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https://issues.apache.org/jira/browse/AMBARI-14543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Hurley updated AMBARI-14543:
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Attachment: AMBARI-14543.patch
> Adding A Removed Host Back To a Cluster Post-Upgrade Does Not Install New
> Stacks Correctly
> ------------------------------------------------------------------------------------------
>
> Key: AMBARI-14543
> URL: https://issues.apache.org/jira/browse/AMBARI-14543
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Jonathan Hurley
> Assignee: Jonathan Hurley
> Priority: Critical
> Fix For: 2.2.1
>
> Attachments: AMBARI-14543.patch
>
>
> 1) cluster with hdp 2.3.2 and c6401 and c6402
> 2) install hdp 2.3.4 on all hosts
> 3) delete host from the cluster, c6401
> 4) perform upgrade
> 5) c6402 is now running hdp 2.3.4
> 6) add c6401 back in (remember: is has 2.3.2 and 2.3.4 installed, with
> hdp-select pointing to 2.3.2)
> 7) the host gets added back in but it does not get switched to the current
> running cluster version of 2.3.4. The c6401 host is still pointing to hdp
> 2.3.2
> On add, the host should have been moved to 2.3.4 to match the rest of the
> cluster. Instead, it was left on 2.3.2, which now it's running a different
> version than the rest of my cluster.
> What happens is that we never call {{hdp-select}} during a normal install of
> a component - only during an upgrade. If you think about it, when you're on
> HDP 2.2 and you install HDP 2.3, you don't want to call {{hdp-select}} yet
> since you're not ready to start running HDP 2.3.
> So when you add a host back which had a prior version of HDP and then a new
> version side-installed, the pointers are still to the old versions. Nothing
> will move them since that host didn't go through the upgrade. If the host
> didn't have HDP on it when it was added back, that would prevent this problem.
> A workaround is to invoke {{hdp-select set all <version>}} on the re-added
> host.
> A fix for this might be to invoke {{hdp-select}} after installing a service
> on a host.
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