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[MAPREDUCE-4931] Add user-APIs for classpath precedence control - MapReduce - [issue]
...The feature config from MAPREDUCE-1938 of allowing tasks to start with user-classes-first is fairly popular and can use its own API hooks in Job/JobConf classes, making it easier to discover...
http://issues.apache.org/jira/browse/MAPREDUCE-4931    Author: Harsh J, 2014-04-17, 18:53
[MAPREDUCE-4424] The 'mapred job -list' command should show the job name as well - MapReduce - [issue]
...Currently the mapred job -list command does not show the Job Name, just the Job ID. It would be good to display the Job name too. Idea originally from HADOOP-5555....
http://issues.apache.org/jira/browse/MAPREDUCE-4424    Author: Harsh J, 2014-03-28, 14:45
[MAPREDUCE-4253] Tests for mapreduce-client-core are lying under mapreduce-client-jobclient - MapReduce - [issue]
...Many of the tests for client libs from mapreduce-client-core are lying under mapreduce-client-jobclient.We should investigate if this is the right thing to do and if not, move the tests back...
http://issues.apache.org/jira/browse/MAPREDUCE-4253    Author: Harsh J, 2014-02-24, 20:40
Re: How to process part of a file in Hadoop? - MapReduce - [mail # dev]
...You can write a custom InputFormat whose #getSplits(...) returns yourrequired InputSplit objects (with randomised offsets + lengths, etc.).On Fri, Feb 7, 2014 at 9:50 PM, Suresh S  wrot...
   Author: Harsh J, 2014-02-08, 04:55
[MAPREDUCE-3839] Improve the single node setup docs for MR - MapReduce - [issue]
...I'm gonna be recording all nits I can about the page at http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/SingleCluster.html here: The section at http://hadoop.apache...
http://issues.apache.org/jira/browse/MAPREDUCE-3839    Author: Harsh J, 2014-01-31, 05:30
Re: how to set org.apache.hadoop classpath? - MapReduce - [mail # dev]
...The imports referenced in your error come from the hadoop-common jar,and won't be present in the hadoop-mapreduce-client-core jar.The most ideal way to set your compile classpath would be to...
   Author: Harsh J, 2014-01-27, 22:21
Re: How to start historyserver on all nodes automatically? - MapReduce - [mail # user]
...Hi,  You do not need to run an MR HistoryServer on all nodes. If you want "start-yarn.sh" to cover the history server startup you can also inject the command at its end.  On Tue, J...
   Author: Harsh J, 2014-01-21, 11:00
[MAPREDUCE-2584] Check for serializers early, and give out more information regarding missing serializers - MapReduce - [issue]
...As discussed on HADOOP-7328, MapReduce can handle serializers in a much better way in case of bad configuration, improper imports (Some odd Text class instead of the Writable Text set as key...
http://issues.apache.org/jira/browse/MAPREDUCE-2584    Author: Harsh J, 2014-01-20, 06:09
Re: Hadoop C++ HDFS test running Exception - MapReduce - [mail # user]
...I've found in past that the native code runtime somehow doesn't support wildcarded classpaths. If you add the jars explicitly to the CLASSPATH, your app will work. You could use a simple she...
   Author: Harsh J, 2014-01-14, 02:39
Re: Error in starting DFS - message says JAVA_HOME not set though the workstation has working java - MapReduce - [mail # user]
...You'll need to set JAVA_HOME under the $HADOOP_CONF_DIR/hadoop-env.sh explicitly. This variable is not a system global one.  On Fri, Jan 10, 2014 at 7:17 AM, srinivas  wrote:  ...
   Author: Harsh J, 2014-01-10, 04:22
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