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https://issues.apache.org/jira/browse/HADOOP-9439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe moved HDFS-4640 to HADOOP-9439:
----------------------------------------------------

          Component/s:     (was: security)
                       native
     Target Version/s:   (was: 2.0.5-beta)
    Affects Version/s:     (was: 2.0.4-alpha)
                       2.0.4-alpha
                  Key: HADOOP-9439  (was: HDFS-4640)
              Project: Hadoop Common  (was: Hadoop HDFS)
    
> JniBasedUnixGroupsMapping: fix some crash bugs
> ----------------------------------------------
>
>                 Key: HADOOP-9439
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9439
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 2.0.4-alpha
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HDFS-4640.002.patch
>
>
> JniBasedUnixGroupsMapping has some issues.
> * sometimes on error paths variables are freed prior to being initialized
> * re-allocate buffers less frequently (can reuse the same buffer for multiple 
> calls to getgrnam)
> * allow non-reentrant functions to be used, to work around client bugs
> * don't throw IOException from JNI functions if the JNI functions do not 
> declare this checked exception.
> * don't bail out if only one group name among all the ones associated with a 
> user can't be looked up.

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