Poor performance and system events are not working

If the system is performing very slowly and system events are not working, there may be a problem with the WebSphere MQ publish/subscribe broker.

  1. Open the file /var/mqm/qmgrs/<queue manager name>/qm.ini and look for the following:
    MaxActiveChannels=1000Broker:
    

    If you see this entry, replace the Channels and Broker parameters with the following:

    Channels:

    MaxChannels=1000

    MaxActiveChannels=1000

    SyncPointIfPersistent=yes

  2. Save your changes
  3. Shut down Business Integration Connect (see Shutting down below).
  4. Stop WebSphere MQ by:
    1. Stopping the publish/subscribe broker:
      endmqbrk -m <hostname>.queue.manager
      
    2. Stopping the listener:
      endmqlsr -m <hostname>.queue.manager
      
    3. Stopping the queue manager:
      endmqm <hostname>.queue.manager
      
  5. Create and start WebSphere MQ, using the instructions in the WebSphere Business Integration Connect Installation Guide. However, do not perform steps 2 through 4 in the procedure.
  6. Restart Business Integration Connect, using the instructions in the WebSphere Business Integration Connect Installation Guide.

Copyright IBM Corp. 2003, 2004