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[HDFS-6997] Archival Storage: add more tests for data migration and replicaion - HDFS - [issue]
...This JIRA is to add more tests to check if the data migration tool could move the replicas correctly and if the replication monitor could replicate block correctly when storage policy is con...
http://issues.apache.org/jira/browse/HDFS-6997    Author: Tsz Wo Nicholas Sze, 2014-09-06, 23:42
[HDFS-6584] Support Archival Storage - HDFS - [issue]
...In most of the Hadoop clusters, as more and more data is stored for longer time, the demand for storage is outstripping the compute. Hadoop needs a cost effective and easy to manage solution...
http://issues.apache.org/jira/browse/HDFS-6584    Author: Tsz Wo Nicholas Sze, 2014-09-05, 22:27
[HDFS-5285] Flatten INodeFile hierarchy: Add UnderContruction Feature - HDFS - [issue]
...For files, there are INodeFile, INodeFileUnderConstruction, INodeFileWithSnapshot and INodeFileUnderConstructionWithSnapshot for representing whether a file is under construction or whether ...
http://issues.apache.org/jira/browse/HDFS-5285    Author: Tsz Wo Nicholas Sze, 2014-09-04, 02:15
[HDFS-5526] Datanode cannot roll back to previous layout version - HDFS - [issue]
...Current trunk layout version is -48.Hadoop v2.2.0 layout version is -47.If a cluster is upgraded from v2.2.0 (-47) to trunk (-48), the datanodes cannot start with -rollback.  It will fa...
http://issues.apache.org/jira/browse/HDFS-5526    Author: Tsz Wo Nicholas Sze, 2014-09-04, 00:41
[HDFS-4962] Use enum for nfs constants - HDFS - [issue]
...The constants defined in MountInterface and some other classes are better to use enum types instead of lists of int....
http://issues.apache.org/jira/browse/HDFS-4962    Author: Tsz Wo Nicholas Sze, 2014-09-04, 00:36
[HDFS-6920] Archival Storage: check the storage type of delNodeHintStorage when deleting a replica - HDFS - [issue]
...in BlockManager.chooseExcessReplicates, it does not check the storage type of delNodeHintStorage.  Therefore,  delNodeHintStorage could possibly be chosen even if its storage type ...
http://issues.apache.org/jira/browse/HDFS-6920    Author: Tsz Wo Nicholas Sze, 2014-08-27, 22:08
[HDFS-6911] Archival Storage: check if a block is already scheduled in Mover - HDFS - [issue]
...Similar to balancer, Mover should remember all blocks already scheduled to move (movedBlocks). Then, check it before schedule a new block move....
http://issues.apache.org/jira/browse/HDFS-6911    Author: Tsz Wo Nicholas Sze, 2014-08-27, 18:39
[HDFS-6906] Archival Storage: Add more tests for BlockStoragePolicy - HDFS - [issue]
...The logic for choosing storage types is tricky, especially when there are chosen storage types and/or unavailable storage types.  Let's add more unit tests....
http://issues.apache.org/jira/browse/HDFS-6906    Author: Tsz Wo Nicholas Sze, 2014-08-25, 07:41
[HDFS-6878] Change MiniDFSCluster to support StorageType configuration for individual directories - HDFS - [issue]
...Currently, MiniDFSCluster only supports a single StorageType configuration for all datadnodes, i.e. setting all directories in all datanodes to one StorageType.  It should support setti...
http://issues.apache.org/jira/browse/HDFS-6878    Author: Tsz Wo Nicholas Sze, 2014-08-21, 20:44
[HDFS-6861] Separate Balancer specific logic form Dispatcher - HDFS - [issue]
...In order to balance datanode storage utilization of a cluster, Balancer (1) classifies datanodes into different groups (overUtilized, aboveAvgUtilized, belowAvgUtilized and underUtilized), (...
http://issues.apache.org/jira/browse/HDFS-6861    Author: Tsz Wo Nicholas Sze, 2014-08-19, 23:07
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