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[HDFS-3676] handleSaslConnection failure doesn't try to renew the correct UGI - HDFS - [issue]
...Client.java has this code:    private synchronized void handleSaslConnectionFailure(        final int currRetries, final int maxRetries, final Excepti...
http://issues.apache.org/jira/browse/HDFS-3676    Author: Colin Patrick McCabe, 2013-08-29, 20:02
[HDFS-5051] Propagate cache status information from the DataNode to the NameNode - HDFS - [issue]
...The DataNode needs to inform the NameNode of its current cache state. Let's wire up the RPCs and stub out the relevant methods on the DN and NN side....
http://issues.apache.org/jira/browse/HDFS-5051    Author: Colin Patrick McCabe, 2013-08-24, 04:43
[HDFS-5052] Add cacheRequest/uncacheRequest support to NameNode - HDFS - [issue]
...Add cacheRequest/uncacheRequest/listCacheRequest support to DFSAdmin and NameNode.  Maintain a list of active CachingRequests on the NameNode....
http://issues.apache.org/jira/browse/HDFS-5052    Author: Colin Patrick McCabe, 2013-08-24, 04:42
[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
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