Hi Dev Team,

I am using infinispan 8.2.4 standalone hotrod server and i am facing "java.lang.OutOfMemoryError: Java heap space"  issue when putting or retrieving the data into cache.

In below two ways i have loaded the data into local cache.

Case 1 : (Data Loading is taking more time, But there is no issue with "OutOfMemoryError: Java heap space")

In this case I am storing the index into a different dedicated infinispan cache by using the below tag ,

            <property name="default.directory_provider">Infinispan</property>

I have observed that it is taking much time to load the data into cache , but in this case i am not facing Java Out of memory heap space issue during data putting or retrieving.

Below is local cache configuration,

<local-cache name="MERCHANT_STORE_DETAILS" start="EAGER">

            <locking acquire-timeout="30000" concurrency-level="1000" striping="false"/>
            <transaction mode="NONE"/>
            <eviction strategy="NONE"/>
            <file-store path="/MRSD/data" purge="false" passivation="false" preload="true"/>
            <indexing index="LOCAL">
                            <property name="default.indexmanager">org.infinispan.query.indexmanager.InfinispanIndexManager</property>
                            <property name="default.directory_provider">Infinispan</property>
                            <property name="default.metadata_cachename">MRSD-INDEX_META_DATA</property>
                            <property name="default.data_cachename">MRSD-INDEX_DATA</property>
                           <property name="default.locking_cachename">MRSD-INDEX_LOCKING</property>
            </indexing>
</local-cache>
<local-cache name="MRSD-INDEX_META_DATA" start="EAGER">
             <indexing index="NONE"/>
            <file-store path="/MRSD/index/indexMetadata" shared="false" purge="false" passivation="false" preload="true" fetch-state="true" read-only="false"/>
 </local-cache>
 <local-cache name="MRSD-INDEX_DATA" start="EAGER">
          <indexing index="NONE"/>
          <file-store path="MRSD/index/indexData" shared="false" purge="false" passivation="false" preload="true" fetch-state="true" read-only="false"/>
</local-cache>
<local-cache name="MRSD-INDEX_LOCKING" start="EAGER">
          <indexing index="NONE"/>
          <file-store path="MRSD/index/indexLocking" shared="false" purge="false" passivation="false" preload="true" fetch-state="true" read-only="false"/>
</local-cache>

Time Taken To Load Data: 3 Min 13 Sec

Number of Records : 45024

Case 2 : (Data Loading is very quick, But issue with "OutOfMemoryError: Java heap space")

In this case I am storing the index into memory by using the below tag ,

<property name="default.directory_provider">ram</property>

I have observed that, data has loaded into cache with in some seconds for same number of records that mentioned in Case 1,

But in this case when i am trying the store the same number of records(45024) multiple times and retrieving the data in same duration , It is throwing OutOfMemoryError: Java heap space in infinispan-server-8.2.4.Final/standalone/configuration/server.log.

Below is local cache configuration,

<local-cache name="MERCHANT_STORE_DETAILS" start="EAGER">
            <locking acquire-timeout="30000" concurrency-level="1000" striping="false"/>
                    <transaction mode="NONE"/>
                   <eviction strategy="NONE"/>
                    <indexing index="LOCAL">
                            <property name="default.indexmanager">near-real-time</property>
                            <property name="default.directory_provider">ram</property>
            </indexing>
</local-cache>

Time Taken To Load Data: 32 Sec

Number of Records : 45024

Exception In Details

2017-01-09 06:38:31,777 ERROR [stderr] (HotRod-externalServerHandler-1-88) Exception in thread "HotRod-externalServerHandler-1-88" java.lang.OutOfMemoryError: Java heap space
2017-01-09 06:39:18,706 ERROR [org.hibernate.search.exception.impl.LogErrorHandler] (Lucene Merge Thread #7869 for index org.infinispan.query.remote.impl.indexing.ProtobufValueWrapper) HSEARCH000058: HSEARCH000118: Exception during index Merge operation: org.apache.lucene.index.MergePolicy$MergeException: java.lang.OutOfMemoryError: Java heap space
        at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:668)
        at org.hibernate.search.backend.impl.lucene.overrides.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:42)
        at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:648)
Caused by: java.lang.OutOfMemoryError: Java heap space

