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[HDFS-6212] Deprecate the BackupNode and CheckpointNode from branch-2 - HDFS - [issue]
...As per discussion in HDFS-4114, this jira tries to deprecate BackupNode from branch-2 and change the hadoop start/stop scripts to print deprecation warning....
http://issues.apache.org/jira/browse/HDFS-6212    Author: Jing Zhao, 2014-07-03, 06:28
[HDFS-6229] Race condition in failover can cause RetryCache fail to work - HDFS - [issue]
...Currently when NN failover happens, the old SBN first sets its state to active, then starts the active services (including tailing all the remaining editlog and building a complete retry cac...
http://issues.apache.org/jira/browse/HDFS-6229    Author: Jing Zhao, 2014-06-30, 09:18
[HDFS-6593] Move SnapshotDiffInfo out of INodeDirectorySnapshottable - HDFS - [issue]
...Per discussion in HDFS-4667, we can move SnapshotDiffInfo out of INodeDirectorySnapshottable as an individual class....
http://issues.apache.org/jira/browse/HDFS-6593    Author: Jing Zhao, 2014-06-25, 17:17
[HDFS-5714] Use byte array to represent UnderConstruction feature and Snapshot feature for INodeFile - HDFS - [issue]
...Currently we define specific classes to represent different INode features, such as FileUnderConstructionFeature and FileWithSnapshotFeature. While recording these feature information in mem...
http://issues.apache.org/jira/browse/HDFS-5714    Author: Jing Zhao, 2014-06-20, 22:39
[HDFS-6551] Rename with OVERWRITE option may throw NPE when the target file/directory is a reference INode - HDFS - [issue]
...The following steps can reproduce the NPE:1. create a snapshot on /2. move /foo/file1 to /bar/3. rename /foo/file2 to /bar/file1 with the OVERWRITE optionAfter step 2, /bar/file1 is a DstRef...
http://issues.apache.org/jira/browse/HDFS-6551    Author: Jing Zhao, 2014-06-19, 16:17
[HDFS-6423] Diskspace quota usage should be updated when appending data to partial block - HDFS - [issue]
...When appending new data to a file whose last block is a partial block, the diskspace quota usage is not correctly update. For example, suppose the block size is 1024 bytes, and a file has si...
http://issues.apache.org/jira/browse/HDFS-6423    Author: Jing Zhao, 2014-06-19, 11:00
Re: HDFS-6376 - HDFS - [mail # dev]
...Hi Dave,    The Jenkins only runs against trunk. Thus you need to upload a patchfor trunk instead of 2.4.Thanks,-JingOn Wed, May 28, 2014 at 11:28 AM,  wrote:CONFIDENTIAL...
   Author: Jing Zhao, 2014-05-28, 18:35
[HDFS-6227] ShortCircuitCache#unref should purge ShortCircuitReplicas whose streams have been closed by java interrupts - HDFS - [issue]
...While running tests in a single node cluster, where short circuit read is enabled and multiple threads may read the same file concurrently, one of the read got ClosedChannelException and fai...
http://issues.apache.org/jira/browse/HDFS-6227    Author: Jing Zhao, 2014-05-28, 16:16
[HDFS-6438] DeleteSnapshot should be a DELETE request in WebHdfs - HDFS - [issue]
...We add 3 snapshot related APIs into WebHdfs in HDFS-6432, among which DeleteSnapshot should be a DELETE request instead of PUT. This jira aims to fix this and update the WebHdfs document....
http://issues.apache.org/jira/browse/HDFS-6438    Author: Jing Zhao, 2014-05-23, 20:53
[HDFS-6420] DFSAdmin#refreshNodes should be sent to both NameNodes in HA setup - HDFS - [issue]
...Currently in HA setup (with logical URI), the DFSAdmin#refreshNodes command is sent to the NameNode first specified in the configuration by default. Users can use "-fs" option to specify whi...
http://issues.apache.org/jira/browse/HDFS-6420    Author: Jing Zhao, 2014-05-20, 00:15
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