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[expand - 1 more] - RE: worker affinity and YARN scheduling - MapReduce - [mail # user]
...Thanks! john  From: Arun C Murthy [mailto:[EMAIL PROTECTED]] Sent: Monday, November 11, 2013 7:25 PM To: [EMAIL PROTECTED] Subject: Re: worker affinity and YARN scheduling   On Nov...
   Author: John Lilley, 2013-11-13, 13:50
Two questions about FSDataInputStream - MapReduce - [mail # user]
...First, this documentation: http://hadoop.apache.org/docs/current/api/org/apache/hadoop/fs/FSDataInputStream.html claims that FSDataInputStream has a seek() method, but javap doesn't show one...
   Author: John Lilley, 2013-11-12, 23:08
[expand - 1 more] - RE: Querying cluster nodes list - MapReduce - [mail # user]
...Ah, never mind.. it is getNodeReports() john  From: John Lilley [mailto:[EMAIL PROTECTED]] Sent: Thursday, October 17, 2013 1:44 PM To: [EMAIL PROTECTED] Subject: Querying cluster nodes...
   Author: John Lilley, 2013-10-17, 19:50
[expand - 1 more] - RE: MapReduce task-worker assignment - MapReduce - [mail # user]
...Thanks!  From: Arun C Murthy [mailto:[EMAIL PROTECTED]] Sent: Monday, October 07, 2013 6:07 PM To: [EMAIL PROTECTED] Subject: Re: MapReduce task-worker assignment  Short version: M...
   Author: John Lilley, 2013-10-08, 21:54
RE: Hadoop 2.x with Eclipse - MapReduce - [mail # user]
...Karim,  I am not an experienced Hadoop programmer, but what I found was that building and debugging Hadoop under Eclipse was very difficult, and I was never to make it work correctly. &...
   Author: John Lilley, 2013-10-06, 13:14
RE: Non data-local scheduling - MapReduce - [mail # user]
...Is this option set on a per-application-instance basis or is it a cluster-wide setting (or both)? Is this a MapReduce-specific issue, or a YARN issue? I don't understand how the problem aris...
   Author: John Lilley, 2013-10-05, 22:19
getFileBlockLocations - MapReduce - [mail # user]
...When I call getFileBlockLocations() on a DFS, will it return the blocks for currently-inactive nodes? If so, how can I filter out the unavailable blocks? Or more generally, how do I get the ...
   Author: John Lilley, 2013-10-04, 13:22
RE: Task status query - MapReduce - [mail # user]
...Thanks Arun!  It is sometimes hard for me to figure out what is built into YARN vs what is done by convention. John   From: Arun C Murthy [mailto:[EMAIL PROTECTED]] Sent: Monday, S...
   Author: John Lilley, 2013-10-01, 20:46
RE: How to best decide mapper output/reducer input for a huge string? - MapReduce - [mail # user]
...You might try creating a "stub" MR job in which the mappers produce no output; that would isolate the time spent reading from HBase without the trouble of instrumenting your code. John  ...
   Author: John Lilley, 2013-09-23, 18:18
[expand - 1 more] - RE: HDFS performance with an without replication - MapReduce - [mail # user]
...Thanks, that makes sense. john  From: Harsh J [mailto:[EMAIL PROTECTED]]  Sent: Sunday, September 15, 2013 12:39 PM To:  Subject: Re: HDFS performance with an without replicat...
   Author: John Lilley, 2013-09-20, 00:14
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John Lilley
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB