Home

 

CLWLUSEQ queue manager attribute

 

This queue manager attribute specifies the behavior of an MQPUT operation when the target queue has a local instance and at least one remote cluster instance (except where the MQPUT originates from a cluster channel), for queues whose CLWLUSEQ parameter has a value of QMGR. If you specify LOCAL, the local queue is the only target for MQPUTs. This is the queue manager's initial default value. If you specify ANY, the queue manager treats the local queue as another instance of the cluster queue for the purposes of workload distribution.

This attribute allows WebSphere MQ to put messages on to remotely defined queues as well as local queue instances. In this case, 'remote' means other queue managers within the cluster which also have a definition of the cluster queue. If remote instances of cluster queues can be used, there is a need to prevent WebSphere MQ from repeatedly choosing a remote instance of a cluster queue. To ensure this, WebSphere MQ applies the following rules to restrict the number of remote hops to one:

• If a message arrives over a cluster channel, it must be put to a local instance of a cluster queue.

• If put locally or over a non-cluster channel, messages can be put to a local or remote cluster queue instance.

 

Parent topic:

Queue manager attributes for workload balancing

qc13010_

 

Home