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[HDFS-4188] Add a snapshot id comparator - HDFS - [issue]
...The Snapshot class currently has two compareTo methods. The one for comparing IDs is not implementing the Comparable interface since Java does not allow implementing the same interface twice...
http://issues.apache.org/jira/browse/HDFS-4188    Author: Tsz Wo, 2012-11-16, 13:23
[HDFS-4177] Add a snapshot parameter to INodeDirectory.getChildrenList() - HDFS - [issue]
...With the snapshot features, the children list of directories can be different in snapshots and the current view.  The snapshot information is required to select the children list....
http://issues.apache.org/jira/browse/HDFS-4177    Author: Tsz Wo, 2012-11-14, 13:24
[HDFS-4170] Add snapshot information to INodesInPath - HDFS - [issue]
...For snapshot paths, the snapshot information is required for accessing the snapshot.For non-snapshot paths, the latest snapshot found in the path is required for maintaining diffs for modifi...
http://issues.apache.org/jira/browse/HDFS-4170    Author: Tsz Wo, 2012-11-14, 03:31
[HDFS-4102] Test replication with snapshots - HDFS - [issue]
...Replication becomes more tricky with snapshots since the original file and snapshot files could possibly be set to different replication while the blocks are share among those files.  T...
http://issues.apache.org/jira/browse/HDFS-4102    Author: Tsz Wo, 2012-11-14, 02:57
[HDFS-1865] Share LeaseChecker thread among DFSClients - HDFS - [issue]
...Each DFSClient runs a LeaseChecker thread within a JVM.  The number threads could be reduced by sharing the threads....
http://issues.apache.org/jira/browse/HDFS-1865    Author: Tsz Wo, 2012-11-07, 23:53
[HDFS-4149] Complete the code for disallowSnapshot - HDFS - [issue]
...Implement the disallowSnapshot(..) in FSNamesystem and add a resetSnapshottable(..) to SnapshotManager....
http://issues.apache.org/jira/browse/HDFS-4149    Author: Tsz Wo, 2012-11-05, 00:41
[HDFS-4146] Further work on changing INodeFile.blocks to private in Snapshot branch - HDFS - [issue]
...There was a conflict in INodeFile when merging HDFS-4143 so that I keep INodeFile.blocks as protected.  Otherwise, some code cannot be compiled.  It needs some more works....
http://issues.apache.org/jira/browse/HDFS-4146    Author: Tsz Wo, 2012-11-04, 22:00
[HDFS-4143] Change INodeFile.blocks to private - HDFS - [issue]
...INodeFile.blocks is currently package private.  It is accessed directly in quite many case.  It is better to change it to package private and access via setter and getter methods....
http://issues.apache.org/jira/browse/HDFS-4143    Author: Tsz Wo, 2012-11-03, 13:21
[HDFS-4141] Directory diff in snapshots - HDFS - [issue]
...With snapshots, the same directory could have different states, e.g. different sets of children, in different snapshots.  We implement a directory diff algorithm in this JIRA....
http://issues.apache.org/jira/browse/HDFS-4141    Author: Tsz Wo, 2012-11-03, 01:33
[HDFS-724] Pipeline close hangs if one of the datanode is not responsive. - HDFS - [issue]
...In the new pipeline design, pipeline close is implemented by sending an additional empty packet.  If one of the datanode does not response to this empty packet, the pipeline hangs. &nbs...
http://issues.apache.org/jira/browse/HDFS-724    Author: Tsz Wo, 2012-11-03, 00:16
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