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https://issues.apache.org/jira/browse/FLINK-15252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17328152#comment-17328152
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Flink Jira Bot commented on FLINK-15252:
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This major issue is unassigned and itself and all of its Sub-Tasks have not 
been updated for 30 days. So, it has been labeled "stale-major". If this ticket 
is indeed "major", please either assign yourself or give an update. Afterwards, 
please remove the label. In 7 days the issue will be deprioritized.

> Heartbeat with large accumulator payload may cause instable clusters
> --------------------------------------------------------------------
>
>                 Key: FLINK-15252
>                 URL: https://issues.apache.org/jira/browse/FLINK-15252
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Coordination
>            Reporter: Maximilian Michels
>            Priority: Major
>              Labels: stale-major
>
> We've seen timeouts which look like they are induced by large accumulator 
> payloads. Removing the accumulators stabilized the cluster.
> IMHO the heartbeat should not contain the accumulator payload. Accumulators 
> should be handled separately.



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