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com.sap.tc.webdynpro.services.session.LockExceptio

Hi,

From my WD Java application, i'm calling some URL and displaying the content from that in my WD application.

The performance of this is very slow and it seems to be hang for some time.

Portal version is 7.0 and patch is SP 18.

When i checked the log it throws an exception :

com.sap.tc.webdynpro.sessionmanagement#sap.com/tcwddispwda#com.sap.tc.webdynpro.sessionmanagement.ExceptionHandler.handleThrowable#psaxena#177552##n/a##4b50da90170c11de857c00145e23c9af#SAPEngine_Application_Thread[impl:3]_20##0#0#Error#1#/System/UserInterface#Java###Exception occured during processing of Web Dynpro application . The causing exception is nested.

[EXCEPTION]

#2#sap.com/pb/PageBuilder#com.sap.tc.webdynpro.services.session.LockException: Thread SAPEngine_Application_Thread[impl:3]_20 failed to acquire exclusive lock on client session ClientSession(id=(J2EE12791800)ID1709694850DB02709529586100848222End_5108164). Existing locks: LockingManager(ThreadName:SAPEngine_Application_Thread[impl:3]_20, exclusive client session lock: ClientSessionLock(SAPEngine_Application_Thread[impl:3]_30), shared client session locks: ClientSessionSharedLockManager([]), app session locks: ApplicationSessionLockManager([]), current request: sap.com/pb/PageBuilder).Hint: Take a thread dump of the server node to find the blocking thread that causes the problem.

at com.sap.tc.webdynpro.clientserver.session.ClientSession$LockingManager.lock(ClientSession.java:1511)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:233)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)

Any idea why this problem is coming and what is the solution for this.

Thanks and Regards

Puneet

Former Member replied

You might also want to have a look at these SAP notes:

1113811: Web Dynpro error page, known error situations, error codes

1248135: SAP NW Portal Platform NW04s, SPs18 - Known Issues

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