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[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
[HDFS-3579] libhdfs: fix exception handling - HDFS - [issue]
...libhdfs does not consistently handle exceptions.  Sometimes we don't free the memory associated with them (memory leak).  Sometimes we invoke JNI functions that are not supposed to...
http://issues.apache.org/jira/browse/HDFS-3579    Author: Colin Patrick McCabe, 2013-07-12, 23:54
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB