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https://issues.apache.org/jira/browse/HIVE-15090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15651344#comment-15651344
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Thejas M Nair commented on HIVE-15090:
--------------------------------------
Some options are -
* Defining the exceptions that can be thrown by DelegationTokenStore that are
not fatal and can be ignored.
* Updating DBTokenStore to not thrown what could be transient errors, and just
log those
[~pvary] What are your thoughts ?
> Temporary DB failure can stop ExpiredTokenRemover thread
> --------------------------------------------------------
>
> Key: HIVE-15090
> URL: https://issues.apache.org/jira/browse/HIVE-15090
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 1.3.0, 2.1.0, 2.0.1, 2.2.0
> Reporter: Peter Vary
> Assignee: Peter Vary
> Fix For: 2.2.0
>
> Attachments: HIVE-15090.2-branch-2.1.patch, HIVE-15090.2.patch,
> HIVE-15090.2.patch, HIVE-15090.3-branch-2.1.patch, HIVE-15090.patch
>
>
> In HIVE-13090 we decided that we should not close the metastore if there is
> an unexpected exception during the expired token removal process, but that
> fix leaves a running metastore without ExpiredTokenRemover thread.
> To fix this I will move the catch inside the running loop, and hope the
> thread could recover from the exception
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