IBM Integration Bus, Version 9.0.0.8 Operating Systems: AIX, HP-Itanium, Linux, Solaris, Windows, z/OS

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Failing over a multi-instance broker and queue manager

An active broker instance fails over when its associated active multi-instance queue manager either terminates unexpectedly, or stops in a controlled manner. The action of stopping an active broker instance on an active multi-instance queue manager does not by itself cause a standby broker instance to become active.

The following examples list the 3 failover scenarios:

Controlled failover.
- Switch over to a standby instance by stopping an active queue manager with the endmqm command:
```
endmqm -s QueueManager
```
  where QueueManager is the name of the queue manager that you are stopping. As the active instance of the queue managers goes down, the standby instance starts.
Immediate failover
- Stop an active queue manager process with the kill command on Linux and UNIX, or end the process with the Windows task manager on Windows:
```
kill -9 amqzxma0 ProcessID
```
  where ProcessID is the process ID of the amqzxma0 process that you need to kill. The standby instance of the queue manager becomes active.
Shutting down the server
- Reboot the server that the active instance of the queue manager is running on. The standby instance of the queue manager becomes active.

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Last updated Friday, 21 July 2017