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Re: Retrieve and compute input splits - MapReduce - [mail # user]
...Technically, the block locations are provided by the InputSplit which in the FileInputFormat case, is provided by the FileSystem Interface.  http://hadoop.apache.org/docs/current/api/or...
   Author: Jay Vyas, 2013-09-28, 00:05
[expand - 1 more] - Re: Extending DFSInputStream class - MapReduce - [mail # user]
...The way we have gotten around this in the past is extending and then copying the private code and creating a brand new implementation.   On Thu, Sep 26, 2013 at 10:50 AM, Jay Vyas  ...
   Author: Jay Vyas, 2013-09-26, 14:50
Status of mapred* - MapReduce - [mail # user]
...Will 2.0+ hadoop continue supporting mapred* classes?  Or are they being phased out.  In particular, it appears to me that the RawLocalFileSystem doesnt work quite properly with ma...
   Author: Jay Vyas, 2013-09-11, 19:19
Re: Concatenate multiple sequence files into 1 big sequence file - MapReduce - [mail # user]
...iirc sequence files can be concatenated as is and read as one large file but maybe im forgetting something....
   Author: Jay Vyas, 2013-09-10, 15:17
Re: hadoop cares about /etc/hosts ? - MapReduce - [mail # user]
...Jitendra:  When you say " check your masters file content"  what are you referring to?   On Mon, Sep 9, 2013 at 8:31 AM, Jitendra Yadav wrote:    Jay Vyas http://jay...
   Author: Jay Vyas, 2013-09-09, 14:22
examples of HADOOP REST API - MapReduce - [mail # user]
...Hi, it appears that there are some completed jiras for the Hadoop REST services for monitoring via http calls.  Are there any examples of these in use?   I dont see any docs on the...
   Author: Jay Vyas, 2013-08-20, 17:43
Re: e-Science app on Hadoop - MapReduce - [mail # user]
...there are literally hundreds.  Here is a great review article for how mapreduce is used in the bioinformatics algorithms space:  http://www.biomedcentral.com/1471-2105/11/S12/S1 &n...
   Author: Jay Vyas, 2013-08-16, 21:42
[expand - 1 more] - Re: Proxying FileSystem.get() - MapReduce - [mail # dev]
...Well I want the method calls to be wrapped dynamically, rather than individually wrapping each one of them and manually wrapping the calls.  That way the Wrapping file system can be use...
   Author: Jay Vyas, 2013-08-16, 19:41
Re: Why LineRecordWriter.write(..) is synchronized - MapReduce - [mail # user]
...Then is this a bug?  Synchronization in absence of any race condition is normally considered "bad".  In any case id like to know why this writer is synchronized whereas the other o...
   Author: Jay Vyas, 2013-08-08, 11:53
Re: Staging directory ENOTDIR error. - MapReduce - [mail # user]
...This was a very odd error - it turns out that i had created a file, called "tmp" in my fs root directory, which meant that when the jobs were trying to write to the tmp directory, they ran i...
   Author: Jay Vyas, 2013-07-12, 18:35
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