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https://issues.apache.org/jira/browse/FLINK-12164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875361#comment-16875361
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Yun Tang commented on FLINK-12164:
----------------------------------
This problem happened again, here is the instance:
[https://api.travis-ci.org/v3/job/551302724/log.txt] .
> JobMasterTest.testJobFailureWhenTaskExecutorHeartbeatTimeout is unstable
> ------------------------------------------------------------------------
>
> Key: FLINK-12164
> URL: https://issues.apache.org/jira/browse/FLINK-12164
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Reporter: Aljoscha Krettek
> Assignee: Chesnay Schepler
> Priority: Critical
> Labels: pull-request-available, test-stability
> Fix For: 1.9.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> {code}
> 07:28:23.957 [ERROR] Tests run: 24, Failures: 0, Errors: 1, Skipped: 0, Time
> elapsed: 8.968 s <<< FAILURE! - in
> org.apache.flink.runtime.jobmaster.JobMasterTest
> 07:28:23.957 [ERROR]
> testJobFailureWhenTaskExecutorHeartbeatTimeout(org.apache.flink.runtime.jobmaster.JobMasterTest)
> Time elapsed: 0.177 s <<< ERROR!
> java.util.concurrent.ExecutionException: java.lang.Exception: Unknown
> TaskManager 69a7c8c18a36069ff90a1eae8ec41066
> at
> org.apache.flink.runtime.jobmaster.JobMasterTest.registerSlotsAtJobMaster(JobMasterTest.java:1746)
> at
> org.apache.flink.runtime.jobmaster.JobMasterTest.runJobFailureWhenTaskExecutorTerminatesTest(JobMasterTest.java:1670)
> at
> org.apache.flink.runtime.jobmaster.JobMasterTest.testJobFailureWhenTaskExecutorHeartbeatTimeout(JobMasterTest.java:1630)
> Caused by: java.lang.Exception: Unknown TaskManager
> 69a7c8c18a36069ff90a1eae8ec41066
> {code}
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