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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2933) Ability to monitor the jute.maxBuffer usage in real-time
Date Wed, 08 Nov 2017 21:10:01 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244729#comment-16244729
] 

Hadoop QA commented on ZOOKEEPER-2933:
--------------------------------------

+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/1176//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1176//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1176//console

This message is automatically generated.

> Ability to monitor the jute.maxBuffer usage in real-time
> --------------------------------------------------------
>
>                 Key: ZOOKEEPER-2933
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2933
>             Project: ZooKeeper
>          Issue Type: New Feature
>          Components: jute, server
>            Reporter: Andor Molnar
>            Assignee: Andor Molnar
>              Labels: buffer, buffer-length
>             Fix For: 3.5.4, 3.6.0
>
>
> This is related to jute.maxbuffer problems on the server side when Leader generates a
proposal that doesn't fit into Follower's Jute buffer causing the quorum to be broken.
> Proposed solution is to add the following new JMX Beans:
> 1. Add getJuteMaxBuffer to ZookeeperServerBean which monitors the current jute.maxbuffer
setting,
> 2. Add get last/min/max ProposalSize to LeaderBean which monitors the size of the latest/min/max
proposal.



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