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[HDFS-6950] Add Additional unit tests for HDFS-6581 - HDFS - [issue]
...Create additional unit tests for HDFS-6581 in addition to existing ones in HDFS-6927....
http://issues.apache.org/jira/browse/HDFS-6950    Author: Xiaoyu Yao, 2014-08-28, 00:04
[HDFS-6929] NN periodically unlinks lazy persist files with missing replicas from namespace - HDFS - [issue]
...Occasional data loss is expected when using the lazy persist flag due to node restarts. The NN will optionally unlink lazy persist files from the namespace to avoid them from showing up as c...
http://issues.apache.org/jira/browse/HDFS-6929    Author: Arpit Agarwal, 2014-08-27, 23:59
[HDFS-6854] Enhance CLI to support memory storage. - HDFS - [issue]
...HDFS-5851 outlines support for memory as a storage medium in HDFS. CLI is most convenient way to use the feature. This jira purpose is to track necessary CLI changes....
http://issues.apache.org/jira/browse/HDFS-6854    Author: Tassapol Athiapinya, 2014-08-27, 23:56
[HDFS-6924] Add new RAM_DISK storage type - HDFS - [issue]
...Add a new RAM_DISK storage type which could be backed by tmpfs/ramfs on Linux or alternative RAM disk on other platforms....
http://issues.apache.org/jira/browse/HDFS-6924    Author: Arpit Agarwal, 2014-08-27, 23:53
[HDFS-6925] DataNode should attempt to place replicas on transient storage first if lazyPersist flag is received - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6925    Author: Arpit Agarwal, 2014-08-27, 23:52
[HDFS-6926] DN support for saving replicas to persistent storage and evicting in-memory replicas - HDFS - [issue]
...Add the following: A lazy writer on the DN to move replicas from RAM disk to persistent storage. 'Evict' persisted replicas from RAM disk to make space for new blocks....
http://issues.apache.org/jira/browse/HDFS-6926    Author: Arpit Agarwal, 2014-08-27, 23:52
[HDFS-6927] Add unit tests - HDFS - [issue]
...Add a bunch of unit tests to cover flag persistence, propagation to DN, ability to write replicas to RAM disk, lazy writes to disk and eviction from RAM disk....
http://issues.apache.org/jira/browse/HDFS-6927    Author: Arpit Agarwal, 2014-08-27, 23:52
[HDFS-6923] Propagate LazyPersist flag to DNs via DataTransferProtocol - HDFS - [issue]
...If the LazyPersist flag is set in the file properties, the DFSClient will propagate it to the DataNode via DataTransferProtocol....
http://issues.apache.org/jira/browse/HDFS-6923    Author: Arpit Agarwal, 2014-08-27, 23:34
[HDFS-6922] Add LazyPersist flag to INodeFile, save it in FsImage and edit logs - HDFS - [issue]
...Support for saving the LazyPersist flag in the FsImage and edit logs....
http://issues.apache.org/jira/browse/HDFS-6922    Author: Arpit Agarwal, 2014-08-27, 23:33
[HDFS-6879] Adding tracing to Hadoop RPC - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6879    Author: Masatake Iwasaki, 2014-08-27, 23:02
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