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Re: Debug MR tasks impossible. - MapReduce - [mail # user]
...On 0.23 I usually breakpoint on DefaultContainerExecutor.java : 139. Modify the script mentioned in nmPrivateContainerScriptPath to include JAVA remote debugging options. Connect to the node...
   Author: Ravi Prakash, 2012-03-29, 16:09
Re: Debug MR tasks impossible. - MapReduce - [mail # user]
...Hi Pedro,  I know its sub-optimal but you should be able to put in as many System.out.println / log messages as you want and you should be able to see them in stdout, and syslog files. ...
   Author: Ravi Prakash, 2012-03-29, 16:06
[MAPREDUCE-4009] AM container log links need to be clicked twice to get to the actual log file - MapReduce - [issue]
...On the RM page->click on an application->Click on the link for "AM Container logs"This page contains links to stdout, stderr and syslog (i.e. <hostname>/node/containerlogs/contai...
http://issues.apache.org/jira/browse/MAPREDUCE-4009    Author: Ravi Prakash, 2012-03-16, 19:39
[MAPREDUCE-3963] NodeManagers die on startup if they can't connect to the RM - MapReduce - [issue]
...Steps to reproduce.Start the NM when the RM is down. The NM tries 10 times, then exits. It should keep trying forever....
http://issues.apache.org/jira/browse/MAPREDUCE-3963    Author: Ravi Prakash, 2012-03-05, 16:09
[MAPREDUCE-3712] The mapreduce tar does not contain the hadoop-mapreduce-client-jobclient-tests.jar. - MapReduce - [issue]
...Working MRv1 tests were moved into the maven build as part of MAPREDUCE-3582. Some classes like MRBench, SleepJob, FailJob which are essential for QE got moved to jobclient-tests.jar. Howeve...
http://issues.apache.org/jira/browse/MAPREDUCE-3712    Author: Ravi Prakash, 2012-03-05, 02:49
[MAPREDUCE-3596] Sort benchmark got hang after completion of 99% map phase - MapReduce - [issue]
...Courtesy Vinay Kumar ThotaRan sort benchmark couple of times and every time the job got hang after completion 99% map phase. There are some map tasks failed. Also it's not scheduled some of ...
http://issues.apache.org/jira/browse/MAPREDUCE-3596    Author: Ravi Prakash, 2012-03-05, 02:49
[MAPREDUCE-3614]  finalState UNDEFINED if AM is killed by hand - MapReduce - [issue]
...Courtesy David CapwellIf the AM is running and you kill the process (sudo kill #pid), the State in Yarn would be FINISHED and FinalStatus is UNDEFINED.  The Tracking UI would say "Histo...
http://issues.apache.org/jira/browse/MAPREDUCE-3614    Author: Ravi Prakash, 2012-03-04, 13:57
[MAPREDUCE-3087] CLASSPATH not the same after MAPREDUCE-2880 - MapReduce - [issue]
...After MAPREDUCE-2880, my classpath was missing key jar files....
http://issues.apache.org/jira/browse/MAPREDUCE-3087    Author: Ravi Prakash, 2012-02-20, 09:55
[MAPREDUCE-3620] GrimdMix Stats at the end of GridMix are not reported correctly - MapReduce - [issue]
...Courtesy Vinay Kumar ThotaJob trace contains 1205 jobs and Gridmix start processing 1200 jobs after processing. However, after completion ofgridmix run, execution summary details, it showed ...
http://issues.apache.org/jira/browse/MAPREDUCE-3620    Author: Ravi Prakash, 2012-02-10, 09:27
[MAPREDUCE-3476] Optimize YARN API calls - MapReduce - [issue]
...Several YARN API calls are taking inordinately long. This might be a performance blocker....
http://issues.apache.org/jira/browse/MAPREDUCE-3476    Author: Ravi Prakash, 2012-02-10, 00:41
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