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Posted to yarn-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/01/04 08:47:00 UTC
[jira] [Commented] (YARN-7086) Release all containers aynchronously
[ https://issues.apache.org/jira/browse/YARN-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17802704#comment-17802704 ]
Shilun Fan commented on YARN-7086:
----------------------------------
Bulk update: moved all 3.4.0 non-blocker issues, please move back if it is a blocker. Retarget 3.5.0.
> Release all containers aynchronously
> ------------------------------------
>
> Key: YARN-7086
> URL: https://issues.apache.org/jira/browse/YARN-7086
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Arun Suresh
> Assignee: Manikandan R
> Priority: Major
> Attachments: YARN-7086.001.patch, YARN-7086.002.patch, YARN-7086.Perf-test-case.patch
>
>
> We have noticed in production two situations that can cause deadlocks and cause scheduling of new containers to come to a halt, especially with regard to applications that have a lot of live containers:
> # When these applicaitons release these containers in bulk.
> # When these applications terminate abruptly due to some failure, the scheduler releases all its live containers in a loop.
> To handle the issues mentioned above, we have a patch in production to make sure ALL container releases happen asynchronously - and it has served us well.
> Opening this JIRA to gather feedback on if this is a good idea generally (cc [~leftnoteasy], [~jlowe], [~curino], [~kasha], [~subru], [~roniburd])
> BTW, In YARN-6251, we already have an asyncReleaseContainer() in the AbstractYarnScheduler and a corresponding scheduler event, which is currently used specifically for the container-update code paths (where the scheduler realeases temp containers which it creates for the update)
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