2017-01-09 06:41:23,919 ERROR [stderr] (HotRod-externalServerHandler-1-88)      at org.antlr.runtime.Lexer.emit(Lexer.java:160)
2017-01-09 06:36:54,872 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) WFLYCTL0013: Operation ("read-children-resources") failed - address: ([]): java.lang.OutOfMemoryError: Java heap space
        at java.util.HashMap.resize(HashMap.java:703)
        at java.util.HashMap.putVal(HashMap.java:628)
        at java.util.HashMap.put(HashMap.java:611)
        at org.jboss.as.controller.OperationContextImpl$AuthorizationResponseImpl.addResourceResult(OperationContextImpl.java:2356)
        at org.jboss.as.controller.OperationContextImpl$AuthorizationResponseImpl.access$700(OperationContextImpl.java:2328)
        at org.jboss.as.controller.OperationContextImpl.getBasicAuthorizationResponse(OperationContextImpl.java:1764)
        at org.jboss.as.controller.OperationContextImpl.authorize(OperationContextImpl.java:1659)
        at org.jboss.as.controller.OperationContextImpl.authorize(OperationContextImpl.java:1618)
        at org.jboss.as.controller.OperationContextImpl.getResourceRegistration(OperationContextImpl.java:567)
        at org.jboss.as.controller.operations.global.ReadChildrenResourcesHandler.execute(ReadChildrenResourcesHandler.java:94)
        at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:890)
        at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:659)
        at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)
        at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1344)
        at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:392)
        at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:204)
        at org.jboss.as.controller.ModelControllerImpl$3.execute(ModelControllerImpl.java:659)
        at org.jboss.as.controller.ModelControllerImpl$3.execute(ModelControllerImpl.java:649)
        at org.jboss.as.server.deployment.scanner.DefaultDeploymentOperations.getDeploymentsStatus(DefaultDeploymentOperations.java:76)
        at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$ScanContext.<init>(FileSystemDeploymentService.java:1614)
        at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$ScanContext.<init>(FileSystemDeploymentService.java:1563)
        at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:568)
        at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:489)
        at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$DeploymentScanRunnable.run(FileSystemDeploymentService.java:250)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        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)


2017-01-09 06:38:39,564 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (HotRod-externalServerHandler-1-107) ISPN000136: Error executing command PutKeyValueCommand, writing keys [[B0x4a1b313031323331..[29]]: java.lang.OutOfMemoryError: Java heap space
        at java.util.ResourceBundle.putBundleInCache(ResourceBundle.java:1694)
        at java.util.ResourceBundle.findBundle(ResourceBundle.java:1471)
        at java.util.ResourceBundle.findBundle(ResourceBundle.java:1419)
        at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1361)
        at java.util.ResourceBundle.getBundle(ResourceBundle.java:890)
        at sun.util.resources.LocaleData$1.run(LocaleData.java:164)
        at sun.util.resources.LocaleData$1.run(LocaleData.java:160)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.util.resources.LocaleData.getBundle(LocaleData.java:160)
        at sun.util.resources.LocaleData.getNumberFormatData(LocaleData.java:156)
        at sun.util.locale.provider.LocaleResources.getNumberPatterns(LocaleResources.java:439)
        at sun.util.locale.provider.NumberFormatProviderImpl.getInstance(NumberFormatProviderImpl.java:177)
        at sun.util.locale.provider.NumberFormatProviderImpl.getNumberInstance(NumberFormatProviderImpl.java:149)
        at java.text.NumberFormat.getInstance(NumberFormat.java:875)
        at java.text.NumberFormat.getInstance(NumberFormat.java:861)
        at java.text.NumberFormat.getNumberInstance(NumberFormat.java:458)
        at org.infinispan.commons.util.Util.prettyPrintTime(Util.java:353)
        at org.infinispan.util.concurrent.locks.impl.DefaultLockManager$KeyAwareExtendedLockPromise.lock(DefaultLockManager.java:238)
        at org.infinispan.interceptors.locking.AbstractLockingInterceptor.lockAndRecord(AbstractLockingInterceptor.java:193)
        at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitNonTxDataWriteCommand(AbstractLockingInterceptor.java:98)
        at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.visitDataWriteCommand(NonTransactionalLockingInterceptor.java:41)
        at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitPutKeyValueCommand(AbstractLockingInterceptor.java:65)
        at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:78)
        at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99)
        at org.infinispan.interceptors.CacheMgmtInterceptor.updateStoreStatistics(CacheMgmtInterceptor.java:191)
        at org.infinispan.interceptors.CacheMgmtInterceptor.visitPutKeyValueCommand(CacheMgmtInterceptor.java:177)
        at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:78)
        at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99)
        at org.infinispan.interceptors.compat.BaseTypeConverterInterceptor.visitPutKeyValueCommand(BaseTypeConverterInterceptor.java:84)
        at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:78)
        at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99)
        at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:114)


Could any one please help me here to fix the "OutOfMemoryError: Java heap space" issue for Case 2.

Please let me know if you need more information on this.

Thanks in advance.

--

________________________________________________________________________________________________________________________________________________________________

Thanks and Regards,

Sridhar Jena, Sr. Techincal Lead, Products

+91 - 20 - 27655062 | +91 - 9226345267 | sjena345 | www.aurusinc.com
Plot G-2, Sector 26, Pradhikaran, Pune, Maharashtra-411044

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