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https://issues.apache.org/jira/browse/FLINK-15252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17227411#comment-17227411
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Till Rohrmann commented on FLINK-15252:
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Maybe, one can say that FLINK-4399 would solve this problem.
> 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
>
> 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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