [remote-thread--p2-t8] ERROR org.infinispan.interceptors.impl.InvocationContextInterceptor - ISPN000136: Error executing command PutMapCommand, writing keys [11906696627, 11906696626, 11906696625, 11906696624, 11906696631, 11906696630, 11906696629, 11906696628...<9992 other elements>]
> java.lang.ClassCastException: java.util.HashMap$Node cannot be cast to java.util.HashMap$TreeNode
> at java.util.HashMap$TreeNode.moveRootToFront(HashMap.java:1832) ~[?:1.8.0_162]
> at java.util.HashMap$TreeNode.treeify(HashMap.java:1949) ~[?:1.8.0_162]
> at java.util.HashMap$TreeNode.split(HashMap.java:2175) ~[?:1.8.0_162]
> at java.util.HashMap.resize(HashMap.java:714) ~[?:1.8.0_162]
> at java.util.HashMap.putVal(HashMap.java:663) ~[?:1.8.0_162]
> at java.util.HashMap.put(HashMap.java:612) ~[?:1.8.0_162]
> at org.infinispan.context.impl.NonTxInvocationContext.putLookedUpEntry(NonTxInvocationContext.java:48) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.container.EntryFactoryImpl.wrapExternalEntry(EntryFactoryImpl.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.wrapRemoteEntry(BaseDistributionInterceptor.java:222) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.lambda$remoteGet$1(BaseDistributionInterceptor.java:192) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) ~[?:1.8.0_162]
> at org.infinispan.remoting.transport.AbstractRequest.complete(AbstractRequest.java:66) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.MultiTargetRequest.onResponse(MultiTargetRequest.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.StaggeredRequest.onResponse(StaggeredRequest.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.RequestRepository.addResponse(RequestRepository.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processResponse(JGroupsTransport.java:1302) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processMessage(JGroupsTransport.java:1205) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.access$200(JGroupsTransport.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport$ChannelCallbacks.receive(JGroupsTransport.java:1340) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.jgroups.JChannel.up(JChannel.java:819) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:893) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FRAG3.up(FRAG3.java:171) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.GMS.up(GMS.java:864) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:240) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1002) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:728) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:383) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:600) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:119) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:199) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:252) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.MERGE3.up(MERGE3.java:276) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.Discovery.up(Discovery.java:267) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.TP.passMessageUp(TP.java:1248) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.util.SubmitToThreadPool$SingleMessageHandler.run(SubmitToThreadPool.java:87) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> {noformat}
> Immediately suspected that plain HashMap is being modified from multiple threads without proper synchronization. But since I'm new to Infinispan, I can't know whether the usage of plain HashMap in NonTxInvocationContext is intentional and Infinispan code is relying on some external synchronization to be performed by other parts of system that calls NonTxInvocationContext.[lookupEntry|removeLookedUpEntry|putLookedUpEntry|getLookedUpEntries]. In any way, if this external synchronization is taking place, it has a bug and allows calling these methods concurrently without proper synchronization.
> I did some experiments to prove that and also to obtain stack traces of at least two of involved threads, but trivial things that I tried instrumenting those methods all involved some kind of synchronization and the symptom disappeared. I had to be extra smart to obtain the stack traces of two threads without inter-thread synchronization so that I could detect the data race. Here's how I instrumented NonTxInvocationContext code:
> {noformat}
> Index: core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java
> IDEA additional info:
> Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
> <+>UTF-8
> ===================================================================
> --- core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java (revision 6014e751c20daba1f00e23168281e02afb209905)
> +++ core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java (date 1519744397000)
> @@ -22,6 +22,7 @@
> private Set<Object> lockedKeys;
> private Object lockOwner;
>
> + private final DataRacer dataRacer = new DataRacer();
>
> public NonTxInvocationContext(int numEntries, Address origin) {
> super(origin);
> @@ -35,22 +36,26 @@
>
> @Override
> public CacheEntry lookupEntry(Object k) {
> + dataRacer.detect();
> return lookedUpEntries.get(k);
> }
>
> @Override
> public void removeLookedUpEntry(Object key) {
> + dataRacer.detectAndWrite();
> lookedUpEntries.remove(key);
> }
>
> @Override
> public void putLookedUpEntry(Object key, CacheEntry e) {
> + dataRacer.detectAndWrite();
> lookedUpEntries.put(key, e);
> }
>
> @Override
> @SuppressWarnings("unchecked")
> public Map<Object, CacheEntry> getLookedUpEntries() {
> + dataRacer.detect();
> return (Map<Object, CacheEntry>)
> (lookedUpEntries == null ?
