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Question

 Hemant Kumar (HemantK9)
HCL Technologies

HCL Technologies
IN
HemantK9 Member since 2018 6 posts
HCL Technologies
Posted: Oct 18, 2019
Last activity: Oct 18, 2019
Posted: 18 Oct 2019 1:42 EDT
Last activity: 18 Oct 2019 7:11 EDT
Closed

Thread dump during performance testing

Hi Team,

During performance testing, I am below thread dumps in Pega logs. Can you please help in identifying the exact reason about why it is happening? Please find below short snippet on thread dump as it is of 5000 line.For more info please find attached file

Thanks for help

2019-10-16 20:53:58,972 [ WebContainer : 17] [ ] [ ] [ ] (.timers.EnvironmentDiagnostics) INFO pega.saifg.rbc.com| Proprietary information hidden - --- Thread Dump Starts ---

Full Java thread dump with locks info

"P=817818:O=0:CT" Id=1 in TIMED_WAITING (running in native)

BlockedCount : 10, BlockedTime : -1, WaitedCount : 319, WaitedTime : -1

at java.lang.Thread.sleep(Native Method)

at java.lang.Thread.sleep(Thread.java:941)

at com.ibm.ws.runtime.WsServerImpl.main(WsServerImpl.java:715)

at com.ibm.ws.runtime.WsServer.main(WsServer.java:59)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)

at java.lang.reflect.Method.invoke(Method.java:508)

at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:234)

at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:96)

at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:77)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

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Hi Team,

During performance testing, I am below thread dumps in Pega logs. Can you please help in identifying the exact reason about why it is happening? Please find below short snippet on thread dump as it is of 5000 line.For more info please find attached file

Thanks for help

2019-10-16 20:53:58,972 [ WebContainer : 17] [ ] [ ] [ ] (.timers.EnvironmentDiagnostics) INFO pega.saifg.rbc.com| Proprietary information hidden - --- Thread Dump Starts ---

Full Java thread dump with locks info

"P=817818:O=0:CT" Id=1 in TIMED_WAITING (running in native)

BlockedCount : 10, BlockedTime : -1, WaitedCount : 319, WaitedTime : -1

at java.lang.Thread.sleep(Native Method)

at java.lang.Thread.sleep(Thread.java:941)

at com.ibm.ws.runtime.WsServerImpl.main(WsServerImpl.java:715)

at com.ibm.ws.runtime.WsServer.main(WsServer.java:59)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)

at java.lang.reflect.Method.invoke(Method.java:508)

at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:234)

at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:96)

at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:77)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)

at java.lang.reflect.Method.invoke(Method.java:508)

at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)

at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)

at java.lang.reflect.Method.invoke(Method.java:508)

at org.eclipse.core.launcher.Main.invokeFramework(Main.java:340)

at org.eclipse.core.launcher.Main.basicRun(Main.java:282)

at org.eclipse.core.launcher.Main.run(Main.java:981)

at com.ibm.wsspi.bootstrap.WSPreLauncher.launchEclipse(WSPreLauncher.java:406)

at com.ibm.wsspi.bootstrap.WSPreLauncher.main(WSPreLauncher.java:169)

Locked synchronizers: count = 0

"JIT Compilation Thread-0" Id=4 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-1 Suspended" Id=5 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-2 Suspended" Id=6 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-3 Suspended" Id=7 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-4 Suspended" Id=8 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-5 Suspended" Id=9 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Compilation Thread-6 Suspended" Id=10 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT Diagnostic Compilation Thread-7 Suspended" Id=11 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"JIT-SamplerThread" Id=12 in TIMED_WAITING

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"IProfiler" Id=13 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"Signal Dispatcher" Id=2 in RUNNABLE (running in native)

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

at com.ibm.misc.SignalDispatcher.waitForSignal(Native Method)

at com.ibm.misc.SignalDispatcher.run(SignalDispatcher.java:73)

Locked synchronizers: count = 0

"Concurrent Mark Helper" Id=14 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"GC Slave" Id=15 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

"GC Slave" Id=16 in RUNNABLE

BlockedCount : 0, BlockedTime : -1, WaitedCount : 0, WaitedTime : -1

Locked synchronizers: count = 0

***Moderator Edit-Vidyaranjan: Updated Platform Capability***


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System Administration

Posted: 5 years ago
Posted: 18 Oct 2019 2:52 EDT
Marc Lasserre (MarcLasserre_GCS)
PEGA
Technical Account Manager
Pegasystems Inc.
FR

Hello, 

I don't know if this extract would be sufficient. We might need the full log and also some details about your performance testing how it has been done. 

I would guess you have a Commit failing due to locking issues outside Pega but I'm not sure:

at com.ibm.db2.jcc.am.ki.executeBatch(ki.java:3045)
      - locked com.ibm.db2.jcc.t4.T4XAConnection@e8fe5b55
    at com.ibm.ws.rsadapter.jdbc.WSJdbcPreparedStatement.pmiExecuteBatch(WSJdbcPreparedStatement.java:1145)
    at com.ibm.ws.rsadapter.jdbc.WSJdbcStatement.executeBatch(WSJdbcStatement.java:855)

 

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