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https://issues.apache.org/jira/browse/YARN-7806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16337320#comment-16337320
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Sunil G commented on YARN-7806:
-------------------------------
Committing shortly.
> DS will hang if ATSv2 back end is unavailable.
> -----------------------------------------------
>
> Key: YARN-7806
> URL: https://issues.apache.org/jira/browse/YARN-7806
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Priority: Major
> Attachments: YARN-7806.01.patch
>
>
> DS publishes container start/stop events using sync API. If back end is down
> for some reasons, then DS will hang till container start/stop events are
> published. By default, retry is 30 and interval is 1sec.
> To publish single entity using sync API will take 1 minutes to come out. In
> case of DS, if number of containers are 10 then 10minutes for start event and
> 10minutes for stop event. Overall 20 minutes will wait.
>
> DS should publish container events using asyn api.
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