Alan Conway created QPID-4428:
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Summary: HA add UUID tag to avoid using an out of date queue.
Key: QPID-4428
URL: https://issues.apache.org/jira/browse/QPID-4428
Project: Qpid
Issue Type: Bug
Components: C++ Clustering
Affects Versions: 0.19
Reporter: Alan Conway
Assignee: Alan Conway
Here's the scenario: we have a cluster with primary A and backups B and C.
There is a queue Q that is replicated to both. Now A dies and B takes over as
primary. Before C has connected to B, a client destroys Q and creates a new
queue with the same name, Q. When C does connect it sees a queue named Q and
mistakenly assumes it is the same queue as it's own Q - so it has an incorrect
replica of Q. The same scenario applies to exchanges.
The fix is to tag queues and exchanges with a UUID, so backups can identify
that the queue has changed even if the name is the same.
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