Arun C Murthy
Vinod Kumar Vavilapalli
Krishna Kishore Bonagiri
Robert Joseph Evans
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...Hi In CDH security guide it is mentioned that "Important Remember that the user who launches the job must exist on every node." But actually I am successfully...
, 2012-07-05, 13:43
[MAPREDUCE-4290] JobStatus.getState() API is giving ambiguous values
...For failed job getState() API is giving status as SUCCEEDED if we use JobClient.getAllJobs() for retrieving all jobs info from RM....
, 2012-07-05, 12:37
[MAPREDUCE-4292] Job is hanging forever when some maps are failing always
...Set property "mapred.reduce.tasks" to some value greater than zeroI have a job in which some maps are failing always. Observations:1.Map phase is completing with 100%(with succeeded and fail...
, 2012-06-13, 06:20
[MAPREDUCE-4030] If the nodemanager on which the maptask is executed is going down before the mapoutput is consumed by the reducer,then the job is failing with shuffle error
...My cluster has 2 NM's.The value of "mapreduce.job.reduce.slowstart.completedmaps" is set to 1.When the job execution is in progress and Mappers has finished about 99% completion,one of the N...
, 2012-05-30, 11:14
[MAPREDUCE-4124] Job Priority is not changing
...1.Submit job2.Change the job priority using setPriority() or CLI command ./mapred job-set-priority <job-id> <priority>Observe that Job priority is not changed....
, 2012-05-02, 11:11
[MAPREDUCE-4055] Job history files are not getting copied from "intermediate done" directory to "done" directory
...1.Submit job2.After successful execution of job before the Job history files are copied from intermediate done directory to done directory,NameNode got killed.3.Restart the NameNode after ma...
, 2012-04-27, 06:20
[MAPREDUCE-4159] Job is running in Uber mode after setting "mapreduce.job.ubertask.maxreduces" to zero
...1.Configure "mapreduce.job.ubertask.enable" to true2.Configure "mapreduce.job.ubertask.maxreduces" to 0(zero)3.Run job such that it has one reducer(more than "mapreduce.job.ubertask.maxreduc...
, 2012-04-20, 13:24
[MAPREDUCE-4054] Executing start-all.sh and stop-all.sh scripts not displaying proper message
...Execute start-all.sh and stop-all.sh scripts it displays message like "This script is Deprecated. Instead use start-dfs.sh/stop-dfs.sh and start-mapred.sh/stop-mapred.sh". Instead of start-m...
, 2012-03-22, 08:51
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