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[MAPREDUCE-1126] shuffle should use serialization to get comparator - MapReduce - [issue]
...Currently the key comparator is defined as a Java class.  Instead we should use the Serialization API to create key comparators.  This would permit, e.g., Avro-based comparators to...
http://issues.apache.org/jira/browse/MAPREDUCE-1126    Author: Doug Cutting, 2014-07-29, 19:56
[MAPREDUCE-392] streaming and pipes should reuse jvm's by default - MapReduce - [issue]
...With HADOOP-249, tasks can now reuse JVMs.  Pipes and streaming run little user code in their JVMs and should generally benefit from JVM reuse.  Thus I propose we change the defaul...
http://issues.apache.org/jira/browse/MAPREDUCE-392    Author: Doug Cutting, 2014-07-21, 17:55
[MAPREDUCE-212] want InputFormat for task logs - MapReduce - [issue]
...We should provide an InputFormat implementation that includes all the task logs from a job. Folks should be able to do something like:job = new JobConf();job.setInputFormatClass(TaskLogInput...
http://issues.apache.org/jira/browse/MAPREDUCE-212    Author: Doug Cutting, 2014-07-18, 06:06
[MAPREDUCE-224] limit running tasks per job - MapReduce - [issue]
...It should be possible to specify a limit to the number of tasks per job permitted to run simultaneously.  If, for example, you have a cluster of 50 nodes, with 100 map task slots and 10...
http://issues.apache.org/jira/browse/MAPREDUCE-224    Author: Doug Cutting, 2014-07-17, 20:38
[MAPREDUCE-265] check permissions for job inputs and outputs - MapReduce - [issue]
...On job submission, filesystem permissions should be checked to ensure that the input directory is readable and that the output directory is writable....
http://issues.apache.org/jira/browse/MAPREDUCE-265    Author: Doug Cutting, 2014-07-17, 20:25
[MAPREDUCE-210] want InputFormat for zip files - MapReduce - [issue]
...HDFS is inefficient with large numbers of small files.  Thus one might pack many small files into large, compressed, archives.  But, for efficient map-reduce operation, it is desir...
http://issues.apache.org/jira/browse/MAPREDUCE-210    Author: Doug Cutting, 2014-07-17, 18:47
Re: Re-swizzle 2.3 - MapReduce - [mail # dev]
...On Wed, Jan 29, 2014 at 12:30 PM, Jason Lowe  wrote:>  It is a bit concerning that the JIRA history showed that the target version> was set at some point in the past but no r...
   Author: Doug Cutting, 2014-01-29, 21:21
Re: Upgrade to protobuf 2.5.0 for the 2.1.0 release, HADOOP-9845 - MapReduce - [mail # dev]
...On Fri, Aug 9, 2013 at 1:15 PM, Alejandro Abdelnur  wrote:  Have you asked on builds@ or filed an INFRA Jira issue or asked on #asfinfra?  http://wiki.apache.org/general/Jenki...
   Author: Doug Cutting, 2013-08-09, 21:28
Re: [RESULT] - [VOTE] Rename hadoop branches post hadoop-1.x - MapReduce - [mail # dev]
...On 03/28/2012 12:39 PM, Owen O'Malley wrote:  I thought these were community decisions, not RM decisions, no?  http://s.apache.org/rm  Doug...
   Author: Doug Cutting, 2012-03-29, 00:11
Re: 0.23 & trunk tars, we'll we publishing 1 tar per component or a single tar? What about source tar? - MapReduce - [mail # dev]
...On 10/12/2011 09:07 AM, Alejandro Abdelnur wrote:  All that is required for a release is a single source TAR.  As an open-source project our product is source code.  We may al...
   Author: Doug Cutting, 2011-10-12, 17:28
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