> Collections.emptyMap() : lookedUpEntries);
> {noformat}
> Attached, you will find the DataRacer source. While running with such patched Infinispan, I got some of the following:
> {noformat}
> java.lang.IllegalThreadStateException: Thread[remote-thread--p2-t4,5,main]: data race detected with writer of state: 271f7814a414 - see suppressed for writer thread stack trace
> at org.infinispan.context.impl.DataRacer.detect(DataRacer.java:37) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.NonTxInvocationContext.lookupEntry(NonTxInvocationContext.java:39) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.addRemoteGet(NonTxDistributionInterceptor.java:405) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.handleRemoteReadWriteManyCommand(NonTxDistributionInterceptor.java:385) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.handleReadWriteManyCommand(NonTxDistributionInterceptor.java:303) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.visitPutMapCommand(NonTxDistributionInterceptor.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNextThenAccept(BaseAsyncInterceptor.java:98) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForManyEntriesCommand(EntryWrappingInterceptor.java:614) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.EntryWrappingInterceptor.visitPutMapCommand(EntryWrappingInterceptor.java:385) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.handleWriteManyCommand(NonTransactionalLockingInterceptor.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitPutMapCommand(AbstractLockingInterceptor.java:179) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.handleNonTxWriteCommand(StateTransferInterceptor.java:306) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.handleWriteCommand(StateTransferInterceptor.java:252) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.visitPutMapCommand(StateTransferInterceptor.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.CacheMgmtInterceptor.visitPutMapCommand(CacheMgmtInterceptor.java:154) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNextAndExceptionally(BaseAsyncInterceptor.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.InvocationContextInterceptor.visitCommand(InvocationContextInterceptor.java:90) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:56) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.handleDefault(DDAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.visitPutMapCommand(DDAsyncInterceptor.java:90) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.visitCommand(DDAsyncInterceptor.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.AsyncInterceptorChainImpl.invokeAsync(AsyncInterceptorChainImpl.java:234) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.remote.BaseRpcInvokingCommand.processVisitableCommandAsync(BaseRpcInvokingCommand.java:63) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.remote.SingleRpcCommand.invokeAsync(SingleRpcCommand.java:57) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BasePerCacheInboundInvocationHandler.invokeCommand(BasePerCacheInboundInvocationHandler.java:94) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.invoke(BaseBlockingRunnable.java:99) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.runAsync(BaseBlockingRunnable.java:71) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.run(BaseBlockingRunnable.java:40) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> Suppressed: org.infinispan.context.impl.DataRacer$StackTrace: Thread[jgroups-13,tbd2-40757,5,main], state: 271f7814a414
> at org.infinispan.context.impl.DataRacer.write(DataRacer.java:59) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.DataRacer.detectAndWrite(DataRacer.java:49) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.NonTxInvocationContext.putLookedUpEntry(NonTxInvocationContext.java:51) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.container.EntryFactoryImpl.wrapExternalEntry(EntryFactoryImpl.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.wrapRemoteEntry(BaseDistributionInterceptor.java:222) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.lambda$remoteGet$1(BaseDistributionInterceptor.java:192) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) ~[?:1.8.0_162]
> at org.infinispan.remoting.transport.AbstractRequest.complete(AbstractRequest.java:66) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.MultiTargetRequest.onResponse(MultiTargetRequest.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.StaggeredRequest.onResponse(StaggeredRequest.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.RequestRepository.addResponse(RequestRepository.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processResponse(JGroupsTransport.java:1302) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processMessage(JGroupsTransport.java:1205) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.access$200(JGroupsTransport.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport$ChannelCallbacks.receive(JGroupsTransport.java:1340) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.jgroups.JChannel.up(JChannel.java:819) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:893) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FRAG3.up(FRAG3.java:171) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.GMS.up(GMS.java:864) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:240) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1002) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:728) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:383) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:600) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:119) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:199) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:252) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.MERGE3.up(MERGE3.java:276) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.Discovery.up(Discovery.java:267) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.TP.passMessageUp(TP.java:1248) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.util.SubmitToThreadPool$SingleMessageHandler.run(SubmitToThreadPool.java:87) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> {noformat}
> So here you have it. Either using plain HashMap in NonTxInvocationContext is wrong and ConcurrentHashMap should be used instead or some external synchronization has a bug and is inadequate. I hope this helps to fix it.
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8 years, 1 month
[JBoss JIRA] (ISPN-8889) Data race in NonTxInvocationContext
by Radim Vansa (JIRA)
[ https://issues.jboss.org/browse/ISPN-8889?page=com.atlassian.jira.plugin.... ]
Radim Vansa commented on ISPN-8889:
-----------------------------------
I've updated the the branch with (hopefully) all the needed synchronizations, though I am not 100% satisfied with spreading the synchronization all over (maintenance-wise).
> Data race in NonTxInvocationContext
> -----------------------------------
>
> Key: ISPN-8889
> URL: https://issues.jboss.org/browse/ISPN-8889
> Project: Infinispan
> Issue Type: Bug
> Components: Core
> Affects Versions: 9.2.0.CR2, 9.1.6.Final
> Environment: Java 8 (Oracle JDK 8), Solaris SPARC
> Reporter: Peter Levart
> Assignee: Radim Vansa
> Labels: data-race
> Attachments: DataRacer.java, DataRacer.java
>
>
> Got the following exceptions starting up an Infinispan node while joining the cluster:
> {noformat}
> 17:10:59.012 [remote-thread--p2-t8] ERROR org.infinispan.interceptors.impl.InvocationContextInterceptor - ISPN000136: Error executing command PutMapCommand, writing keys [11906696627, 11906696626, 11906696625, 11906696624, 11906696631, 11906696630, 11906696629, 11906696628...<9992 other elements>]
> java.lang.ClassCastException: java.util.HashMap$Node cannot be cast to java.util.HashMap$TreeNode
> at java.util.HashMap$TreeNode.moveRootToFront(HashMap.java:1832) ~[?:1.8.0_162]
> at java.util.HashMap$TreeNode.treeify(HashMap.java:1949) ~[?:1.8.0_162]
> at java.util.HashMap$TreeNode.split(HashMap.java:2175) ~[?:1.8.0_162]
> at java.util.HashMap.resize(HashMap.java:714) ~[?:1.8.0_162]
> at java.util.HashMap.putVal(HashMap.java:663) ~[?:1.8.0_162]
> at java.util.HashMap.put(HashMap.java:612) ~[?:1.8.0_162]
> at org.infinispan.context.impl.NonTxInvocationContext.putLookedUpEntry(NonTxInvocationContext.java:48) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.container.EntryFactoryImpl.wrapExternalEntry(EntryFactoryImpl.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.wrapRemoteEntry(BaseDistributionInterceptor.java:222) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.lambda$remoteGet$1(BaseDistributionInterceptor.java:192) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) ~[?:1.8.0_162]
> at org.infinispan.remoting.transport.AbstractRequest.complete(AbstractRequest.java:66) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.MultiTargetRequest.onResponse(MultiTargetRequest.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.StaggeredRequest.onResponse(StaggeredRequest.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.RequestRepository.addResponse(RequestRepository.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processResponse(JGroupsTransport.java:1302) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processMessage(JGroupsTransport.java:1205) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.access$200(JGroupsTransport.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport$ChannelCallbacks.receive(JGroupsTransport.java:1340) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.jgroups.JChannel.up(JChannel.java:819) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:893) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FRAG3.up(FRAG3.java:171) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.GMS.up(GMS.java:864) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:240) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1002) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:728) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:383) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:600) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:119) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:199) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:252) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.MERGE3.up(MERGE3.java:276) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.Discovery.up(Discovery.java:267) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.TP.passMessageUp(TP.java:1248) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.util.SubmitToThreadPool$SingleMessageHandler.run(SubmitToThreadPool.java:87) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> {noformat}
> Immediately suspected that plain HashMap is being modified from multiple threads without proper synchronization. But since I'm new to Infinispan, I can't know whether the usage of plain HashMap in NonTxInvocationContext is intentional and Infinispan code is relying on some external synchronization to be performed by other parts of system that calls NonTxInvocationContext.[lookupEntry|removeLookedUpEntry|putLookedUpEntry|getLookedUpEntries]. In any way, if this external synchronization is taking place, it has a bug and allows calling these methods concurrently without proper synchronization.
> I did some experiments to prove that and also to obtain stack traces of at least two of involved threads, but trivial things that I tried instrumenting those methods all involved some kind of synchronization and the symptom disappeared. I had to be extra smart to obtain the stack traces of two threads without inter-thread synchronization so that I could detect the data race. Here's how I instrumented NonTxInvocationContext code:
> {noformat}
> Index: core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java
> IDEA additional info:
> Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
> <+>UTF-8
> ===================================================================
> --- core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java (revision 6014e751c20daba1f00e23168281e02afb209905)
> +++ core/src/main/java/org/infinispan/context/impl/NonTxInvocationContext.java (date 1519744397000)
> @@ -22,6 +22,7 @@
> private Set<Object> lockedKeys;
> private Object lockOwner;
>
> + private final DataRacer dataRacer = new DataRacer();
>
> public NonTxInvocationContext(int numEntries, Address origin) {
> super(origin);
> @@ -35,22 +36,26 @@
>
> @Override
> public CacheEntry lookupEntry(Object k) {
> + dataRacer.detect();
> return lookedUpEntries.get(k);
> }
>
> @Override
> public void removeLookedUpEntry(Object key) {
> + dataRacer.detectAndWrite();
> lookedUpEntries.remove(key);
> }
>
> @Override
> public void putLookedUpEntry(Object key, CacheEntry e) {
> + dataRacer.detectAndWrite();
> lookedUpEntries.put(key, e);
> }
>
> @Override
> @SuppressWarnings("unchecked")
> public Map<Object, CacheEntry> getLookedUpEntries() {
> + dataRacer.detect();
> return (Map<Object, CacheEntry>)
> (lookedUpEntries == null ?
> Collections.emptyMap() : lookedUpEntries);
> {noformat}
> Attached, you will find the DataRacer source. While running with such patched Infinispan, I got some of the following:
> {noformat}
> java.lang.IllegalThreadStateException: Thread[remote-thread--p2-t4,5,main]: data race detected with writer of state: 271f7814a414 - see suppressed for writer thread stack trace
> at org.infinispan.context.impl.DataRacer.detect(DataRacer.java:37) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.NonTxInvocationContext.lookupEntry(NonTxInvocationContext.java:39) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.addRemoteGet(NonTxDistributionInterceptor.java:405) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.handleRemoteReadWriteManyCommand(NonTxDistributionInterceptor.java:385) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.handleReadWriteManyCommand(NonTxDistributionInterceptor.java:303) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.visitPutMapCommand(NonTxDistributionInterceptor.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNextThenAccept(BaseAsyncInterceptor.java:98) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForManyEntriesCommand(EntryWrappingInterceptor.java:614) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.EntryWrappingInterceptor.visitPutMapCommand(EntryWrappingInterceptor.java:385) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.handleWriteManyCommand(NonTransactionalLockingInterceptor.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitPutMapCommand(AbstractLockingInterceptor.java:179) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.handleNonTxWriteCommand(StateTransferInterceptor.java:306) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.handleWriteCommand(StateTransferInterceptor.java:252) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.statetransfer.StateTransferInterceptor.visitPutMapCommand(StateTransferInterceptor.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.CacheMgmtInterceptor.visitPutMapCommand(CacheMgmtInterceptor.java:154) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNextAndExceptionally(BaseAsyncInterceptor.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.InvocationContextInterceptor.visitCommand(InvocationContextInterceptor.java:90) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:56) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.handleDefault(DDAsyncInterceptor.java:54) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.visitPutMapCommand(DDAsyncInterceptor.java:90) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.write.PutMapCommand.acceptVisitor(PutMapCommand.java:80) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.DDAsyncInterceptor.visitCommand(DDAsyncInterceptor.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.impl.AsyncInterceptorChainImpl.invokeAsync(AsyncInterceptorChainImpl.java:234) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.remote.BaseRpcInvokingCommand.processVisitableCommandAsync(BaseRpcInvokingCommand.java:63) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.commands.remote.SingleRpcCommand.invokeAsync(SingleRpcCommand.java:57) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BasePerCacheInboundInvocationHandler.invokeCommand(BasePerCacheInboundInvocationHandler.java:94) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.invoke(BaseBlockingRunnable.java:99) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.runAsync(BaseBlockingRunnable.java:71) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.run(BaseBlockingRunnable.java:40) [infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> Suppressed: org.infinispan.context.impl.DataRacer$StackTrace: Thread[jgroups-13,tbd2-40757,5,main], state: 271f7814a414
> at org.infinispan.context.impl.DataRacer.write(DataRacer.java:59) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.DataRacer.detectAndWrite(DataRacer.java:49) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.context.impl.NonTxInvocationContext.putLookedUpEntry(NonTxInvocationContext.java:51) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.container.EntryFactoryImpl.wrapExternalEntry(EntryFactoryImpl.java:143) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.wrapRemoteEntry(BaseDistributionInterceptor.java:222) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.lambda$remoteGet$1(BaseDistributionInterceptor.java:192) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_162]
> at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962) ~[?:1.8.0_162]
> at org.infinispan.remoting.transport.AbstractRequest.complete(AbstractRequest.java:66) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.MultiTargetRequest.onResponse(MultiTargetRequest.java:102) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.StaggeredRequest.onResponse(StaggeredRequest.java:50) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.impl.RequestRepository.addResponse(RequestRepository.java:53) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processResponse(JGroupsTransport.java:1302) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.processMessage(JGroupsTransport.java:1205) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport.access$200(JGroupsTransport.java:123) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.infinispan.remoting.transport.jgroups.JGroupsTransport$ChannelCallbacks.receive(JGroupsTransport.java:1340) ~[infinispan-core-9.2.0-SNAPSHOT.jar:9.2.0-SNAPSHOT]
> at org.jgroups.JChannel.up(JChannel.java:819) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:893) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FRAG3.up(FRAG3.java:171) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FlowControl.up(FlowControl.java:343) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.GMS.up(GMS.java:864) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:240) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1002) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:728) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:383) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:600) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:119) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:199) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:252) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.MERGE3.up(MERGE3.java:276) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.Discovery.up(Discovery.java:267) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.protocols.TP.passMessageUp(TP.java:1248) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at org.jgroups.util.SubmitToThreadPool$SingleMessageHandler.run(SubmitToThreadPool.java:87) ~[jgroups-4.0.10.Final.jar:4.0.10.Final]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
> {noformat}
> So here you have it. Either using plain HashMap in NonTxInvocationContext is wrong and ConcurrentHashMap should be used instead or some external synchronization has a bug and is inadequate. I hope this helps to fix it.
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