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https://issues.apache.org/jira/browse/HIVE-19631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16486536#comment-16486536
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Sergey Shelukhin commented on HIVE-19631:
-----------------------------------------
Updated hiveConf related methods. I think the other ones can be made
non-synchronized separately to reduce the scope of the fix, I'm not sure about
correctness in their case, i.e. about getting tokens from metastore in parallel.
> reduce epic locking in AbstractService
> --------------------------------------
>
> Key: HIVE-19631
> URL: https://issues.apache.org/jira/browse/HIVE-19631
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Major
> Attachments: HIVE-19631.01.patch, HIVE-19631.patch
>
>
> Some services have synchronized method that do lengthy remote calls, and
> these block everyone trying to e.g. getHiveConf.
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