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[expand - 1 more] - Re: streaming documentation in Hadoop 2? - MapReduce - [mail # dev]
...Doc existed in MR1 http://hadoop.apache.org/docs/stable/streaming.html, but it looks like it and a bunch of other stuff (e.g. Rumen and the MapReduce Tutorial) weren't ported over.   On...
   Author: Sandy Ryza, 2013-10-14, 22:28
[MAPREDUCE-5463] Deprecate SLOTS_MILLIS counters - MapReduce - [issue]
...As discussed in MAPREDUCE-5311, the SLOTS_MILLIS_MAPS and SLOTS_MILLIS_REDUCES counters don't really make sense in MR2, and should be deprecated so that they can eventually be removed....
http://issues.apache.org/jira/browse/MAPREDUCE-5463    Author: Sandy Ryza, 2013-10-14, 15:14
pipes not working in MR2? - MapReduce - [mail # dev]
...I'm unable to get a simple hadoop pipes job working in MR2, and got the sense it hasn't been working for a while.  Does anybody have any insight into what's going on?  Has anybody ...
   Author: Sandy Ryza, 2013-10-10, 21:50
[MAPREDUCE-5575] History files deleted from the intermediate directory never get removed from the JobListCache - MapReduce - [issue]
...The JobHistoryServer periodically scans through the intermediate directory. It adds all files to the JobListCache. It deletes job files that are older than the max age and moves all other fi...
http://issues.apache.org/jira/browse/MAPREDUCE-5575    Author: Sandy Ryza, 2013-10-10, 19:47
Re: [VOTE] Release Apache Hadoop 2.2.0 - MapReduce - [mail # dev]
...+1 (non-binding)  Built from source and ran a few jobs on a pseudo-distributed cluster with the Fair Scheduler.   On Tue, Oct 8, 2013 at 6:48 AM, Thomas Graves  wrote:  ...
   Author: Sandy Ryza, 2013-10-08, 22:13
[MAPREDUCE-5383] Deprecate to mapreduce.jobtracker.staging.root.dir to yarn.app.mapreduce.am.staging-dir - MapReduce - [issue]
...This will allow configurations that had previously set mapreduce.jobtracker.staging.root.dir should be able to more easily transition to MR2, as well as make it clear that these properties r...
http://issues.apache.org/jira/browse/MAPREDUCE-5383    Author: Sandy Ryza, 2013-10-08, 20:01
[expand - 1 more] - Re: Non data-local scheduling - MapReduce - [mail # user]
...Ah, I was going off the Fair Scheduler equivalent, didn't realize they were different.  In that case you might try setting it to something like half the nodes in the cluster.  Node...
   Author: Sandy Ryza, 2013-10-03, 18:31
JobClient.getRootQueues returns default, not root? - MapReduce - [mail # dev]
...Apparently JobClient.getRootQueues returns the default queue, not the root queue.  Is this the correct behavior?  It might make sense for the FIFO scheduler, but not for the Fair a...
   Author: Sandy Ryza, 2013-10-02, 18:25
[MAPREDUCE-5544] JobClient#getJob loads job conf twice - MapReduce - [issue]
...Calling JobClient#getJob causes the job conf file to be loaded twice, once in the constructor of JobClient.NetworkedJob and once in Cluster#getJob.  We should remove the former.MAPREDUC...
http://issues.apache.org/jira/browse/MAPREDUCE-5544    Author: Sandy Ryza, 2013-10-02, 12:02
Re: Cluster config: Mapper:Reducer Task Capapcity - MapReduce - [mail # user]
...Hi Himanshu,  Changing the ratio is definitely a reasonable thing to do.  The capacities come from the mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maxi...
   Author: Sandy Ryza, 2013-09-30, 19:52
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