Fix (APAR): JR27732 Status: Fix Release: 6.0.1.6,6.0.1.5 Operating System: AIX,HP-UX,i5/OS,Linux,Solaris,Windows Supersedes Fixes: CMVC Defect: xxxxxx Byte size of APAR: 20737 Date: 2008-04-16 Abstract: Periodically, some applications fail to start during startup WebSphere Process Server. Description/symptom of problem: JR27732 resolves the following problem: ERROR DESCRIPTION: Periodically during server startup customer see the ArtifactLoader initializing twice for the same application and then that application (could be any one of the applications not necessarily the same one everytime) does not start. If they then restart the same application again then that works fine . There are in tremendous number of applications (50+) and it is suspected that this behaviour is somehow related to the number of applications being started . The stack trace is as follows : 11/06/07 13:55:40:814 BST] 0000002c ApplicationMg A WSVR0200I: Starting application: MRT_RetrievePersonDetails_1 11/06/07 13:55:41:267 BST] 0000002c ArtifactLoade I com.ibm.ws.al. bootstrap.WASBootstrap appStart(DeployedApplication) CWLAG0205I: Artifactloader initializing is complete for module MRT_RetrievePersonDetails_1. 11/06/07 13:55:41:330 BST] 0000002c ArtifactLoade I com.ibm.ws.al. bootstrap.WASBootstrap appStart(DeployedApplication) CWLAG0205I: Artifactloader initializing is complete for module MRT_RetrievePersonDetails_1. 11/06/07 13:55:41:377 BST] 0000002c SCA I SCA_STARTING_APP_MODULE 11/06/07 13:55:47:908 BST] 0000002c SCA I SCA_STARTED_APP_MODULE 11/06/07 13:55:48:142 BST] 0000002c ApplicationMg E WSVR0101W: An error occurred starting, MRT_RetrievePersonDetails_1 11/06/07 13:55:48:142 BST] 0000002c ApplicationMg A WSVR0217I: Stopping application: MRT_RetrievePersonDetails_1 11/06/07 13:55:48:392 BST] 0000002c SCA I SCA_STOPPING_APP_MODULE 11/06/07 13:55:56:220 BST] 0000002c SCA I SCA_STOPPED_APP_MODULE 11/06/07 13:55:56:236 BST] 0000002c ApplicationMg A WSVR0220I: Application stopped: MRT_RetrievePersonDetails_1 LOCAL FIX: TestFix provided but customer requires official IFix on both 6016 and 6022 PROBLEM SUMMARY USERS AFFECTED: WebSphere Process Server 6.0.1.x users. PROBLEM DESCRIPTION: Periodically, some applications fail to start during startup WebSphere Process Server. RECOMMENDATION: None During startup of WebSphere Process Server, when two or more threads read and/or change the application running status information concurrently, will cause the system to throw the java.util.ConcurrentModificationException exception. This will cause the relevant application can not be started. PROBLEM CONCLUSION: Applying this interim fix, will correct the problem. Directions to apply fix: Download and follow Update Installer installation instructions. The Update Installer can be downloaded from the following link: http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991 1) Copy the pak file to the directory maintenance in the UpdateInstaller directory 2) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix. 3) Run the UpdateInstaller and follow the prompts. 4) Restart WebSphere Process Server. Directions to remove fix: NOTE: FIXES MUST BE REMOVED IN THE REVERSE ORDER IN WHICH THEY WERE APPLIED. DO NOT REMOVE A FIX UNLESS ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED. YOU MAY REAPPLY ANY REMOVED FIX. Example: If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, then fix2 may be removed 1) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix. 2) Follow the Fix instructions that are packaged with the Fix Installer on how to uninstall and reinstall the Fix. 3) Restart WebSphere Process Server. Directions to re-apply fix: 1) Shutdown WebSphere. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix. 2) Run the UpdateInstaller and follow the instructions. The Update Installer can be downloaded from the following link: http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991 3) Restart WebSphere Process Server. Additional Information: