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From "Gour Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8122) Component health threshold monitor
Date Sat, 21 Apr 2018 01:53:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16446576#comment-16446576
] 

Gour Saha commented on YARN-8122:
---------------------------------

bq. I think we should consider whether or not ComponentHealthThresholdMonitor should be a
service that is added into the AM CompositeService. For example, we are scheduling the ContainerStatusRetriever
in the ServiceScheduler's thread pool. We could be doing the same thing with the health threshold
monitor tasks.
[~billie.rinaldi], very good point. I am uploading patch 005 with this suggestion. I made
one additional change where I am adding 3 secs to the initial delay to account for time taken
to request for containers before the monitor kicks in. For practical purposes, the additional
3 secs will be minuscule compared to real usecases like LLAP which uses 400 secs of initial
delay. It is primarily to help the tests where I am using 0 secs delay since I want them to
run as fast as possible.

> Component health threshold monitor
> ----------------------------------
>
>                 Key: YARN-8122
>                 URL: https://issues.apache.org/jira/browse/YARN-8122
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Gour Saha
>            Assignee: Gour Saha
>            Priority: Major
>         Attachments: YARN-8122.001.patch, YARN-8122.002.patch, YARN-8122.003.patch, YARN-8122.004.patch,
YARN-8122.draft.patch
>
>
> Slider supported component health threshold monitoring with SLIDER-1246. It would be
good to have this feature for YARN Service too.



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