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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11612) Workaround for Curator's ChildReaper requiring Guava 15+
Date Thu, 19 Feb 2015 09:07:11 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327140#comment-14327140
] 

Hadoop QA commented on HADOOP-11612:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12699625/HADOOP-11612.002.patch
  against trunk revision 946456c.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/5742//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5742//console

This message is automatically generated.

> Workaround for Curator's ChildReaper requiring Guava 15+
> --------------------------------------------------------
>
>                 Key: HADOOP-11612
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11612
>             Project: Hadoop Common
>          Issue Type: Task
>    Affects Versions: 2.8.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>         Attachments: HADOOP-11612.001.patch, HADOOP-11612.002.patch
>
>
> HADOOP-11492 upped the Curator version to 2.7.1, which makes the {{ChildReaper}} class
use a method that only exists in newer versions of Guava (we have 11.0.2, and it needs 15+).
 As a workaround, we can copy the {{ChildReaper}} class into hadoop-common and make a minor
modification to allow it to work with Guava 11.
> The {{ChildReaper}} is used by Curator to cleanup old lock znodes.  Curator locks are
needed by YARN-2942.



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