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[HDFS-7837] Erasure Coding: allocate and persist striped blocks in NameNode - HDFS - [issue]
...Try to finish the remaining work from HDFS-7339 (except the ClientProtocol/DFSClient part): Allow FSNamesystem#getAdditionalBlock to create striped blocks and persist striped blocks to editl...
http://issues.apache.org/jira/browse/HDFS-7837    Author: Jing Zhao, 2015-02-28, 06:11
[HDFS-7749] Erasure Coding: Add striped block support in INodeFile - HDFS - [issue]
...This jira plan to add a new INodeFile feature to store the stripped blocks information in case that the INodeFile is erasure coded....
http://issues.apache.org/jira/browse/HDFS-7749    Author: Jing Zhao, 2015-02-27, 21:22
[MAPREDUCE-6248] Allow users to get the MR job information for distcp - MapReduce - [issue]
...Currently the DistCp is acting as a tool and the corresponding MapReduce Job  is created and used inside of its execute method. It is thus difficult for external services to query its p...
http://issues.apache.org/jira/browse/MAPREDUCE-6248    Author: Jing Zhao, 2015-02-27, 00:18
[HDFS-7535] Utilize Snapshot diff report for distcp - HDFS - [issue]
...Currently HDFS snapshot diff report can identify file/directory creation, deletion, rename and modification under a snapshottable directory. We can use the diff report for distcp between the...
http://issues.apache.org/jira/browse/HDFS-7535    Author: Jing Zhao, 2015-02-26, 23:17
[HDFS-7827] Erasure Coding: support striped blocks in non-protobuf fsimage - HDFS - [issue]
...HDFS-7749 only adds code to persist striped blocks to protobuf-based fsimage. We should also add this support to the non-protobuf fsimage since it is still used for use cases like offline im...
http://issues.apache.org/jira/browse/HDFS-7827    Author: Jing Zhao, 2015-02-25, 07:14
[HDFS-7828] List variable length blocks in Fsck - HDFS - [issue]
...HDFS-3689 adds new functionalities to create blocks with variable length. It will be helpful to add functionality to fsck to list these blocks (i.e., blocks which are not the last block of a...
http://issues.apache.org/jira/browse/HDFS-7828    Author: Jing Zhao, 2015-02-24, 03:16
[HDFS-7829] Code clean up for LocatedBlock - HDFS - [issue]
...We can do some code cleanup for LocatedBlock, including: Using a simple Builder pattern to avoid multiple constructors Setting data fields like corrupt and offset to final...
http://issues.apache.org/jira/browse/HDFS-7829    Author: Jing Zhao, 2015-02-24, 02:40
[HDFS-7826] Erasure Coding: Update INodeFile quota computation for striped blocks - HDFS - [issue]
...Currently INodeFile's quota computation only considers contiguous blocks (i.e., INodeFile#blocks). We need to update it to support striped blocks....
http://issues.apache.org/jira/browse/HDFS-7826    Author: Jing Zhao, 2015-02-24, 02:04
[HDFS-7728] Avoid updating quota usage while loading edits - HDFS - [issue]
...Per the discussion here, currently we call INode#addSpaceConsumed while file/dir/snapshot deletion, even if this is still in the edits loading process. This is unnecessary and can cause issu...
http://issues.apache.org/jira/browse/HDFS-7728    Author: Jing Zhao, 2015-02-19, 05:23
[HDFS-7743] Code cleanup of BlockInfo and rename BlockInfo to BlockInfoContiguous - HDFS - [issue]
...In the work of erasure coding (HDFS-7285), we plan to extend the class BlockInfo to two subclasses: BlockReplicationInfo and BlockGroupInfo (HDFS-7716). To ease the HDFS-EC branch syncing wi...
http://issues.apache.org/jira/browse/HDFS-7743    Author: Jing Zhao, 2015-02-17, 08:12
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB