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Re: issue about namenode format command - MapReduce - [mail # user]
...Looks like the doc's on apache are missing this info.  Format in Hadoop 2 supports the following options  -format [-clusterid cid ] [-force] [-nonInteractive]   -nonInteractiv...
   Author: Arpit Gupta, 2013-10-23, 14:54
Re: [VOTE] Release Apache Hadoop 2.2.0 - MapReduce - [mail # dev]
...+1 (non binding)  Ran secure and non secure multi node clusters and tested HA and RM recovery tests.  Arpit Gupta Hortonworks Inc. http://hortonworks.com/  On Oct 7, 2013, at ...
   Author: Arpit Gupta, 2013-10-10, 17:06
[MAPREDUCE-5565] job clean up fails on secure cluster as the file system is not created in the context of the ugi running the job - MapReduce - [issue]
...On secure clusters we see the following exceptions in the jt log2013-10-04 04:52:31,753 ERROR org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:tt/host@REALM cau...
http://issues.apache.org/jira/browse/MAPREDUCE-5565    Author: Arpit Gupta, 2013-10-10, 00:22
[MAPREDUCE-5488] Job recovery fails after killing all the running containers for the app - MapReduce - [issue]
...Here is the client stack traceRUNNING: /usr/lib/hadoop/bin/hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples-2.1.0.2.0.5.0-66.jar wordcount "-Dmapreduce.reduce.input.limit=-1" /...
http://issues.apache.org/jira/browse/MAPREDUCE-5488    Author: Arpit Gupta, 2013-09-25, 00:06
[MAPREDUCE-5474] Add support for mapreduce.reduce.input.limit in MR2 - MapReduce - [issue]
...In MR1 we could set mapreduce.reduce.input.limit to control the reduce input limit and it defaults to -1 meaning no limit.There is no such property in MR2...
http://issues.apache.org/jira/browse/MAPREDUCE-5474    Author: Arpit Gupta, 2013-08-21, 18:33
[MAPREDUCE-3097] archive does not archive if the content specified is a file - MapReduce - [issue]
...archive command only archives directories. when the content specified is a file it proceeds with the archive job but does not archive the content this can be misleading as the user might thi...
http://issues.apache.org/jira/browse/MAPREDUCE-3097    Author: Arpit Gupta, 2013-07-02, 00:37
[MAPREDUCE-5354] some job submission fail when one of the configured local disks on jt is read only - MapReduce - [issue]
...Following exception is seen in the jt2013-06-25 06:58:26,988 INFO org.apache.hadoop.mapred.JobTracker: jobToken generated and stored with users keys in /mapred/system/job_201306250645_0002/j...
http://issues.apache.org/jira/browse/MAPREDUCE-5354    Author: Arpit Gupta, 2013-06-26, 00:49
Re: How can we download a file using WebHDFS REST API - MapReduce - [mail # user]
...you will have to use the open operation to read the file and save it.  http://hadoop.apache.org/docs/r2.0.3-alpha/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#Open_and_Read_a_File  ...
   Author: Arpit Gupta, 2013-05-31, 16:53
[MAPREDUCE-5169] Job recovery fails if job tracker is restarted after the job is submitted but before its initialized - MapReduce - [issue]
...This was noticed when within 5 seconds of submitting a word count job, the job tracker was restarted. Upon restart the job failed to recover...
http://issues.apache.org/jira/browse/MAPREDUCE-5169    Author: Arpit Gupta, 2013-05-06, 05:21
[MAPREDUCE-5198] Race condition in cleanup during task tracker renint with LinuxTaskController - MapReduce - [issue]
...This was noticed when job tracker would be restarted while jobs were running and would ask the task tracker to reinitialize. Tasktracker would fail with an error like013-04-27 20:19:09,627 I...
http://issues.apache.org/jira/browse/MAPREDUCE-5198    Author: Arpit Gupta, 2013-05-01, 22:25
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