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From "Ramesh Kumar Thangarajan (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-23208) Update guaranteed capacity in ZK only when WM is enabled
Date Thu, 16 Apr 2020 03:39:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-23208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ramesh Kumar Thangarajan updated HIVE-23208:
--------------------------------------------
    Attachment: HIVE-23208.1.patch
        Status: Patch Available  (was: Open)

> Update guaranteed capacity in ZK only when WM is enabled
> --------------------------------------------------------
>
>                 Key: HIVE-23208
>                 URL: https://issues.apache.org/jira/browse/HIVE-23208
>             Project: Hive
>          Issue Type: Improvement
>          Components: llap
>            Reporter: Rajesh Balamohan
>            Assignee: Ramesh Kumar Thangarajan
>            Priority: Major
>         Attachments: HIVE-23208.1.patch
>
>
> [https://github.com/apache/hive/blob/master/llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java#L1091]
>  
> Though WM is not enabled, it ends up updating ZK for every dag completion event. For
short running queries with concurrency, this ends up with lots of calls to ZK.
> It would be good to invoke this only when WM is enabled.
>  
>  



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