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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8535) Cut hadoop build times in half (upgrade maven-compiler-plugin to 2.5.1)
Date Wed, 27 Jun 2012 16:40:43 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402341#comment-13402341
] 

Hadoop QA commented on HADOOP-8535:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12533669/HADOOP-8535.patch
  against trunk revision .

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

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

    -1 javadoc.  The javadoc tool appears to have generated 2 warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

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

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1144//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1144//console

This message is automatically generated.
                
> Cut hadoop build times in half (upgrade maven-compiler-plugin to 2.5.1)
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-8535
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8535
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 0.23.3, 2.0.1-alpha
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>         Attachments: HADOOP-8535.patch
>
>
> starting with 2.4.0 maven-compiler-plugin started caching the class loader for the javac
compiler. This patch upgrades the compiler to 2.5.1. On my box, build times are reduced from
5 minutes to 2 minutes. 

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