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https://issues.apache.org/jira/browse/QPID-5043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Conway reassigned QPID-5043:
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Assignee: (was: Alan Conway)
> HA verify that cluster can be upgraded one node at a time.
> ----------------------------------------------------------
>
> Key: QPID-5043
> URL: https://issues.apache.org/jira/browse/QPID-5043
> Project: Qpid
> Issue Type: Task
> Components: C++ Clustering
> Affects Versions: 0.24
> Reporter: Alan Conway
>
> The intent is that from 0.24 on a HA cluster can be upgraded node-by-node.
> As part of the release process for 0.26 onwards, we need to verify that this
> does indeed work, and document any restrictions or special proceedures needed
> to make it work.
> We need to verify upgrade from say v1 to v2 works on an *active* HA cluster:
> - start v1 cluster.
> - run clients that are active during the upgrade.
> - shut down nodes one by one and restart with v2.
> - verify no message loss, clients fail-over OK.
> We will assume that new features introduced by v2 are *not* used until the
> entire cluster is upgraded to v2.
> Ideally we want an automated upgrade test, if not we need to document in
> detail the procedure for a manual test.
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