Home | About | Sematext search-lucene.com search-hadoop.com
clear query|facets|time Search criteria: .   Results from 1 to 9 from 9 (0.074s).
Loading phrases to help you
refine your search...
[MAPREDUCE-4443] MR AM and job history server should be resilient to jobs that exceed counter limits - MapReduce - [issue]
...We saw this problem migrating applications to MapReduceV2:Our applications use hadoop counters extensively (1000+ counters for certain jobs). While this may not be one of recommended best pr...
http://issues.apache.org/jira/browse/MAPREDUCE-4443    Author: Rahul Jain, 2014-01-24, 18:03
Re: Identification of mapper slots - MapReduce - [mail # user]
...I assume you know the tradeoff here: If you do depend upon mapper slot # in your implementation to speed it up, you are losing on code portability in long term....  That said, one way t...
   Author: Rahul Jain, 2013-10-14, 23:25
[MAPREDUCE-4428] A failed job is not available under job history if the job is killed right around the time job is notified as failed - MapReduce - [issue]
...We have observed this issue consistently running hadoop CDH4 version (based upon 2.0 alpha release):In case our hadoop client code gets a notification for a completed job ( using RunningJob ...
http://issues.apache.org/jira/browse/MAPREDUCE-4428    Author: Rahul Jain, 2013-09-12, 05:41
[MAPREDUCE-4559] Job logs not accessible through job history server for AM killed due to am.liveness-monitor expiry - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-4559    Author: Rahul Jain, 2013-09-12, 05:41
[MAPREDUCE-4560] Job can get stuck in a deadlock between mappers and reducers for low values of mapreduce.job.reduce.slowstart.completedmaps (<<1) - MapReduce - [issue]
...This issue has been seen with MapReduceV2, never with MapReduceV1 in our lab systems.The parameter mapreduce.job.reduce.slowstart.completedmaps=0.05 (the default value).We found Application ...
http://issues.apache.org/jira/browse/MAPREDUCE-4560    Author: Rahul Jain, 2013-09-03, 07:41
[MAPREDUCE-5255] Reduce task preemption  results in task never completing , incomplete fix to MAPREDUCE-3858 ? - MapReduce - [issue]
...The problem was seen with symptoms very similar to MAPREDUCE-3858: the job is hung with continuous reduce task attempts, each attempt getting killed around commit phase.After a while the sin...
http://issues.apache.org/jira/browse/MAPREDUCE-5255    Author: Rahul Jain, 2013-05-18, 00:29
[MAPREDUCE-4442] Accessing hadoop counters from a job is unreliable in yarn during AM process cleanup  window - MapReduce - [issue]
...We found this issue during our tests moving from MapReduceV1 to MapReduceV2. A few of our applications access job counters multiple times:a) After submission of job, while job is execution (...
http://issues.apache.org/jira/browse/MAPREDUCE-4442    Author: Rahul Jain, 2013-02-21, 02:05
[MAPREDUCE-4279] getClusterStatus() fails with null pointer exception when running jobs in local mode - MapReduce - [issue]
...While migrating code from 0.20.2 hadoop codebase to 0.23.1 we encountered this issue for jobs run in local mode of execution:java.lang.NullPointerException at org.apache.hadoop.mapred.JobCli...
http://issues.apache.org/jira/browse/MAPREDUCE-4279    Author: Rahul Jain, 2013-02-15, 13:10
Re: Time taken for launching Application Master - MapReduce - [mail # user]
...Check your node manager logs to understand the bottleneck first. When we had a similar issue on recent version of hadoop, which includes fix for MAPREDUCE-4068: we rearranged our job jar fil...
   Author: Rahul Jain, 2013-01-21, 07:44
Sort:
project
Hadoop (11)
MapReduce (9)
HDFS (2)
type
issue (7)
mail # user (2)
date
last 7 days (0)
last 30 days (0)
last 90 days (0)
last 6 months (0)
last 9 months (9)
author
Harsh J (454)
Arun C Murthy (326)
Vinod Kumar Vavilapalli (309)
Todd Lipcon (215)
Amar Kamat (181)
Thomas Graves (165)
Jason Lowe (159)
Amareshwari Sriramadasu (152)
Sandy Ryza (124)
Tom White (111)
Siddharth Seth (109)
Aaron Kimball (107)
Owen O'Malley (105)
Devaraj K (103)
Ramya Sunil (103)
Alejandro Abdelnur (101)
Robert Joseph Evans (101)
Hemanth Yamijala (97)
Steve Loughran (90)
Ted Yu (78)
Eli Collins (77)
Ravi Gummadi (76)
Karthik Kambatla (70)
Mahadev konar (67)
Ravi Prakash (66)
Rahul Jain