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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9450) HADOOP_USER_CLASSPATH_FIRST is not honored; CLASSPATH is PREpended instead of APpended
Date Tue, 16 Apr 2013 06:59:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13632631#comment-13632631
] 

Hadoop QA commented on HADOOP-9450:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12578883/HADOOP-9450.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  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.

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

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 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
1.3.9) 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.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/2450//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2450//console

This message is automatically generated.
                
> HADOOP_USER_CLASSPATH_FIRST is not honored; CLASSPATH is PREpended instead of APpended
> --------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9450
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9450
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Mitch Wyle
>         Attachments: HADOOP-9450-branch-1.patch, HADOOP-9450-branch-1-win.patch, HADOOP-9450.patch,
HADOOP-9450.patch
>
>
> On line 133 of the hadoop shell wrapper, CLASSPATH is set as:
> CLASSPATH=${CLASSPATH}:${HADOOP_CLASSPATH}
> Notice that the built-up CLASSPATH, along with all the libs and unwanted JARS are pre-pended
BEFORE the user's HADOOP_CLASSPATH.  Therefore there is no way to put your own JARs in front
of those that the hadoop wrapper script sets.
> We propose a patch that reverses this order.  Failing that, we would like to add a command
line option to override this behavior and enable a user's JARs to be found before the wrong
ones in the Hadoop library paths.
> We always welcome your opinions.

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