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https://issues.apache.org/jira/browse/FLINK-18677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-18677:
-----------------------------------
    Labels: pull-request-available  (was: )

> ZooKeeperLeaderRetrievalService does not invalidate leader in case of 
> SUSPENDED connection
> ------------------------------------------------------------------------------------------
>
>                 Key: FLINK-18677
>                 URL: https://issues.apache.org/jira/browse/FLINK-18677
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Coordination
>    Affects Versions: 1.10.1, 1.12.0, 1.11.1
>            Reporter: Till Rohrmann
>            Assignee: Matthias
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> The {{ZooKeeperLeaderRetrievalService}} does not invalidate the leader if the 
> ZooKeeper connection gets SUSPENDED. This means that a {{TaskManager}} won't 
> cancel its running tasks even though it might miss a leader change. I think 
> we should at least make it configurable whether in such a situation the 
> leader listener should be informed about the lost leadership. Otherwise, we 
> might run into the situation where an old and a newly recovered instance of a 
> {{Task}} can run at the same time.



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