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From "Michael Han (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (ZOOKEEPER-3141) testLeaderElectionWithDisloyalVoter is flaky
Date Fri, 14 Sep 2018 23:24:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16615502#comment-16615502
] 

Michael Han edited comment on ZOOKEEPER-3141 at 9/14/18 11:23 PM:
------------------------------------------------------------------

Thanks [~lvfangmin], appreciate your help on fixing this.

To identify a build where this test fail, you can start at flaky test dashboard:

[https://builds.apache.org/job/zOOkeeper-Find-Flaky-Tests/lastSuccessfulBuild/artifact/report.html] 

You will see this test is currently ranking as one of the top flaky tests. Then click the
show/hide label of the right most column it will expand and list the builds. 

Currently, these builds can be used to triage

[179|https://builds.apache.org/job/ZooKeeper-trunk//179]   [181|https://builds.apache.org/job/ZooKeeper-trunk//181] 
 [189|https://builds.apache.org/job/ZooKeeper-trunk//189] 


was (Author: hanm):
Thanks [~lvfangmin], appreciate your help on fixing this.

To identify a build where this test fail, you can start at flaky test dashboard:

[https://builds.apache.org/job/zOOkeeper-Find-Flaky-Tests/lastSuccessfulBuild/artifact/report.html] 

You will see this test is currently ranking on of the top flaky tests. Then click the show/hide
label of the right most column it will expand and list the builds. 

Currently, these builds can be used to triage

[179|https://builds.apache.org/job/ZooKeeper-trunk//179]   [181|https://builds.apache.org/job/ZooKeeper-trunk//181] 
 [189|https://builds.apache.org/job/ZooKeeper-trunk//189] 

> testLeaderElectionWithDisloyalVoter is flaky
> --------------------------------------------
>
>                 Key: ZOOKEEPER-3141
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3141
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: leaderElection, server, tests
>    Affects Versions: 3.6.0
>            Reporter: Michael Han
>            Priority: Major
>
> The unit test added in ZOOKEEPER-3109 turns out to be quite flaky.
> See [https://builds.apache.org/job/zOOkeeper-Find-Flaky-Tests/511/artifact/report.html]
> Recent failure builds:
> [https://builds.apache.org/job/ZooKeeper-trunk//181] 
> [https://builds.apache.org/job/ZooKeeper-trunk//179] 
> [https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/2123/testReport/junit/org.apache.zookeeper.server.quorum/QuorumPeerMainTest/testLeaderElectionWithDisloyalVoter_stillHasMajority/] 
>  
> Snapshot of the failure:
> {code:java}
> org.apache.zookeeper.server.quorum.QuorumPeerMainTest.testLeaderElectionWithDisloyalVoter_stillHasMajority
> Error Message
> Server 0 should have joined quorum by now
> Stacktrace
> junit.framework.AssertionFailedError: Server 0 should have joined quorum by now
> 	at org.apache.zookeeper.server.quorum.QuorumPeerMainTest.testLeaderElection(QuorumPeerMainTest.java:1482)
> 	at org.apache.zookeeper.server.quorum.QuorumPeerMainTest.testLeaderElectionWithDisloyalVoter_stillHasMajority(QuorumPeerMainTest.java:1431)
> 	at org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)
> {code}



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