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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-3191] docs for map output compression incorrectly reference SequenceFile - MapReduce - [issue]
...The documentation currently says that map output compression uses SequenceFile compression. This hasn't been true in several years, since we use IFile for intermediate data now....
http://issues.apache.org/jira/browse/MAPREDUCE-3191    Author: Todd Lipcon, 2014-04-17, 16:02
Error security.UserGroupInformation: PriviledgedActionException - MapReduce - [mail # dev]
...Hi, Whenever i m trying to execute a map reduce job to write to Hbase table im getting the following error in the console. I am running the MR job fromthe user account.ERROR security.Us...
   Author: Knowledge gatherer, 2014-04-17, 14:17
[MAPREDUCE-3286] Unit tests for MAPREDUCE-3186 - User jobs are getting hanged if the Resource manager process goes down and comes up while job is getting executed. - MapReduce - [issue]
...If the resource manager is restarted while the job execution is in progress, the job is getting hanged.UI shows the job as running.In the RM log, it is throwing an error "ERROR org.apache.ha...
http://issues.apache.org/jira/browse/MAPREDUCE-3286    Author: Eric Payne, 2014-04-17, 14:12
[MAPREDUCE-4711] Append time elapsed since job-start-time for finished tasks - MapReduce - [issue]
...In 0.20.x/1.x, the analyze job link gave this informationThe last Map task task_<sometask> finished at (relative to the Job launch time): 5/10 20:23:10 (1hrs, 27mins, 54sec)The time it...
http://issues.apache.org/jira/browse/MAPREDUCE-4711    Author: Ravi Prakash, 2014-04-17, 10:27
[MAPREDUCE-5839] Provide a boolean switch to enable LazyOutputFormat - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5839    Author: Gera Shegalov, 2014-04-17, 06:02
Re: Update interval of default counters - MapReduce - [mail # dev]
...I'm thinking the reason for hard-coding is to protect Hadoop clusterfrom high network traffic. If the value is too small, there aretoo many network traffic between Map/Reduce tasks and MRApp...
   Author: Akira AJISAKA, 2014-04-17, 05:02
[MAPREDUCE-5833] TestRMContainerAllocator fails ocassionally - MapReduce - [issue]
...testReportedAppProgress and testReportedAppProgressWithOnlyMaps have race conditions.Stacktracejava.util.NoSuchElementException: null at java.util.Collections$EmptyIterator.next(Collections....
http://issues.apache.org/jira/browse/MAPREDUCE-5833    Author: Zhijie Shen, 2014-04-17, 00:06
[MAPREDUCE-3825] MR should not be getting duplicate tokens for a MR Job. - MapReduce - [issue]
...This is the counterpart to HADOOP-7967.  MR gets tokens for all input, output and the default filesystem when a MR job is submitted. The APIs in FileSystem make it challenging to avoid ...
http://issues.apache.org/jira/browse/MAPREDUCE-3825    Author: Daryn Sharp, 2014-04-16, 23:04
[MAPREDUCE-3704] Yarn client goes into tight loop upon connection failure - MapReduce - [issue]
...If the client fails to connect to the AM or HS, it will go into a tight loop retrying the connection.  The log rapidly grows with multiple log lines per attempt.  Based one of the ...
http://issues.apache.org/jira/browse/MAPREDUCE-3704    Author: Daryn Sharp, 2014-04-16, 22:22
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