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The following objects are needed when using WebSphere MQ clusters. They are included in the set of default objects defined when you create a queue manager except on z/OS, where they can be found in the customization samples.

Do not alter the default queue definitions. We can alter the default channel definitions in the same way as any other channel definition, using MQSC or PCF commands.

SYSTEM.CLUSTER.REPOSITORY.QUEUE

Each queue manager in a cluster has a local queue called SYSTEM.CLUSTER.REPOSITORY.QUEUE. This queue is used to store all the full repository information. This queue is not normally empty.

SYSTEM.CLUSTER.COMMAND.QUEUE

Each queue manager in a cluster has a local queue called SYSTEM.CLUSTER.COMMAND.QUEUE. This queue is used to carry messages to the full repository. The queue manager uses this queue to send any new or changed information about itself to the full repository queue manager and to send any requests for information about other queue managers. This queue is normally empty.

SYSTEM.CLUSTER.TRANSMIT.QUEUE

Each queue manager has a definition for a local queue called SYSTEM.CLUSTER.TRANSMIT.QUEUE. This is the transmission queue for all messages to all queues and queue managers that are within clusters.

SYSTEM.DEF.CLUSSDR

Each cluster has a default CLUSSDR channel definition called SYSTEM.DEF.CLUSSDR. This is used to supply default values for any attributes that you do not specify when you create a cluster-sender channel on a queue manager in the cluster.

SYSTEM.DEF.CLUSRCVR

Each cluster has a default CLUSRCVR channel definition called SYSTEM.DEF.CLUSRCVR. This is used to supply default values for any attributes that you do not specify when you create a cluster-receiver channel on a queue manager in the cluster.

 

Parent topic:

Designing clusters


qc11280_


 

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