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[MAPREDUCE-5130] Add missing job config options to mapred-default.xml - MapReduce - [issue]
...I came across that mapreduce.map.java.opts and mapreduce.reduce.java.opts were missing in mapred-default.xml.  I'll do a fuller sweep to see what else is missing before posting a patch....
http://issues.apache.org/jira/browse/MAPREDUCE-5130    Author: Sandy Ryza, 2014-12-25, 17:17
[MAPREDUCE-5596] Allow configuring the number of threads used to serve shuffle connections - MapReduce - [issue]
...MR1 had mapreduce.tasktracker.http.threads.  MR2 always uses the Netty default 2 * Runtime.availableProcessors().  We should make this configurable....
http://issues.apache.org/jira/browse/MAPREDUCE-5596    Author: Sandy Ryza, 2014-09-04, 00:35
[MAPREDUCE-5363] Fix doc and spelling for TaskCompletionEvent#getTaskStatus and getStatus - MapReduce - [issue]
...The doc for TaskCompletionEvent#get(Task)Status in both MR1 and MR2 isReturns enum Status.SUCESS or Status.FAILURE.@return task tracker statusThe actual values that the Status enum can take ...
http://issues.apache.org/jira/browse/MAPREDUCE-5363    Author: Sandy Ryza, 2014-09-03, 19:49
[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, 2014-08-15, 06:48
[MAPREDUCE-5896] InputSplits should indicate which locations have the block cached in memory - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5896    Author: Sandy Ryza, 2014-08-15, 06:47
[MAPREDUCE-5185] When log aggregation not enabled, message should point to NM HTTP port, not IPC port - MapReduce - [issue]
...When I try to get a container's logs in the JHS without log aggregation enabled, I get a message that looks like this:"Aggregation is not enabled. Try the nodemanager at sandy-ThinkPad-T530:...
http://issues.apache.org/jira/browse/MAPREDUCE-5185    Author: Sandy Ryza, 2014-07-10, 22:22
Re: Where is the map input transfered to the 'map worker'/container? - MapReduce - [mail # dev]
...Hi Christian,I'm not sure the exact code path, but HDFS, not MapReduce, is in charge ofgetting the bytes from the remote node.-SandyOn Mon, Jun 23, 2014 at 1:57 AM, Christian Grote <[EMAI...
   Author: Sandy Ryza, 2014-07-07, 04:37
[MAPREDUCE-4951] Container preemption interpreted as task failure - MapReduce - [issue]
...When YARN reports a completed container to the MR AM, it always interprets it as a failure.  This can lead to a job failing because too many of its tasks failed, when in fact they only ...
http://issues.apache.org/jira/browse/MAPREDUCE-4951    Author: Sandy Ryza, 2014-05-21, 22:30
[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
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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