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https://issues.apache.org/jira/browse/FLINK-9099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16417250#comment-16417250
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ASF GitHub Bot commented on FLINK-9099:
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Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/5775
Thanks for the review @GJL. Rebasing onto the latest master and merging.
> Failing allocated slots not noticed
> -----------------------------------
>
> Key: FLINK-9099
> URL: https://issues.apache.org/jira/browse/FLINK-9099
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Affects Versions: 1.5.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: flip-6
> Fix For: 1.5.0
>
>
> When allocating slots for eager scheduling, it can happen that allocated
> slots get failed after they are assigned to the {{Execution}} (e.g. due to a
> {{TaskExecutor}} heartbeat timeout). If there are still some uncompleted slot
> futures, then this will not be noticed since the {{Execution}} is assigned to
> the {{LogicalSlot}} only after all slot futures are completed. Therefore, the
> allocated slot failure will go unnoticed until this happens.
> In order to speed up failures, we should directly assign the {{Execution}} to
> the {{LogicalSlot}} once the slot is assigned to the {{Execution}}.
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