| clear query|facets|time |
Search criteria: .
Results from 1 to 8 from
8 (0.165s).
|
|
|
Loading phrases to help you
refine your search...
|
|
Re: Job Tracker & TaskTracker logs location Understaning - MapReduce - [mail # user]
|
|
...Give this a read, and let me know if there are still questions: http://blog.cloudera.com/blog/2009/09/apache-hadoop-log-files-where-to-find-them-in-cdh-and-what-info-they-contain/ &nbs...
|
|
|
Author: Jeff Bean,
2013-01-28, 18:10
|
|
|
Re: Fair Scheduler is not Fair why? - MapReduce - [mail # user]
|
|
...Validate your scheduler capacity and behavior by using sleep jobs. Submit sleep jobs to the pools that mirror your production jobs and just check that the scheduler pool allocation behaves a...
|
|
|
Author: Jeff Bean,
2013-01-16, 17:02
|
|
|
Re: When reduce tasks start in MapReduce Streaming? - MapReduce - [mail # user]
|
|
...It's called Hadoop Streaming because keys and values are streamed in to stdin of the script you specify for Hadoop Streaming and then captured via stdout. On Wed, Jan 16, 2013 at 1:04 ...
|
|
|
Author: Jeff Bean,
2013-01-16, 09:20
|
|
|
Re: When reduce tasks start in MapReduce Streaming? - MapReduce - [mail # user]
|
|
...Hi Pedro, Yes, Hadoop Streaming has the same property. The reduce method is not called until the mappers are done, and the reducers are not scheduled before the threshold set by mapred...
|
|
|
Author: Jeff Bean,
2013-01-16, 05:41
|
|
|
Re: Profiler in Hadoop MapReduce - MapReduce - [mail # user]
|
|
...Hi Pedro, Have you read the documentation on profiling MapReduce? http://hadoop.apache.org/docs/r0.20.2/mapred_tutorial.html#Profiling Jeff On Sat, Dec 15, 2012 at 7:...
|
|
|
Author: Jeff Bean,
2012-12-30, 18:23
|
|
|
[MAPREDUCE-2836] Provide option to fail jobs when submitted to non-existent pools. - MapReduce - [issue]
|
|
...In some environments, it might be desirable to explicitly specify the fair scheduler pools and to explicitly fail jobs that are not submitted to any of the pools. Current behavior of the fai...
|
|
|
http://issues.apache.org/jira/browse/MAPREDUCE-2836
Author: Jeff Bean,
2012-03-28, 09:12
|
|
|
[MAPREDUCE-2905] CapBasedLoadManager incorrectly allows assignment when assignMultiple is true (was: assignmultiple per job) - MapReduce - [issue]
|
|
...We encountered a situation where in the same cluster, large jobs benefit from mapred.fairscheduler.assignmultiple, but small jobs with small numbers of mappers do not: the mappers all clump ...
|
|
|
http://issues.apache.org/jira/browse/MAPREDUCE-2905
Author: Jeff Bean,
2011-11-22, 19:36
|
|
|
Re: mapred.child.java.opts question - MapReduce - [mail # user]
|
|
...Does your class use GenericOptionsParser (does it implement Tool, and does it call ToolRunner.run(), for example? Jeff On Tue, Jun 14, 2011 at 8:47 AM, Alex Kozlov wrote: &...
|
|
|
Author: Jeff Bean,
2011-06-14, 18:22
|
|
|
|
