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[HDFS-4441] Refactor INodeDirectoryWithSnapshot.Diff as a top level generic class - HDFS - [issue]
...INodeDirectoryWithSnapshot.Diff is for recording the difference between the current state and a previous state of the children list of an INodeDirectory.  It is easy to refactor the cod...
http://issues.apache.org/jira/browse/HDFS-4441    Author: Tsz Wo, 2013-01-26, 13:31
[HDFS-4436] The snapshot copy INode.recordModification(..) returned is never used - HDFS - [issue]
...INode.recordModification(..) and some other related methods currently returns a pair of current object and the snapshot copy.  However, the snapshot copy is never used....
http://issues.apache.org/jira/browse/HDFS-4436    Author: Tsz Wo, 2013-01-25, 13:32
[HDFS-4098] Support append to original files which are snapshotted - HDFS - [issue]
...When a regular file is reopened for append, the type is changed from INodeFile to INodeFileUnderConstruction.  The type of snapshotted files (i.e. original files) is INodeFileWithLink. ...
http://issues.apache.org/jira/browse/HDFS-4098    Author: Tsz Wo, 2013-01-18, 13:34
[HDFS-3449] TestFileCreation fails - HDFS - [issue]
...Tests run: 15, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 41.737 sec <<< FAILURE!testFileCreationSetLocalInterface(org.apache.hadoop.hdfs.TestFileCreation)  Time elapsed...
http://issues.apache.org/jira/browse/HDFS-3449    Author: Tsz Wo, 2013-01-17, 23:47
[HDFS-4407] In INodeDirectoryWithSnapshot, change combinePostDiff to merge-sort like - HDFS - [issue]
...Change combinePostDiff to merge-sort like so that it is more efficient.  Also, it should not modify the postDiff parameter....
http://issues.apache.org/jira/browse/HDFS-4407    Author: Tsz Wo, 2013-01-17, 13:16
[HDFS-4397] Combined diff may not be identical to the diffs applied sequentially - HDFS - [issue]
...combinePostDiff(..) may put the wrong node into the deleted list....
http://issues.apache.org/jira/browse/HDFS-4397    Author: Tsz Wo, 2013-01-15, 13:03
[HDFS-4330] Support snapshots up to the snapshot limit - HDFS - [issue]
...Make sure that the SNAPSHOT_LIMIT (= 65536) per snapshottable directory can be supported....
http://issues.apache.org/jira/browse/HDFS-4330    Author: Tsz Wo, 2013-01-02, 22:40
[HDFS-4103] Support O(1) snapshot creation - HDFS - [issue]
...In our first snapshot implementation, snapshot creation runs in O(N) and occupies O(N) memory space, where N = # files + # directories + # symlinks in the snapshot.  The advantages of t...
http://issues.apache.org/jira/browse/HDFS-4103    Author: Tsz Wo, 2012-12-27, 15:42
[HDFS-4317] Change INode to support HDFS-4103 - HDFS - [issue]
...This is a subtask separated from HDFS-4103: Change Diff to support undo. Add createSnapshotCopy() for inode Reorganize the INode and its subclasses constructors and some other methods....
http://issues.apache.org/jira/browse/HDFS-4317    Author: Tsz Wo, 2012-12-17, 13:29
[HDFS-4293] TestSnapshot fails - HDFS - [issue]
...After merged with trunk (r1419193), TestSnapshot fails.  We should also check other snapshot tests....
http://issues.apache.org/jira/browse/HDFS-4293    Author: Tsz Wo, 2012-12-11, 13:31
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