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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 updated HADOOP-9439:
-----------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
committed to trunk, branch-2, branch-2.1
> 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: HADOOP-9439.001.patch, HADOOP-9439.003.patch,
> HADOOP-9439.005.patch, HADOOP-9439.006.patch, HADOOP-9439.007.patch,
> HADOOP-9439.008.patch, 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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