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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9205) Java7: path to native libraries should be passed to tests via -Djava.library.path rather than env.LD_LIBRARY_PATH
Date Tue, 15 Jan 2013 16:28:19 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13553958#comment-13553958
] 

Kihwal Lee commented on HADOOP-9205:
------------------------------------

I tried with jdk 1.7.0_11 but could not reproduce the issue. May be your run-time env has
something different from ours. I don't have anything special: Fedora 17 x86_64, freshly downloaded
Oracle jdk 7u11. JAVA_HOME was set accordingly. maven 3.0.4 and maven --version shows the
right java info. My run-time env does not have LD_LIBRARY_PATH or JAVA_LIBRARY_PATH set. No
hadoop specific settings either.
                
> Java7: path to native libraries should be passed to tests via -Djava.library.path rather
than env.LD_LIBRARY_PATH
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9205
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9205
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 2.0.3-alpha, 0.23.6
>            Reporter: Ivan A. Veselovsky
>            Assignee: Ivan A. Veselovsky
>         Attachments: HADOOP-9205.patch
>
>
> Currently the path to native libraries is passed to unit tests via environment variable
LD_LIBRARTY_PATH. This is okay for Java6, but does not work for Java7, since Java7 ignores
this environment variable.
> So, to run the tests with native implementation on Java7 one needs to pass the paths
to native libs via -Djava.library.path system property rather than the LD_LIBRARY_PATH env
variable.
> The suggested patch fixes the problem via setting the paths to native libs using both
LD_LIBRARY_PATH and -Djava.library.path property. This way the tests work equally on both
Java6 and Java7.

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