Till Rohrmann created FLINK-3184:
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Summary: Decrease Akka timeouts on cluster side to make system
more responsive
Key: FLINK-3184
URL: https://issues.apache.org/jira/browse/FLINK-3184
Project: Flink
Issue Type: Improvement
Affects Versions: 1.0.0
Reporter: Till Rohrmann
Assignee: Till Rohrmann
Priority: Minor
Currently, the default timeout for futures is set to 100 s. This also the time
used to wait in between restart attempts if no other value has been explicitly
specified. Especially in the streaming case, it is often necessary to detect
failures and to react to failures in shorter period than 100 s. Therefore, I
propose to decrease the default timeout to 10 s.
Additionally, I propose to introduce a slightly higher timeout for the client
side (e.g. 60 s). The reason is that in case of a {{JobManager}} the client has
to wait until the cluster has recovered. Using ZooKeeper for that can entail a
longer timeout than 10 s. In such a case a recovery could be falsely recognized
as a lost connection.
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