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[MAPREDUCE-4649] mr-jobhistory-daemon.sh needs to be updated post YARN-1 - MapReduce - [issue]
...Even today, JHS is assuming that YARN_HOME will be same as HADOOP_MAPRED_HOME besides other such assumptions. We need to fix it....
http://issues.apache.org/jira/browse/MAPREDUCE-4649    Author: Vinod Kumar Vavilapalli, 2013-08-29, 17:47
Re: [yarn] job is not getting assigned - MapReduce - [mail # user]
...This usually means there are no available resources as seen by the ResourceManager. Do you see "Active Nodes" on the RM web UI first page? If not, you'll have to check the NodeManager logs t...
   Author: Vinod Kumar Vavilapalli, 2013-08-29, 17:36
[MAPREDUCE-5239] Update MR App to reflect YarnRemoteException changes after YARN-634 - MapReduce - [issue]
...YARN-634 is making YarnRemoteException to be not backed by PB anymore. Need some MR changes because of that. Tracking MR changes from the patch at YARN-634....
http://issues.apache.org/jira/browse/MAPREDUCE-5239    Author: Vinod Kumar Vavilapalli, 2013-08-27, 23:22
[MAPREDUCE-5480] TestJSHSecurity.testDelegationToken is breaking after YARN-1085 - MapReduce - [issue]
...See https://builds.apache.org/job/PreCommit-YARN-Build/1755//testReport/.org.apache.hadoop.yarn.webapp.WebAppException: Error starting http server at org.apache.hadoop.yarn.webapp.WebApps$Bu...
http://issues.apache.org/jira/browse/MAPREDUCE-5480    Author: Vinod Kumar Vavilapalli, 2013-08-27, 18:32
Re: Proxying FileSystem.get() - MapReduce - [mail # dev]
...Not sure about your final intention, but a new FileSystem impl wrapping/composing the underlying file system should work. No?  Thanks, +Vinod  On Aug 16, 2013, at 11:08 AM, Jay Vya...
   Author: Vinod Kumar Vavilapalli, 2013-08-16, 19:24
[MAPREDUCE-5256] CombineInputFormat isn't thread safe affecting HiveServer - MapReduce - [issue]
...This was originally fixed as part of MAPREDUCE-5038, but that got reverted now. Which uncovers this issue, breaking HiveServer. Originally reported by Thejas M Nair....
http://issues.apache.org/jira/browse/MAPREDUCE-5256    Author: Vinod Kumar Vavilapalli, 2013-08-04, 09:23
Re: Abstraction layer to support both YARN and Mesos - MapReduce - [mail # dev]
...What I thought was the original proposal was to use the existing MR client+AM+task code to run on top of Mesos. And like Steve mentioned, today all of it is very tightly couple with YARN API...
   Author: Vinod Kumar Vavilapalli, 2013-07-31, 16:45
[MAPREDUCE-5424] TestNonExistentJob failing after YARN-873 - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5424    Author: Vinod Kumar Vavilapalli, 2013-07-26, 20:10
[expand - 1 more] - Re: Only log.index - MapReduce - [mail # user]
...Ah, I should've guessed that. You seem to have JVM reuse enabled. Even if JVMs are reused, all the tasks write to the same files as they share the JVM. They only have different index files. ...
   Author: Vinod Kumar Vavilapalli, 2013-07-24, 06:40
[expand - 1 more] - Re: How are 'PHYSICAL_MEMORY_BYTES' and 'VIRTUAL_MEMORY_BYTES' calculated? - MapReduce - [mail # user]
...The snapshotting stops much before the actual JVM exits - when a map/reduce task is deemed done, the metric collection stops. The JVM exits a little later.  Thanks, +Vinod  On Jul ...
   Author: Vinod Kumar Vavilapalli, 2013-07-13, 00:11
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NEW: Monitor These Apps!
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