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[HDFS-5825] Use FileUtils.copyFile() to implement DFSTestUtils.copyFile() - HDFS - [issue]
...DFSTestUtils.copyFile() is implemented by copying data through FileInputStream / FileOutputStream. Apache Common IO provides FileUtils.copyFile(). It uses FileChannel which is more efficient...
http://issues.apache.org/jira/browse/HDFS-5825    Author: Haohui Mai, 2014-01-28, 13:40
[HDFS-5231] Fix broken links in the document of HDFS Federation - HDFS - [issue]
...The image links in the documents are broken.http://hadoop.apache.org/docs/r2.1.0-beta/hadoop-project-dist/hadoop-hdfs/Federation.htmlIt seems that these images are in YARN. These images need...
http://issues.apache.org/jira/browse/HDFS-5231    Author: Haohui Mai, 2014-01-28, 07:22
[HDFS-5826] Update the stored edit logs to be consistent with the changes in HDFS-5698 branch - HDFS - [issue]
...HDFS-5698 bumps the LayoutVersion to indicate whether the file is in new format. The stored edit logs have to be updated in order to pass testOfflineEditsViewer....
http://issues.apache.org/jira/browse/HDFS-5826    Author: Haohui Mai, 2014-01-27, 18:37
[HDFS-5771] Track progress when loading fsimage - HDFS - [issue]
...The old code that loads the fsimage tracks the progress during loading. This jira proposes to implement the same functionality in the new code which serializes the fsimage using protobuf.....
http://issues.apache.org/jira/browse/HDFS-5771    Author: Haohui Mai, 2014-01-24, 18:40
[HDFS-5808] Implement cancellation when saving FSImage - HDFS - [issue]
...The code should be able to cancel the progress of saving fsimage / checkpointing. When fail over happens, the code needs to timely cancel the checkpoint operations so that the fail over sequ...
http://issues.apache.org/jira/browse/HDFS-5808    Author: Haohui Mai, 2014-01-23, 20:30
[HDFS-5744] Serialize information for token managers in protobuf - HDFS - [issue]
...This jira proposes to serialize the information related to delegation token, namely the state of the secret manager in protobuf....
http://issues.apache.org/jira/browse/HDFS-5744    Author: Haohui Mai, 2014-01-21, 02:01
[HDFS-5774] Serialize CachePool directives in protobuf - HDFS - [issue]
...This jira proposes to implement serialize cache pool directives in protobuf....
http://issues.apache.org/jira/browse/HDFS-5774    Author: Haohui Mai, 2014-01-21, 01:18
[HDFS-5725] Remove compression support from FSImage - HDFS - [issue]
...As proposed in HDFS-5722, this jira removes the support of compression in the FSImage format....
http://issues.apache.org/jira/browse/HDFS-5725    Author: Haohui Mai, 2014-01-21, 01:10
[HDFS-5722] Implement compression in the HTTP server of SNN / SBN instead of FSImage - HDFS - [issue]
...The current FSImage format support compression, there is a field in the header which specifies the compression codec used to compress the data in the image. The main motivation was to reduce...
http://issues.apache.org/jira/browse/HDFS-5722    Author: Haohui Mai, 2014-01-21, 01:09
[HDFS-5743] Use protobuf to serialize snapshot information - HDFS - [issue]
...This jira tracks the efforts of using protobuf to serialize snapshot-related information in FSImage....
http://issues.apache.org/jira/browse/HDFS-5743    Author: Haohui Mai, 2014-01-21, 00:57
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