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[HDFS-6864] Archival Storage: add documentation for the new migration tool - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6864    Author: Jing Zhao, 2014-08-18, 23:27
[HDFS-2856] Fix block protocol so that Datanodes don't require root or jsvc - HDFS - [issue]
...Since we send the block tokens unencrypted to the datanode, we currently start the datanode as root using jsvc and get a secure (< 1024) port.If we have the datanode generate a nonce and ...
http://issues.apache.org/jira/browse/HDFS-2856    Author: Owen OMalley, 2014-08-18, 23:17
[HDFS-6859] Allow dfs.data.transfer.protection default to hadoop.rpc.protection - HDFS - [issue]
...Currently administrator needs to configure both dfs.data.transfer.protection and hadoop.rpc.protection to specify QOP for rpc and data transfer protocols. In some cases, the values for these...
http://issues.apache.org/jira/browse/HDFS-6859    Author: Benoy Antony, 2014-08-18, 23:02
[HDFS-6664] HDFS permissions guide documentation states incorrect default group mapping class. - HDFS - [issue]
...The HDFS permissions guide states that our default group mapping class is org.apache.hadoop.security.ShellBasedUnixGroupsMapping.  This is no longer true.  The default has been cha...
http://issues.apache.org/jira/browse/HDFS-6664    Author: Chris Nauroth, 2014-08-18, 22:30
[HDFS-6846] NetworkTopology#sortByDistance should give nodes higher priority, which cache the block. - HDFS - [issue]
...Currently there are 3 weights: local same rack off rackBut if some nodes cache the block, then it's faster if client read block from these nodes. So we should have some more weights as follo...
http://issues.apache.org/jira/browse/HDFS-6846    Author: Yi Liu, 2014-08-18, 22:15
[expand - 7 more] - Re: [DISCUSS] Switch to log4j 2 - HDFS - [mail # dev]
...On Fri, Aug 15, 2014 at 8:50 AM, Aaron T. Myers  wrote:Yes, this is a great example of making something async withoutswitching logging frameworks.  +1 for doing that where it isapp...
   Author: Colin McCabe, 2014-08-18, 20:32
[HDFS-2049] Should add the column name tips for HDFS shell command - HDFS - [issue]
...:abc:root > bin/hadoop fs -count -q /ABC11/06/07 18:05:54 INFO security.Groups: Group mapping impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping; cacheTimeout=30000011/06/07 18:0...
http://issues.apache.org/jira/browse/HDFS-2049    Author: Denny Ye, 2014-08-18, 19:28
[HDFS-6801] Archival Storage: Add a new data migration tool - HDFS - [issue]
...The tool is similar to Balancer.  It periodic scans the blocks in HDFS and uses path and/or other meta data (e.g. mtime) to determine if a block should be cooled down (i.e. hot => wa...
http://issues.apache.org/jira/browse/HDFS-6801    Author: Tsz Wo Nicholas Sze, 2014-08-18, 18:52
[HDFS-6561] Byte array native checksumming on client side (Hadoop changes) - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6561    Author: James Thomas, 2014-08-18, 18:39
[HDFS-49] MiniDFSCluster.stopDataNode will always shut down a node in the cluster if a matching name is not found - HDFS - [issue]
...The stopDataNode method will shut down the last node in the list of nodes, if one matching a specific name is not foundThis is possibly not what was intended. Better to return false or fail ...
http://issues.apache.org/jira/browse/HDFS-49    Author: Steve Loughran, 2014-08-18, 18:05
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