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Date: Thu, 4 Oct 2012 10:35:08 +1100 (NCT)
From: "Eli Collins (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-3753) Tests don't run with native
 libraries
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    [ https://issues.apache.org/jira/browse/HDFS-3753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13468975#comment-13468975 ] 

Eli Collins commented on HDFS-3753:
-----------------------------------

The test in HDFS-4000 failed again, the issue here is that test-patch does a clean several times so unless the patch modifies common the native library is not present. I'll ammend this patch to add an @Ignore TestHdfsNativeCodeLoader and we'll do a follow on change to remove the @Ignore and modify test-patch to run the common native build before running the Hdfs tests.
                
> Tests don't run with native libraries
> -------------------------------------
>
>                 Key: HDFS-3753
>                 URL: https://issues.apache.org/jira/browse/HDFS-3753
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: build, test
>    Affects Versions: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Colin Patrick McCabe
>             Fix For: 2.0.3-alpha
>
>         Attachments: HDFS-3753.001.patch, HDFS-3753.002.patch
>
>
> Test execution when run with the native flag and native libraries have been built don't actually use the native libs because NativeCodeLoader is unable to load native-hadoop. Eg run {{mvn compile -Pnative}} then {{mvn -Dtest=TestSeekBug test -Pnative}} and check the test output. This is because the test's java.library.path is looking for the lib in hdfs (
> hadoop-hdfs-project/hadoop-hdfs/target/native/target/usr/local/lib) however the native lib lives in common. I confirmed copying the lib to the appropriate directory fixes things. We need to update the java.library.path for test execution to include the common lib dir.  This may be an issue with MR as well.

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