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Re: Thinking ahead - MapReduce - [mail # dev]
...Reference:http://mail-archives.apache.org/mod_mbox/hadoop-common-dev/201401.mbox/%3CCAJS6+b4TKuPVqfaoRf_314XvEiVrYQy-VtRYD8+[EMAIL PROTECTED]%3EThis is of course open source, and I have neit...
   Author: Sandy Ryza, 2014-04-14, 03:47
[MAPREDUCE-5464] Add analogs of the SLOTS_MILLIS counters that jive with the YARN resource model - MapReduce - [issue]
...Per discussion on MAPREDUCE-5311, it would be good to have analogs for SLOTS_MILLIS that better fit the MR2 resource model....
http://issues.apache.org/jira/browse/MAPREDUCE-5464    Author: Sandy Ryza, 2014-04-11, 18:24
[MAPREDUCE-5351] JobTracker memory leak caused by CleanupQueue reopening FileSystem - MapReduce - [issue]
...When a job is completed, closeAllForUGI is called to close all the cached FileSystems in the FileSystem cache.  However, the CleanupQueue may run after this occurs and call FileSystem.g...
http://issues.apache.org/jira/browse/MAPREDUCE-5351    Author: Sandy Ryza, 2014-04-08, 08:15
Re: [VOTE] Release Apache Hadoop 2.4.0 - MapReduce - [mail # dev]
...While the Scheduler Load Simulator isn't part of YARN's core, it's a toolthat YARN includes, and it's broken entirely in the current RC.  YARN-1726seems to me like something worth inclu...
   Author: Sandy Ryza, 2014-04-03, 19:46
[MAPREDUCE-5759] Remove unnecessary conf load in Limits - MapReduce - [issue]
...This is a continuation if MAPREDUCE-5487....
http://issues.apache.org/jira/browse/MAPREDUCE-5759    Author: Sandy Ryza, 2014-04-01, 14:57
Re: Thinking ahead to 2.4 - MapReduce - [mail # dev]
...Looking forward to the release.  What's the state of the applicationhistory server?  Do we have security, documentation, and are APIs stable? If not, do we have a plan for how...
   Author: Sandy Ryza, 2014-03-20, 19:29
[MAPREDUCE-5338] Bring back mapred.child.ulimit - MapReduce - [issue]
...In MR1, a ulimit could be set for MapReduce child processes.  For parity, this would be good to have in MR2 as well....
http://issues.apache.org/jira/browse/MAPREDUCE-5338    Author: Sandy Ryza, 2014-03-12, 18:31
[MAPREDUCE-5665] Add audience annotations to MiniMRYarnCluster and MiniMRCluster - MapReduce - [issue]
...We should make it clear whether these are public interfaces....
http://issues.apache.org/jira/browse/MAPREDUCE-5665    Author: Sandy Ryza, 2014-02-28, 14:51
[MAPREDUCE-5457] Add a KeyOnlyTextOutputReader to enable streaming to write out text files without separators - MapReduce - [issue]
...MR jobs sometimes want to just output lines of text, not key/value pairs.  TextOutputFormat handles this by, if a null value is given, outputting only the key with no separator.  S...
http://issues.apache.org/jira/browse/MAPREDUCE-5457    Author: Sandy Ryza, 2014-02-24, 20:58
[MAPREDUCE-5487] In task processes, JobConf is unnecessarily loaded again in Limits - MapReduce - [issue]
...Limits statically loads a JobConf, which incurs costs of reading files from disk and parsing XML.  The contents of this JobConf are identical to the one loaded by YarnChild (before addi...
http://issues.apache.org/jira/browse/MAPREDUCE-5487    Author: Sandy Ryza, 2014-02-24, 20:58
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