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J2EE Engine Restarts Automatically

Hi all,

We have a clustered environment with 2 J2EE dispatchers and 2 server nodes per J2EE dispatchers. Whenever a server node has a problem with the Messaging Service all the J2EE server nodes restart.

The following is part of the std_server log that seems to have problem


[Framework -> criticalShutdown] Missed broadcast due to network problems. Restart is required (advanced Reconnect)
Sep 09, 2008 8:27:53 AM             com.sap.engine.core.Framework [Thread[Thread-25250,5,SAPEngine_System_Thread[impl:5]_Group]] Fatal: Critical shutdown was invoked. Reason is: Missed broadcast due to network problems. Restart is required (advanced Reconnect)
[Framework -> criticalShutdown] Exiting Listener Loop. This requires a restart of the node. Possible reason is an interrupted
reconnect session to the message server.
Sep 09, 2008 8:27:53 AM             com.sap.engine.core.Framework [SAP J2EE Engine|MS Socket Listener] Fatal: Critical shutdown was invoked. Reason is: Exiting Listener Loop. This requires a restart of the node. Possible reason is an interrupted reconnect session to the message server.

The following the dev_ms log

 

[Thr  1] Fri Sep 09 08:55:13 2008
[Thr  1] MsSSuspendCheck: C10 (J2EE3231271), no write within 40 secs, disconnect now 
[Thr  1] MsJ2EE_AddDisconnectedNode: add node [3231271] into disconnect list
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] MsJ2EE_CleanDisconnectedNodes: clean disconnect list
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C6 (J2EE43102890) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]
[Thr  1] *** ERROR => MsSClientHandle: C9 (J2EE3231270) send inv_name J2EE3231271 [msxxserv_mt. 4256]
[Thr  1] ***LOG Q0U=> MsSClientHandle, inv_name (J2EE3231271) [msxxserv_mt. 4265]

Anyone familiar with "Missed broadcast due to network problems. Restart is required".

Can I change any parameter to increase the MsSSuspendCheck time to more than 40s.

regards,

Roshni

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