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[HDFS-5050] Add DataNode support for mlock and munlock - HDFS - [issue]
...Add DataNode support for mlock and munlock.  The DataNodes should respond to RPCs telling them to mlock and munlock blocks.  Blocks should be uncached when the NameNode asks for th...
http://issues.apache.org/jira/browse/HDFS-5050    Author: Colin Patrick McCabe, 2013-08-24, 04:41
[HDFS-5101] ZCR should work with blocks bigger than 2 GB - HDFS - [issue]
...Zero-copy reads should work with blocks bigger than 2 GB.  This will a little tricky, because a single ByteBuffer can only span 2 GB in Java (due to the use of a signed 4-byte int for s...
http://issues.apache.org/jira/browse/HDFS-5101    Author: Colin Patrick McCabe, 2013-08-15, 21:54
[HDFS-4870] periodically re-resolve hostnames in included and excluded datanodes list - HDFS - [issue]
...We currently only resolve the hostnames in the included and excluded datanodes list once-- when the list is read.  The rationale for this is that in big clusters, DNS resolution for tho...
http://issues.apache.org/jira/browse/HDFS-4870    Author: Colin Patrick McCabe, 2013-08-05, 20:14
[HDFS-5062] org.apache.hadoop.fs.Df should not use bash -c - HDFS - [issue]
...org.apache.hadoop.fs.Df shouldn't use bash -c.  The only reason why it is using it right now is to combine stderr and stdout, something that can be done easily from Java.bash may not be...
http://issues.apache.org/jira/browse/HDFS-5062    Author: Colin Patrick McCabe, 2013-08-02, 23:02
[HDFS-5021] FSShell delete and FSShell rename should operate on symlinks, not their targets - HDFS - [issue]
...Currently FSShell delete and FSShell rename don't behave as expected on symlinks.  If you have /a/b/c as a link to /a/b/d, and you try to delete /a/b/c, the target /a/b/d will be delete...
http://issues.apache.org/jira/browse/HDFS-5021    Author: Colin Patrick McCabe, 2013-08-02, 19:35
[HDFS-5048] FileSystem#globStatus and FileContext#globStatus need to work with symlinks - HDFS - [issue]
...FileSystem#globStatus and FileContext#globStatus need to work with symlinks.  Currently, they resolve all links, so that if you have:/alpha/beta/alphaLink -> alphaand you take globSt...
http://issues.apache.org/jira/browse/HDFS-5048    Author: Colin Patrick McCabe, 2013-07-31, 22:46
Re: non-local map task input - HDFS - [mail # dev]
...Try looking at DFSOutputStream / DFSInputStream.  Sent from a mobile device  Colin On Jul 21, 2013 8:41 PM, "Grandl Robert"  wrote:  ...
   Author: Colin Patrick McCabe, 2013-07-25, 23:46
[HDFS-4950] newly created files in fuse_dfs appear to be length 0 for a while due to attribute caching - HDFS - [issue]
...For some reason, newly created files in fuse_dfs appear to be length 0 for a while.cmccabe@keter:~> echo hi > hicmccabe@keter:~> mv hi /mnt/tmp/hicmccabe@keter:~> ls -l /mnt/tmpt...
http://issues.apache.org/jira/browse/HDFS-4950    Author: Colin Patrick McCabe, 2013-07-21, 23:12
[HDFS-4957] NameNode failover should not fail because a DNS entry for a quorum node cannot be resolved - HDFS - [issue]
...When a StandbyNameNode is becoming active, we should not bail out because a DNS entry for a quorum node cannot be resolved.  Currently it does fail in this scenario, with a message like...
http://issues.apache.org/jira/browse/HDFS-4957    Author: Colin Patrick McCabe, 2013-07-19, 02:07
[HDFS-3994] misleading comment in CommonConfigurationKeysPublic - HDFS - [issue]
...CommonConfigurationKeysPublic contains a potentially misleading comment:/**  * This class contains constants for configuration keys used * in the common code. * * It incl...
http://issues.apache.org/jira/browse/HDFS-3994    Author: Colin Patrick McCabe, 2013-07-17, 18:40
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