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[HDFS-6765] Log INodeID instead of full path in edit log when closing a file - HDFS - [issue]
...When closing a file, currently the edit log records the full path instead of the inode id. The performance is sub-optimal, and it prevents further clean ups of the code (e.g., HDFS-6757)This...
http://issues.apache.org/jira/browse/HDFS-6765    Author: Haohui Mai, 2014-07-29, 21:08
[HDFS-6278] Create HTML5-based UI for SNN - HDFS - [issue]
...This jira proposes to create a HTML5-based UI for SNN, which matches the looks and feels of the current NN UI....
http://issues.apache.org/jira/browse/HDFS-6278    Author: Haohui Mai, 2014-07-25, 23:40
[HDFS-6279] Create new index page for JN / DN - HDFS - [issue]
...This jira proposes to replace the jsp UI of DN / JN to web pages that match the looks and feels of the NN UI....
http://issues.apache.org/jira/browse/HDFS-6279    Author: Haohui Mai, 2014-07-10, 02:30
[HDFS-5321] Clean up the HTTP-related configuration in HDFS - HDFS - [issue]
...Currently there are multiple configuration keys that control the ports that the NameNode and DataNode listen to, and the default ports that the hftp/webhdfs clients are connecting to.Below i...
http://issues.apache.org/jira/browse/HDFS-5321    Author: Haohui Mai, 2014-07-07, 19:51
[HDFS-5891] webhdfs should not try connecting the DN during redirection - HDFS - [issue]
...When the webhdfs server in NN serves an OPEN request, the NN will eventually redirect the request to a DN. The current implementation intends to choose the active DNs. The code always connec...
http://issues.apache.org/jira/browse/HDFS-5891    Author: Haohui Mai, 2014-07-02, 00:18
[HDFS-6562] Refactor rename() in FSDirectory - HDFS - [issue]
...Currently there are two variants of rename() sitting in FSDirectory. Both implementation shares quite a bit of common code.This jira proposes to clean up these two variants and extract the c...
http://issues.apache.org/jira/browse/HDFS-6562    Author: Haohui Mai, 2014-06-24, 16:16
[HDFS-6583] Remove clientNode in FileUnderConstructionFeature - HDFS - [issue]
...FileUnderConstructionFeature contains two fields clientMachine and clientNode. clientNode keeps a reference of a DatanodeDescriptor. The reference be recomputed by consulting DatanodeManager...
http://issues.apache.org/jira/browse/HDFS-6583    Author: Haohui Mai, 2014-06-22, 14:46
[HDFS-6557] Move the reference of fsimage to FSNamesystem - HDFS - [issue]
...Per the suggestion from HDFS-6480. FSDirectory becomes a in-memory data structure so that the reference of fsimage should be moved to FSNamesystem....
http://issues.apache.org/jira/browse/HDFS-6557    Author: Haohui Mai, 2014-06-21, 16:19
[HDFS-6480] Move waitForReady() from FSDirectory to FSNamesystem - HDFS - [issue]
...Currently FSDirectory implements a barrier in waitForReady() / setReady() so that it only serve requests once the FSImage is fully loaded.As a part of the effort to evolve FSDirectory to a c...
http://issues.apache.org/jira/browse/HDFS-6480    Author: Haohui Mai, 2014-06-19, 16:17
[HDFS-6566] Separate public and private keys in DFSConfigKey - HDFS - [issue]
...DFSConfigKey contains both public and private keys. There is no clear clarification on whether a key should be public and stable.This jira proposes to separate the public and stable keys in ...
http://issues.apache.org/jira/browse/HDFS-6566    Author: Haohui Mai, 2014-06-19, 04:23
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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