Colin Patrick McCabe created HDFS-4640:
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Summary: JniBasedUnixGroupsMapping: fix some crash bugs
Key: HDFS-4640
URL: https://issues.apache.org/jira/browse/HDFS-4640
Project: Hadoop HDFS
Issue Type: Bug
Components: security
Affects Versions: 2.0.5-beta
Reporter: Colin Patrick McCabe
Assignee: Colin Patrick McCabe
Priority: Minor
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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