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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2017/07/23 14:30:01 UTC
[jira] [Closed] (FLINK-7231) SlotSharingGroups are not always
released in time for new restarts
[ https://issues.apache.org/jira/browse/FLINK-7231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephan Ewen closed FLINK-7231.
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> SlotSharingGroups are not always released in time for new restarts
> ------------------------------------------------------------------
>
> Key: FLINK-7231
> URL: https://issues.apache.org/jira/browse/FLINK-7231
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Affects Versions: 1.3.1
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Blocker
> Fix For: 1.4.0, 1.3.2
>
>
> In the case where there are not enough resources to schedule the streaming program, a race condition can lead to a sequence of the following errors:
> {code}
> java.lang.IllegalStateException: SlotSharingGroup cannot clear task assignment, group still has allocated resources.
> {code}
> This eventually recovers, but may involve many fast restart attempts before doing so.
> The root cause is that slots are not cleared before the next restart attempt.
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