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Re: manipulate DFSInputStream in FSDataInputStream? - Hadoop - [mail # user]
...Solved by declare an empty somemethod() in FSInputStream and override it in DFSInputStream      Nan Zhu School of Computer Science, McGill University    On Saturday,...
   Author: Nan Zhu, 2013-12-15, 01:55
[expand - 1 more] - Re: dynamically resizing Hadoop cluster on AWS? - Hadoop - [mail # general]
...Oh, I’m not running HDFS in the instances, I use S3 to save data  Nan Zhu School of Computer Science, McGill University    On Wednesday, October 23, 2013 at 11:11 PM, Nan Zhu ...
   Author: Nan Zhu, 2013-10-24, 03:15
Re: Using NFS mounted volume for Hadoop installation/configuration - Hadoop - [mail # user]
...I'm also maintaining an experimental Hadoop cluster, and I need to modify the Hadoop source code and test it,    so just use NFS to deploy the latest version of code, no problem fo...
   Author: Nan Zhu, 2013-02-18, 18:14
[expand - 1 more] - Re: what will happen when HDFS restarts but with some dead nodes - Hadoop - [mail # user]
...I think Chen is asking replication lost,    so, according to Harsh's reply, in safe mode, NN will know all blocks which has less replications than 3(by default setup) but no less t...
   Author: Nan Zhu, 2013-01-30, 16:45
回复: unsubscribe - Hadoop - [mail # user]
...joking?   you send wrong unsubscribing request by replying an email about how to co rrectly unsubscribe this mail list?   Nan Zhu 已使用 Sparrow (http://www.sparrowmailapp.com/?sig ) ...
   Author: Nan Zhu, 2012-08-09, 06:02
[expand - 2 more] - Re: what does "keep 10% map, 40% reduce" mean in gridmix2's README? - Hadoop - [mail # user]
...yes, what's the relationship between them?  On Mon, Jun 25, 2012 at 2:50 PM, gemini alex wrote:     Nan Zhu School of Electronic, Information and Electrical Engineering,229 Sh...
   Author: Nan Zhu, 2012-06-25, 09:45
Re: How Jobtrakcer stores Tasktrackers Information - Hadoop - [mail # user]
...I'm not sure what's the exact meaning of the tasktracker information you mentioned  there is a "TaskTrackerStatus" class, and when the system runs, tt jt transmits serialized objects of...
   Author: Nan Zhu, 2011-11-30, 13:36
failed to compile 0.20.3 - Hadoop - [mail # user]
...Hi, all  I met a problem when compling the hadoop-0.20.3  I modified some codes in JobTracker, and then compile it, the eclipse tells me that  /Users/zhunan/codes/hadoop-0.20....
   Author: Nan Zhu, 2011-09-29, 00:09
[expand - 1 more] - Re: phases of Hadoop Jobs - Hadoop - [mail # user]
...Hi, Arun ,  Thanks!  As you explained,  in the hadoop, we cannot explicitly divide job as two phase, map and reduce, but only for reduce task, we can judge which stage it's in...
   Author: Nan Zhu, 2011-09-19, 05:01
Re: Any related paper on how to resolve hadoop SPOF issue? - Hadoop - [mail # dev]
...Hope it helps  http://www.springerlink.com/content/h17r882710314147/  Best,  Nan  On Thu, Aug 25, 2011 at 5:43 PM, George Kousiouris wrote:    Nan Zhu School of...
   Author: Nan Zhu, 2011-08-25, 09:46
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