IC83228: WMQ V5.3X NONSTOP KERNEL QMGR HANGS ON STARTUP AFTER 5 MINUTES.

WebSphere MQ for HP NonStop Server V5.3.1 fix pack 5.3.1.9

APAR status

• Closed as program error.

Error description

• Listener process hangs on startup for 5 minutes then
  gives an fdc with the following information:
  Probe Id          :-        RM264002
  Component         :-      rfxConnectCache
  Probe Description :- AMQ6125: An internal WebSphere MQ error has
  occurred.
  Comment1          :- Gave up waiting for cache to be
  initialized
  Comment2          :- Tried 300 times at 1 second  intervals
  .
  This is in a clustered environment and the clsuter channels are
  in retry mode at the time of the problem.
  

Local fix

Problem summary

• The Channel Server calls rriCheckChannels on startup and because
  there are cluster sender channels in the retry list, the Channel
  Server attempts to connect to the cache.
  At the same time the repman is trying to get a channel status
  from the Channel server, so the cache has not yet been created.
  The Channel server calls rfxConnectCache which will loop for 5
  mins attempting to connect to the cache, without responding to
  the repman process so both are in a deadlock.
  

Problem conclusion

• Remove the channel server wait on cluster cache operations
  during queue manager startup
  

Temporary fix

• Terminate the primary channel server process
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBS MQ NSS ITA

• Fixed component ID

  5724A3902

Applicable component levels

• R531 PSY

     UP