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[HDFS-6835] Archival Storage: Add a new API to set storage policy - HDFS - [issue]
...The new data migration tool proposed HDFS-6801 will determine if the storage policy of files needs to be updated.  The tool needs a new API to set storage policy....
http://issues.apache.org/jira/browse/HDFS-6835    Author: Tsz Wo Nicholas Sze, 2014-08-12, 20:33
[HDFS-6837] Code cleanup for Balancer and Dispatcher - HDFS - [issue]
...A few minor code cleanup changes: The constructor of Dispatcher should not read Balancer's conf properties; the values should be passed by parameters. StorageGroup.utilization can be removed...
http://issues.apache.org/jira/browse/HDFS-6837    Author: Tsz Wo Nicholas Sze, 2014-08-12, 16:57
[HDFS-6812] Remove addBlock and replaceBlock from DatanodeDescriptor - HDFS - [issue]
...DatanodeDescriptor.addBlock(..) is not used anymore.  DatanodeDescriptor.replaceBlock(..) is only used once....
http://issues.apache.org/jira/browse/HDFS-6812    Author: Tsz Wo Nicholas Sze, 2014-08-07, 15:58
[HDFS-6809] Move some Balancer's inner classes to standalone classes - HDFS - [issue]
...Some of the inner classes in Balancer such as MovedBlocks, Matcher, etc. can be moved out as standalone classes so that these classes can be reused by other code such as the new data migrati...
http://issues.apache.org/jira/browse/HDFS-6809    Author: Tsz Wo Nicholas Sze, 2014-08-07, 15:58
[HDFS-6739] Add getDatanodeStorageReport to ClientProtocol - HDFS - [issue]
...ClientProtocol has a getDatanodeReport(..) methods for retrieving datanode report from namenode.  However, there is no way to get datanode storage report....
http://issues.apache.org/jira/browse/HDFS-6739    Author: Tsz Wo Nicholas Sze, 2014-08-02, 23:12
[HDFS-6685] Balancer should preserve storage type of replicas - HDFS - [issue]
...When Balancer moves replicas to balance the cluster, it should always move replicas from a storage with any type to another storage with the same type, i.e. it preserves storage type of repl...
http://issues.apache.org/jira/browse/HDFS-6685    Author: Tsz Wo Nicholas Sze, 2014-08-01, 17:28
[HDFS-6700] BlockPlacementPolicy shoud choose storage but not datanode for deletion - HDFS - [issue]
...HDFS-2832 changed datanode storage model from a single storage, which may correspond to multiple physical storage medias, to a collection of storages with each storage corresponding to a phy...
http://issues.apache.org/jira/browse/HDFS-6700    Author: Tsz Wo Nicholas Sze, 2014-08-01, 03:38
[HDFS-6702] DFSClient should create blocks using StorageType - HDFS - [issue]
...When DFSClient asks NN for a new block (via addBlock), NN returns a LocatedBlock with storage type information.  However, DFSClient does not use StorageType to create blocks with DN. &n...
http://issues.apache.org/jira/browse/HDFS-6702    Author: Tsz Wo Nicholas Sze, 2014-08-01, 03:38
[HDFS-1294] StreamFile is a datanode servlet but it is misplaced in the namenode package - HDFS - [issue]
...The StreamFile servlet is only used by datanode but not namenode....
http://issues.apache.org/jira/browse/HDFS-1294    Author: Tsz Wo Nicholas Sze, 2014-07-31, 00:00
[HDFS-1251] Unnecessary log messages are printed in info level - HDFS - [issue]
...When I run a job on a secure cluster, the following messages are printed on the console.10/06/19 05:05:18 INFO hdfs.DFSClient: Created HDFS_DELEGATION_TOKEN token 125033 for tsz10/06/19 05:0...
http://issues.apache.org/jira/browse/HDFS-1251    Author: Tsz Wo Nicholas Sze, 2014-07-30, 21:59
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