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[HDFS-4092] Update file deletion logic to support snapshot files
...When snapshots are created, the blocks are shared among the snapshot files and the original file. Deletion of the snapshot file or the original file does not necessarily lead to deleti...
, 2012-10-25, 20:33
[HDFS-4091] Add snapshot quota to limit the number of snapshots
...Once a directory has been set to snapshottable, users could create snapshots of the directories. In this JIRA, we add a quota to snapshottable directories. The quota is set by ad...
, 2012-10-24, 21:41
[HDFS-4099] Clean up replication code and add more javadoc
...FSNamesystem.checkReplicationFactor(..) should be combined with BlockManager.checkReplication(..). Add javadoc to the replication related method in BlockManager. Also clean up those methods....
, 2012-10-23, 15:01
[HDFS-4078] Handle replication in snapshots
...Without snapshots, file replication is the same as block replication.With snapshot, the file replication R_o of the original file and the file replication R_s of the snapshot file could poss...
, 2012-10-22, 19:51
[HDFS-4079] Add SnapshotManager
...SnapshotManager maintains a list for all the snapshottable directories in the namespace. It also supports snapshot related methods such as setting a directory to snapshottable, creatin...
, 2012-10-21, 22:36
[HDFS-4088] Remove "throws QuotaExceededException" from an INodeDirectoryWithQuota constructor
...The constructor body does not throw QuotaExceededException. We should remove it from the declaration....
, 2012-10-20, 15:01
[HDFS-4077] Support snapshottable INodeDirectory
...Allow INodeDirectory to be set to snapshottable INodeDirectory so that snapshots of the directory can be created....
, 2012-10-19, 23:31
[HDFS-4076] Support snapshot of single files
...The snapshot of a file shares the blocks with the original file in order to avoid copying data. However, the snapshot file has its own metadata so that it could have independent permis...
, 2012-10-19, 20:40
[HDFS-4073] Two minor improvements to FSDirectory
...Add a debug log message to FSDirectory.unprotectedAddFile(..) for the caught IOException. Remove "throw UnresolvedLinkException" from addToParent(..)....
, 2012-10-19, 15:01
[HDFS-4037] Rename the getReplication() method in BlockCollection to getBlockReplication()
...In the BlockCollection interface, "getReplication" actually means "get block replication". Let's make it clear in the name....
, 2012-10-19, 01:40
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