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manipulate DFSInputStream in FSDataInputStream? - MapReduce - [mail # user]
...Hi, all    I’m modifying FSDataInputStream for some project,    I would like to directly manipulate “in" object in my implementation    as in the constructor a ...
   Author: Nan Zhu, 2013-12-15, 00:53
Re: dynamically resizing the Hadoop cluster? - MapReduce - [mail # user]
...Good explanation,  Thank you, Ravi  Best,   On Thu, Oct 24, 2013 at 4:51 PM, Ravi Prakash  wrote:    Nan Zhu School of Computer Science, McGill University E-Mai...
   Author: Nan Zhu, 2013-10-24, 21:07
Re: dynamically resizing Hadoop cluster on AWS? - MapReduce - [mail # user]
...Thank you very much for replying and sorry for posting on the wrong list    Best,    Nan Zhu School of Computer Science, McGill University    On Thursday, Octob...
   Author: Nan Zhu, 2013-10-24, 12:29
manage bandwidth resource in YARN - MapReduce - [mail # user]
...Hi, all  I would like to know if YARN supports to manage bandwidth resource for containers, like minimum bandwidth guarantee?  maybe not in the trunk but is there any under-review ...
   Author: Nan Zhu, 2013-09-04, 20:21
Re: How can I limit reducers to one-per-node? - MapReduce - [mail # user]
...those nodes with 2 reducers were running these two r at the same time? if yes, I think you can change mapred-site.xml as I suggested,    if no, i.e. your goal is to make all nodes ...
   Author: Nan Zhu, 2013-02-09, 04:59
what will happen when HDFS restarts but with some dead nodes - MapReduce - [mail # user]
...Hi, all   I'm wondering if HDFS is stopped, and some of the machines of the cluster are moved,  some of the block replication are definitely lost for moving machines  when I r...
   Author: Nan Zhu, 2013-01-30, 03:04
Re: Fair Scheduler is not Fair why? - MapReduce - [mail # user]
...BTW, what I mentioned is fairsharepreemption  not minimum share   an alternative way to achieve that is to set minimum share of two queues to be equal(or other allocation scheme yo...
   Author: Nan Zhu, 2013-01-16, 16:50
Re: response time measurement - MapReduce - [mail # dev]
...yes, you can do that   and actually there some counters implementations,     public static enum Counter {       NUM_FAILED_MAPS,      NUM_FAILED_...
   Author: Nan Zhu, 2012-11-17, 14:19
Re: Fair Scheduler question: Fair share and its effect on max capacity - MapReduce - [mail # user]
...You set maxMaps to 200,    so the maximum running mappers should be no more than 200  Best,   Nan Zhu School of Computer Science, McGill University    On Thursd...
   Author: Nan Zhu, 2012-11-08, 23:18
Any existing counter for map/reduce response time? - MapReduce - [mail # dev]
...Hi, all   is there any existing counter to reflect the response time of a job in map and reduce phase respectively?  Best,   Nan Zhu School of Computer Science, McGill Univers...
   Author: Nan Zhu, 2012-10-30, 16:22
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