Cluster channels

The advice in this chapter is also applicable to cluster channels. If the queue that is showing signs of a build up of messages is the SYSTEM.CLUSTER.TRANSMIT.QUEUE, the first step in diagnosing the problem is discovering which channel, or channels, are having a problem delivering messages. To do this, do the following:

  1. Issue the following command:

    DIS CHSTATUS(*) WHERE(XQMSGSA GT 1)
    Note:
    If you have a busy cluster that has many messages moving, consider issuing this command with a higher number to eliminate the channels that have only a few messages available to deliver.

  2. Look through the output for the channel, or channels, that have large values in the field XQMSGSA. Apply the methods outlined in this chapter to determine why the channel is not moving messages, or is not moving them fast enough.