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1933204 - OutOfMemoryError due to Adapter Engine Performance Monitoring in PI

Symptom

  • Process Integration (PI) Java Server nodes are restarting due to OutOfMemoryError (OOM).
  • The following suspects are reported in the Eclipse Memory Analyzer tool (MAT).
    The thread com.sap.engine.core.thread.impl3.SingleThread @ 0x256caf9e8 Application [56] keeps local variables with total size <number of bytes (#%) bytes. The memory is accumulated in one instance of "java.lang.Object[]" loaded by "<system class loader>".
  • The stacktrace for this thread shows the following
    at java.util.Arrays.copyOf([Ljava/lang/Object;I)[Ljava/lang/Object; (Arrays.java:2734)
      at java.util.AbstractCollection.finishToArray([Ljava/lang/Object;Ljava/util/Iterator;)[Ljava/lang/Object; (AbstractCollection.java:198)
      at java.util.AbstractCollection.toArray()[Ljava/lang/Object; (AbstractCollection.java:126)
      at com.sap.aii.af.service.statistic.impl.XPIPerformanceStatisticAggregator.start()V (XPIPerformanceStatisticAggregator.java:120)
      at com.sap.aii.af.service.statistic.PerformanceMonitorManager.startAggregator()V (PerformanceMonitorManager.java:771)
      at com.sap.aii.af.service.statistic.ProfileScheduler.invoke()V (ProfileScheduler.java:317)
      at com.sap.aii.af.lib.scheduler.JobBroker$Worker.run()V (JobBroker.java:494)
      at com.sap.engine.core.thread.impl3.ActionObject.run()Ljava/lang/Object; (ActionObject.java:37)
      at java.security.AccessController.doPrivileged(Ljava/security/PrivilegedAction;Ljava/security/AccessControlContext;)Ljava/lang/Object; (Native Method)
      at com.sap.engine.core.thread.impl3.SingleThread.execute(Lcom/sap/engine/core/thread/ThreadContextImpl;)V (SingleThread.java:185)
      at com.sap.engine.core.thread.impl3.SingleThread.run()V (SingleThread.java:302)


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Environment

  • SAP NetWeaver 7.3
  • SAP enhancement package 1 for SAP NetWeaver 7.3
  • SAP NetWeaver 7.5

Product

SAP NetWeaver 7.3 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.3

Keywords

Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.40, PI 7.40, PO 7.40, Process Orchestration 7.50, PI 7.50, PO 7.50, NetWeaver, XI , XI, AEX, OOM, hprof, phd, NWA, Netweaver Administrator, OutOfMemoryError com.sap.aii.af.service.statistic.PerformanceDataCache, AsyncPerformanceAPIEventProcessor , KBA , BC-XI-IS-WKB , Runtime Workbench / Monitoring , BC-NWA-XPI , Process Integration (PI) Monitoring , Problem

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