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[HDFS-6934] Move checksum computation off the hot path when writing to RAM disk - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6934    Author: Arpit Agarwal, 2014-08-23, 22:35
[HDFS-6932] Balancer and Mover tools should ignore replicas on RAM_DISK - HDFS - [issue]
...Per title, balancer and mover should just ignore replicas on RAM disk instead of attempting to move them to other nodes....
http://issues.apache.org/jira/browse/HDFS-6932    Author: Arpit Agarwal, 2014-08-23, 22:31
[HDFS-6910] Initial prototype implementation for replicas in memory using tmpfs - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6910    Author: Arpit Agarwal, 2014-08-23, 22:13
[HDFS-6918] Investigate eviction from RAM disk via file truncation - HDFS - [issue]
...We proposed evicting blocks from RAM disk by just deleting the file. Assuming the client completes its read quickly the block will be deleted when the client closes its handle.Colin Patrick ...
http://issues.apache.org/jira/browse/HDFS-6918    Author: Arpit Agarwal, 2014-08-23, 21:58
[HDFS-6899] Allow changing MiniDFSCluster volumes per DN and capacity per volume - HDFS - [issue]
...MiniDFSCluster hardcodes the number of directories per volume to two. Propose removing the hard-coded restriction.It would be useful to limit the capacity of individual storage directories f...
http://issues.apache.org/jira/browse/HDFS-6899    Author: Arpit Agarwal, 2014-08-23, 16:07
[HDFS-6919] Consider enforcing single limit for RAM disk usage and replicas cached via locking - HDFS - [issue]
...The DataNode can have a single limit for memory usage which applies to both replicas cached via CCM and replicas on RAM disk.See comments 1, 2 and 3 for discussion....
http://issues.apache.org/jira/browse/HDFS-6919    Author: Arpit Agarwal, 2014-08-23, 08:27
[HDFS-5851] Support memory as a storage medium - HDFS - [issue]
...Memory can be used as a storage medium for smaller/transient files for fast write throughput.More information/design will be added later....
http://issues.apache.org/jira/browse/HDFS-5851    Author: Arpit Agarwal, 2014-08-23, 06:45
[HDFS-6758] block writer should pass the expected block size to DataXceiverServer - HDFS - [issue]
...DataXceiver initializes the block size to the default block size for the cluster. This size is later used by the FsDatasetImpl when applying VolumeChoosingPolicy.    block.set...
http://issues.apache.org/jira/browse/HDFS-6758    Author: Arpit Agarwal, 2014-08-21, 20:44
[HDFS-6907] Source files missing license headers - HDFS - [issue]
...The following files were committed without license headers as flagged by Jenkins. !????? /home/jenkins/jenkins-slave/workspace/PreCommit-HDFS-Build/trunk/hadoop-hdfs-project/hadoop-hdfs...
http://issues.apache.org/jira/browse/HDFS-6907    Author: Arpit Agarwal, 2014-08-21, 19:13
[HDFS-5151] Add test case for commitBlockSynchronization with invalid Storage - HDFS - [issue]
...Per title, we need a new test case to cover this....
http://issues.apache.org/jira/browse/HDFS-5151    Author: Arpit Agarwal, 2014-08-20, 18:07
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