[jira] [Commented] (ZOOKEEPER-3042) testFailedTxnAsPartOfQuorumLoss is flaky

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544727#comment-16544727 ] 

Hadoop QA commented on ZOOKEEPER-3042:
--------------------------------------

+1 overall.  GitHub Pull Request  Build
      

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 3.0.1) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1941//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1941//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1941//console

This message is automatically generated.

> testFailedTxnAsPartOfQuorumLoss is flaky
> ----------------------------------------
>
>                 Key: ZOOKEEPER-3042
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3042
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: tests
>    Affects Versions: 3.5.3, 3.6.0, 3.4.12
>            Reporter: Bogdan Kanivets
>            Assignee: Bogdan Kanivets
>            Priority: Minor
>              Labels: flaky, pull-request-available
>             Fix For: 3.5.5
>
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> According to the [dashboard|https://builds.apache.org/job/ZooKeeper-Find-Flaky-Tests/lastSuccessfulBuild/artifact/report.html] testFailedTxnAsPartOfQuorumLoss is flaky. I've looked at some logs and there are multiple causes of flakiness. One of them is in this line after step 5
> {code:java}
> Assert.assertEquals(1, outstanding.size());
> {code}
> For example [this|https://builds.apache.org/job/ZooKeeper_branch35_java10/10/artifact/build/test/logs] build of 3.5
> I was able to reproduce this particular issue in debug mode and the problem is that 'outstading' map can also have 'closeSession' entries that are expected.
> I'll submit a patch to relax this check.



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