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https://issues.apache.org/jira/browse/FLINK-2616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14747222#comment-14747222
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Ufuk Celebi commented on FLINK-2616:
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Why don't wait w/o an explicit timeout in the test? Our Travis has an implicit
test timeout of "Maven did not produce any output for X minutes" (currently 5)
after which the build fails and you get a stack trace of where it is stuck. If
it still happens, we can think about different options. In the common case
where the machine is fast, everything should be fine.
> Failing Test: ZooKeeperLeaderElectionTest
> -----------------------------------------
>
> Key: FLINK-2616
> URL: https://issues.apache.org/jira/browse/FLINK-2616
> Project: Flink
> Issue Type: Bug
> Components: Tests
> Reporter: Matthias J. Sax
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: test-stability
>
> {noformat}
> Tests run: 6, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 146.262 sec
> <<< FAILURE! - in
> org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionTest
> testMultipleLeaders(org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionTest)
> Time elapsed: 22.329 sec <<< ERROR!
> java.util.concurrent.TimeoutException: Listener was not notified about a
> leader within 20000ms
> at
> org.apache.flink.runtime.leaderelection.TestingListener.waitForLeader(TestingListener.java:69)
> at
> org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionTest.testMultipleLeaders(ZooKeeperLeaderElectionTest.java:334)
> {noformat}
> https://travis-ci.org/mjsax/flink/jobs/78553799
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