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https://issues.apache.org/jira/browse/AMBARI-12280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Srimanth Gunturi resolved AMBARI-12280.
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Resolution: Fixed
> HiveServer2 upgrade/downgrade should deregister old server after new one is
> started
> -----------------------------------------------------------------------------------
>
> Key: AMBARI-12280
> URL: https://issues.apache.org/jira/browse/AMBARI-12280
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.0
> Reporter: Srimanth Gunturi
> Assignee: Srimanth Gunturi
> Priority: Critical
> Fix For: 2.1.0
>
> Attachments: AMBARI-12280.patch, AMBARI-12280_2.patch
>
>
> During upgrade/downgrade, the deregister is happening before the new HS2 is
> started. This can lead to a case where there is no HS2 up and running. The
> order needs to be fixed, to first start target version of HS2 and then do the
> deregister.
> 1. Switch hive-server2 to the new software version, start the new process,
> and deregister the old version of hive-server2:
> Since the current version would have changed before hive version is obtained
> for deregister command, the version should be obtained using the HDP
> versioned path.
> /usr/hdp/$HDP_VERSION/hive/bin/hive --version
> It will be safer to use the full path to hive for this, instead of relying on
> the $PATH variable setting.
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