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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Work logged] (HIVE-21911) Pluggable LlapMetricsListener on Tez side to disable / resize Daemons
Date Mon, 01 Jul 2019 08:39:00 GMT


ASF GitHub Bot logged work on HIVE-21911:

                Author: ASF GitHub Bot
            Created on: 01/Jul/19 08:38
            Start Date: 01/Jul/19 08:38
    Worklog Time Spent: 10m 
      Work Description: pvary commented on pull request #691: HIVE-21911: Pluggable LlapMetricsListener
on Tez side to disable / resize Daemons

 File path: common/src/java/org/apache/hadoop/hive/conf/
 @@ -4353,6 +4353,9 @@ private static void populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
       new TimeValidator(TimeUnit.MILLISECONDS), "Collect llap daemon metrics in the AM every
given milliseconds,\n" +
       "so that the AM can use this information, to make better scheduling decisions.\n" +
       "If it's set to 0, then the feature is disabled."),
 Review comment:
   Since all of the related configs currently has AM in the names, I would keep it this way
and when we move this out then we can rename them as needed.
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Issue Time Tracking

    Worklog Id:     (was: 270035)
    Time Spent: 50m  (was: 40m)

> Pluggable LlapMetricsListener on Tez side to disable / resize Daemons
> ---------------------------------------------------------------------
>                 Key: HIVE-21911
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: llap, Tez
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-21911.patch
>          Time Spent: 50m
>  Remaining Estimate: 0h
> We need to have a way to plug in different listeners which act upon the LlapDaemon statistics.
> This listener should be able to disable / resize the LlapDaemons based on health data.

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