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Problem 5 — Unknown state of a cluster.

 

The state of the cluster is unknown and it is required to completely reset all of the systems in it.

For all full repository queue managers, follow these steps:

  1. Alter queue managers that are full repositories so they are no longer full repositories.

  2. Resolve any in doubt CLUSSDR channels.

  3. Wait for the CLUSSDR channels to become inactive.

  4. Stop the CLUSRCVR channels.

  5. When all of the CLUSRCVR channels on all of the full repository systems are stopped, issue the command REFRESH CLUSTER(DEMO) REPOS(YES)

  6. Alter the queue managers so they are full repositories.

  7. Start the CLUSRCVR channels to re-enable them for communication.

Carry out the following steps on the other partial repository queue managers:

  1. Resolve any in doubt CLUSSDR channels.

  2. Make sure all CLUSSDR channels on the queue manager are stopped or inactive.

  3. Issue the command REFRESH CLUSTER(DEMO) REPOS(YES).

Under normal conditions the full repositories will exchange information about the queues and queue managers in the cluster. If one full repository is refreshed, the cluster information is recovered from the other. To stop this happening all of the CLUSRCVR channels to full repositories are stopped and the CLUSSDR's should be inactive. When you REFRESH the full repository systems, none of them are able to communicate, so will start from the same cleared state.

As you REFRESH the partial repository systems they rejoin the cluster and rebuild it to the complete set of queue managers and queues.

 

Parent topic:

Resolving Problems


qc13350_


 

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