unable to start Message server and dispatcher in j2ee engine

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Hi

When i am trying to start j2ee engine, message server and dispatcher are not starting.I have checked in developer trace of message server i got the following error.....

<b>[Thr 5076] Fri Nov 16 17:37:39 2007

[Thr 5076] *** ERROR => MsSRead: NiBufReceive (rc=NIECONN_BROKEN) [msxxserv.c 9163]

[Thr 5076] *** ERROR => MsSClientHandle: MsSRead C1 (sapep_QN7_00), MSEINTERN [msxxserv.c 3778]

[Thr 5076] MsSExit: received SIGINT (2)

[Thr 5076] ***LOG Q02=> MsSHalt, MSStop (Msg Server 5100) [msxxserv.c 5334]</b>

and i checkd in default trace i got the following error

<b>1.5#00111120E5260012000000020000147000043BBD4424E5AA#1191583984968#com.sap.engine.services.httpserver.dispatcher##com.sap.engine.services.httpserver.dispatcher#######OrderedChannel for p4 service##0#0#Error##Plain###Failure in session communication between current dispatcher and server with ID 9661150. Sending notification message for disconnected client failed.

com.sap.engine.frame.cluster.message.DestinationNotAvailableException: Participant 9,661,150 is not available.

at com.sap.engine.core.cluster.impl6.session.SessionConnectorImpl.send(SessionConnectorImpl.java:181)

at com.sap.engine.core.cluster.impl6.ClusterManagerImpl.ss_send(ClusterManagerImpl.java:2502)

at</b> Thanks & Regards

Sowmya