Till Rohrmann created FLINK-18677:
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Summary: 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: 1.11.1, 1.10.1, 1.12.0
Reporter: Till Rohrmann
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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