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[expand - 1 more] - Re: Fair Scheduler of Hadoop - MapReduce - [mail # user]
...Hi Joep,  Excellent answer! I think you have answered my confusions. And one remaining issue after reading this document again, even it is old. :-)  It is mentioned, "which will al...
   Author: Lin Ma, 2013-01-21, 17:30
[expand - 3 more] - Re: distributed cache - MapReduce - [mail # user]
...Thanks Harsh, multiple concurrent read is generally faster or?  regards, Lin  On Wed, Dec 26, 2012 at 6:21 PM, Harsh J  wrote:  ...
   Author: Lin Ma, 2012-12-26, 10:43
reducer tasks start time issue - MapReduce - [mail # user]
...Hi guys,  Supposing in a Hadoop job, there are both mappers and reducers. My question is, reducer tasks cannot begin until all mapper tasks complete? If so, why designed in this way? &n...
   Author: Lin Ma, 2012-12-22, 13:25
[expand - 2 more] - Re: One mapper/reducer runs on a single JVM - MapReduce - [mail # user]
...Thanks Mike.  1. So I think you mean for Hadoop, since it is batch job latency is not the most key concern, so time spent on swap is acceptable. But for HBase, the normal use case is on...
   Author: Lin Ma, 2012-11-07, 12:32
[expand - 8 more] - Re: Hadoop counter - MapReduce - [mail # user]
...Thanks for the long discussion Mile. Learned a lot from you.  regards, Lin  On Tue, Oct 23, 2012 at 11:57 AM, Michael Segel wrote:  ...
   Author: Lin Ma, 2012-10-23, 07:12
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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