Hi,

we are getting thread dumps where the activity "pzsetrequestorstateasdisconnected" is involved. Below is the stack trace if some body can help..

in WAITING on lock=java.util.concurrent.locks.ReentrantLock$NonfairSync@40636126 (running in native)
owned by TP_http : 23322 Id=198570
BlockedCount : 0, BlockedTime : -1, WaitedCount : 19, WaitedTime : -1
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:847)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:881)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1210)
at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:220)
at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:296)
at com.pega.pegarules.session.internal.presence.PresenceLifeCycleEventManager.updateSessiontoDisconnected(PresenceLifeCycleEventManager.java:130)
at com.pega.pegarules.session.internal.presence.PresenceServiceImpl.setCurrentRequestorStateAsDisconnected(PresenceServiceImpl.java:237)
at com.pegarules.generated.activity.ra_action_pzsetrequestorstateasdisconnected_bb1ea6c5c00e81502f172683d9416652.step1_circum0(ra_action_pzsetrequestorstateasdisconnected_bb1ea6c5c00e81502f172683d9416652.java:170)
at com.pegarules.generated.activity.ra_action_pzsetrequestorstateasdisconnected_bb1ea6c5c00e81502f172683d9416652.perform(ra_action_pzsetrequestorstateasdisconnected_bb1ea6c5c00e81502f172683d9416652.java:70)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3597)
at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10845)
at com.pegarules.generated.activity.ra_action_pyonbeforewindowclose_6e4556eb02e0b2f29ba0650d52c31657.step2_circum0(ra_action_pyonbeforewindowclose_6e4556eb02e0b2f29ba0650d52c31657.java:231)
at com.pegarules.generated.activity.ra_action_pyonbeforewindowclose_6e4556eb02e0b2f29ba0650d52c31657.perform(ra_action_pyonbeforewindowclose_6e4556eb02e0b2f29ba0650d52c31657.java:87)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3597)
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:646)
at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:481)
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:3453)
at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:403)
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1338)

***Moderator Edit-Vidyaranjan: Closing thread as duplicate***