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https://issues.apache.org/jira/browse/FLINK-23209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann reopened FLINK-23209:
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> Timeout heartbeat if the heartbeat target is no longer reachable
> ----------------------------------------------------------------
>
> Key: FLINK-23209
> URL: https://issues.apache.org/jira/browse/FLINK-23209
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.13.1, 1.12.4
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> With FLINK-23202 it should now be possible to see when a remote RPC endpoint
> is no longer reachable. This can be used by the {{HeartbeatManager}} to mark
> an heartbeat target as no longer reachable. That way, it is possible for
> Flink to react faster to losses of components w/o having to wait for the
> heartbeat timeout to expire. This will result in faster recoveries (e.g. if a
> {{TaskExecutor}} dies).
> With this change we can improve trading off speed of detecting dead
> {{TaskManagers}} against running on an unstable/overloaded network where
> heartbeat messages are delayed.
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