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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-3448) Introduce MessageTracker to assist debug leader and leaner connectivity issues
Date Tue, 23 Jul 2019 22:30:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891422#comment-16891422
] 

Hadoop QA commented on ZOOKEEPER-3448:
--------------------------------------

+1 overall.  GitHub Pull Request  Build
      

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

    +1 tests included.  The patch appears to include 4 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/4067//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/4067//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/4067//console

This message is automatically generated.

> Introduce MessageTracker to assist debug leader and leaner connectivity issues
> ------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-3448
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3448
>             Project: ZooKeeper
>          Issue Type: Improvement
>          Components: server
>    Affects Versions: 3.6.0
>            Reporter: Michael Han
>            Assignee: Michael Han
>            Priority: Major
>              Labels: Twitter, pull-request-available
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> We want to have better insight on the state of the world when learners lost connection
with leader, so we need capture more information when that happens. We capture more information
through MessageTracker which will record the last few sent and received messages at various
protocol stage, and these information will be dumped to log files for further analysis.



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