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[HDFS-7440] Consolidate snapshot related operations in a single class - HDFS - [issue]
...Currently the snapshot-related code scatters across both FSNameSystem and FSDirectory. This jira proposes to consolidate the logic in a single class....
http://issues.apache.org/jira/browse/HDFS-7440    Author: Haohui Mai, 2014-11-26, 11:54
[HDFS-7438] Consolidate implementation of rename() - HDFS - [issue]
...The implementation of rename() resides in both FSNameSystem and FSDirectory. This jira proposes to consolidate them in a single class....
http://issues.apache.org/jira/browse/HDFS-7438    Author: Haohui Mai, 2014-11-26, 08:23
[HDFS-7444] convertToBlockUnderConstruction should preserve BlockCollection - HDFS - [issue]
...BlockInfo#convertToBlockUnderConstruction converts a BlockInfo object to a BlockInfoUnderConstruction object. The callee instead of the caller should preserve the BlockCollection field....
http://issues.apache.org/jira/browse/HDFS-7444    Author: Haohui Mai, 2014-11-26, 03:07
[HDFS-7412] Move RetryCache to NameNodeRpcServer - HDFS - [issue]
...The concept of RetryCache belongs to the RPC layer.It would be nice to separate it from the implementation of FSNameSystem....
http://issues.apache.org/jira/browse/HDFS-7412    Author: Haohui Mai, 2014-11-25, 15:40
[HDFS-7436] Consolidate implementation of concat() - HDFS - [issue]
...The implementation of concat() scatters across both FSNameSystem and FSDirectory. This jira proposes to consolidate the implementation in a single class....
http://issues.apache.org/jira/browse/HDFS-7436    Author: Haohui Mai, 2014-11-25, 15:40
[HDFS-7437] Storing block ids instead of BlockInfo object in INodeFile - HDFS - [issue]
...Currently INodeFile stores the lists of blocks as references of BlockInfo instead of the block ids. This creates implicit dependency between the namespace and the block manager.The dependenc...
http://issues.apache.org/jira/browse/HDFS-7437    Author: Haohui Mai, 2014-11-25, 01:35
[HDFS-7420] Delegate permission checks to FSDirectory - HDFS - [issue]
...Many permission checks are in fact related to FSDirectory instead of FSNameSystem. It would be nice to move them to FSDirectory to reduce the effort of moving other functions from FSNameSyst...
http://issues.apache.org/jira/browse/HDFS-7420    Author: Haohui Mai, 2014-11-22, 15:38
[HDFS-7415] Move FSNameSystem.resolvePath() to FSDirectory - HDFS - [issue]
...It would be nice to move resolvePath() to FSDirectory as the concept belongs to FSDirectory and it is a simple wrapper for the calls in FSDirectory....
http://issues.apache.org/jira/browse/HDFS-7415    Author: Haohui Mai, 2014-11-21, 15:44
[HDFS-7413] Some unit tests should use NameNodeProtocols instead of FSNameSystem - HDFS - [issue]
...HDFS-7412 proposes to changes some of the method signatures in FSNameSystem. This jira fixes the unit tests affected by the changes. Particularly, these unit tests can use NameNodeProtocols ...
http://issues.apache.org/jira/browse/HDFS-7413    Author: Haohui Mai, 2014-11-21, 15:44
[HDFS-7416] Revisit the abstraction between NameNodeRpcServer, FSNameSystem and FSDirectory - HDFS - [issue]
...NameNodeRpcServer, FSNameSystem and FSDirectory implement the namespace of the NN. In the current implementation the boundary of these classes are not fully clear.This jira tracks the effort...
http://issues.apache.org/jira/browse/HDFS-7416    Author: Haohui Mai, 2014-11-20, 21:30
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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