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[expand - 1 more] - Re: Hadoop counter - MapReduce - [mail # user]
...That clarifies why counters can go down during a job.  Very important clarification because being able to rely on such "empemeral" counters is a really important tool for realtime monit...
   Author: Jay Vyas, 2012-10-19, 16:02
Re: Why they recommend this (CPU) ? - MapReduce - [mail # user]
...Presumably, if you have a reasonable number of cores - speeding the cores up will be better than forking a task into smaller and smaller chunks - because at some point the overhead of multip...
   Author: Jay Vyas, 2012-10-11, 17:46
Re: Lib conflicts - MapReduce - [mail # user]
...Yup! I hate this issue.  It also happens with json libs if you have an old hadoop !!!  Its really easy also to dump the exact class path at runtime using the  ((URLClassLoader...
   Author: Jay Vyas, 2012-10-03, 12:01
Re: IOException when using MultipleSequenceFileOutputFormat - MapReduce - [mail # user]
...MultipleSequenceFileOutputFormat, this program would works fine( at least there is no error in log).  wrote:     Jay Vyas MMSB/UCHC...
   Author: Jay Vyas, 2012-09-18, 03:24
Re: Suggestions required for learning Hadoop - MapReduce - [mail # user]
...I think the best place to start, as an admin, would be to look at what you currently do : What tasks, if any, you've had to monitor, which are I/O intensive... Are any of these amenable to d...
   Author: Jay Vyas, 2012-09-13, 18:04
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