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https://issues.apache.org/jira/browse/YARN-4679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15138333#comment-15138333
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Karthik Kambatla commented on YARN-4679:
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Thanks Jason. My bad - completely forgot the discussion around this.
[~jianhe], [~vinodkv] - I vaguely remember us discussing the notion of a
threshold for fraction of nodes that were previously connected in addition to
this timeout. Do I remember right? Do you think it still makes sense and we can
use it as a proxy for recovery completion?
> When work-preserving restart is enabled, the scheduler should wait for the
> earlier of recovery completion and configured wait time
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-4679
> URL: https://issues.apache.org/jira/browse/YARN-4679
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Reporter: Karthik Kambatla
>
> When work-preserving restart is enabled, it appears the restart (or failover)
> is unconditionally blocked for the configured delay even if the recovery
> itself finishes sooner than this. This should be updated to wait for the
> earlier of the two conditions. Also, it would be nice to allow setting the
> config to -1 to indicate wait as long as need for the recovery to be
> completed.
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