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HDFS-6463. Clarify behavior of AclStorage#createFsPermissionForExtendedAcl in comments. Contributed by Chris Nauroth.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1598437 13f79535-47bb-0310-9956-ffa450edef68
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Chris Nauroth 2014-05-29 22:56:58 +00:00
parent 04b0f6851b
commit 39f3d135d0
2 changed files with 7 additions and 0 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -454,6 +454,9 @@ Release 2.5.0 - UNRELEASED
HDFS-6447. balancer should timestamp the completion message.
(Juan Yu via wang).
HDFS-6463. Clarify behavior of AclStorage#createFsPermissionForExtendedAcl
in comments. (cnauroth)
OPTIMIZATIONS
HDFS-6214. Webhdfs has poor throughput for files >2GB (daryn)

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/AclStorage.java
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@ -338,6 +338,10 @@ private static AclFeature createAclFeature(List<AclEntry> accessEntries,
* ACL, based on its access ACL entries. For a correctly sorted ACL, the
* first entry is the owner and the last 2 entries are the mask and other
* entries respectively. Also preserve sticky bit and toggle ACL bit on.
* Note that this method intentionally copies the permissions of the mask
* entry into the FsPermission group permissions. This is consistent with the
* POSIX ACLs model, which presents the mask as the permissions of the group
* class.
*
* @param accessEntries List<AclEntry> access ACL entries
* @param existingPerm FsPermission existing permissions