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[MAPREDUCE-2982] App/Tasks progress is showing as 0% in UI even if successfully completed - MapReduce - [issue]
...Application/Tasks progress is showing as 0% in UI even if successfully completed as shown in the attached screen shots....
http://issues.apache.org/jira/browse/MAPREDUCE-2982    Author: Devaraj K, 2011-09-23, 09:38
RE: Using HADOOP for Processing Videos - MapReduce - [mail # user]
...Hi Rajen,                 You can write a mapred application, which uses the customized InputFormat and OutputFormat(If you want to produce output as ...
   Author: Devaraj K, 2011-09-20, 05:00
[MAPREDUCE-2983] All tasks are failing due to invalid shuffle port number - MapReduce - [issue]
...2011-09-12 18:43:10,361 INFO  mapreduce.Job (Job.java:printTaskEvents(1227)) - Task Id : attempt_1315831998314_0007_r_000000_0, Status : FAILEDContainer launch failed for container_1315...
http://issues.apache.org/jira/browse/MAPREDUCE-2983    Author: Devaraj K, 2011-09-14, 09:22
[MAPREDUCE-2656] Map Reduce Tasks are continously failing, when one among the several harddisks available on the TaskTracker fails. - MapReduce - [issue]
...1. Pull out one hard disk from Task tracker node (out of 10 disks pull one). Now it is noted that some jobs are failing. However process is continued. 2. Wait for sometime (15 mins) and pull...
http://issues.apache.org/jira/browse/MAPREDUCE-2656    Author: Devaraj K, 2011-09-09, 04:55
RE: No Mapper but Reducer - MapReduce - [mail # user]
...Hi Bejoy,         It is possible to execute a job with no mappers and reducers alone.      You can try this by giving the empty directory as input for the ...
   Author: Devaraj K, 2011-09-07, 08:54
[MAPREDUCE-2866] "Ignoring 'duplicate' heartbeat from tracker_x:localhost/'; resending the previous 'lost' response" message is coming continuously for some time - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-2866    Author: Devaraj K, 2011-08-24, 13:30
[MAPREDUCE-2685] Hadoop-Mapreduce-trunk build is failing - MapReduce - [issue]
...Hadoop-Mapreduce-trunk has been failing for long time. https://builds.apache.org/job/Hadoop-Mapreduce-trunk/737/org.apache.hadoop.cli.TestMRCLI.testAll is failing since Build #6972011-07-14 ...
http://issues.apache.org/jira/browse/MAPREDUCE-2685    Author: Devaraj K, 2011-08-22, 14:51
[MAPREDUCE-2799] [MR-279] NPE is throwing on job -status <Invalid Job ID/Job Id doesn't exist> - MapReduce - [issue]
...Exception in thread "main" java.lang.NullPointerException        at org.apache.hadoop.mapred.ClientServiceDelegate.refreshProxy(ClientServiceDelegate.java:113) ...
http://issues.apache.org/jira/browse/MAPREDUCE-2799    Author: Devaraj K, 2011-08-10, 17:35
RE: Subscription for contribution in map-reduce. - MapReduce - [mail # dev]
...Hi Balakrishnan,   Please go through this below link to find the process of contributing to Apache Hadoop projects.  http://wiki.apache.org/hadoop/HowToContribute   Devaraj K ...
   Author: Devaraj K, 2011-08-10, 10:50
RE: RE: Can I use the cores of each CPU to be the datanodes instead of CPU? - MapReduce - [mail # user]
...Hi Jun Tan,        As Subroto pointed Hadoop doesn’t  depend on the number of cores  but we can tune the parameters based on the no of cores and type of job we ...
   Author: Devaraj K, 2011-08-08, 09:37
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