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https://issues.apache.org/jira/browse/HIVE-12856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15138020#comment-15138020
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Sergey Shelukhin commented on HIVE-12856:
-----------------------------------------
The errors are due to issues in one of the blocking patches that were already
fixed in that jira. I think I'll just wait until the two blocking JIRAs are
committed.
> LLAP: update (add/remove) the UDFs available in LLAP when they are changed
> (refresh periodically)
> -------------------------------------------------------------------------------------------------
>
> Key: HIVE-12856
> URL: https://issues.apache.org/jira/browse/HIVE-12856
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-12856.nogen.patch, HIVE-12856.patch
>
>
> I don't think re-querying the functions is going to scale, and the sessions
> obviously cannot notify all LLAP clusters of every change. We should add
> global versioning to metastore functions to track changes, and then possibly
> add a notification mechanism, potentially thru ZK to avoid overloading the
> metastore itself.
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