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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9468) JVM path embedded in fuse binaries
Date Wed, 10 Apr 2013 19:41:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13628164#comment-13628164
] 

Hadoop QA commented on HADOOP-9468:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12578044/0001-HADOOP-9468.-Not-embedding-JVM-library-paths-in-FUSE.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-hdfs-project/hadoop-hdfs.

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/2440//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2440//console

This message is automatically generated.
                
> JVM path embedded in fuse binaries
> ----------------------------------
>
>                 Key: HADOOP-9468
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9468
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>         Attachments: 0001-HADOOP-9468.-Not-embedding-JVM-library-paths-in-FUSE.patch
>
>
> When the FUSE binaries are built, the paths to libraries in the JVMs is embedded in the
RPATH so that they can be found at run-time. From an Apache Bigtop perspective, this is not
sufficient because the software may be run on a machine configured very differently from the
one on which they were built - so a wrapper sets LD_LIBRARY_PATH according to JAVA_HOME. I
recently saw an issue where the original JVM path existed, causing LD_LIBRARY_PATH to be ignored
in favor of the RPATH, but it was not the JVM intended for running Hadoop (not JAVA_HOME),
and this caused problems.
> I'm told that setting LD_LIBRARY_PATH is standard practice before using the fuse program
anyway, and if that's the case, I think removing the RPATH from the binaries is a good idea.

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