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Re: Hadoop-MapReduce - MapReduce - [mail # user]
...Hi Ranjini,  A good example to look into : http://www.undercloud.org/?p=408  Cheers, Subroto Sanyal On Dec 6, 2013, at 12:02 PM, Ranjini Rathinam wrote:  ...
[+ more]    Author: Subroto, 2013-12-06, 11:12
Re: Hadoop property precedence - MapReduce - [mail # user]
...Hi Shalish,  The client side conf will take precedence. Further you can use the FileSystem API which can set the block size: create(Path f, boolean overwrite, int bufferSize, short repl...
   Author: Subroto, 2013-07-13, 19:22
Memory Leak while using LocalJobRunner - MapReduce - [mail # user]
...Hi,  I have an application which uses LocalJobRunner to process MR Jobs. From the heap dump of my application I can see multiple object with Name $Proxy90;  happens to be created b...
   Author: Subroto, 2013-05-17, 14:39
Re: S3N copy creating recursive folders - MapReduce - [mail # user]
...Hi George,  Tried as per your suggestion: hadoop fs -cp "s3n://acessKey:[EMAIL PROTECTED]et/srcData/" /test/srcData/  Still facing the same problem  :-(   : cp: java.io.I...
[+ more]    Author: Subroto, 2013-03-07, 08:33
Socket does not have a channel - MapReduce - [mail # user]
...Hi  java.lang.IllegalStateException: Socket Socket[addr=/,port=1004,localport=35170] does not have a channel at com.google.common.base.Preconditions.checkState(Preconditio...
   Author: Subroto, 2013-03-05, 08:46
Unable to access HBase from a Mapper - MapReduce - [mail # user]
...Hi,  I have an MapReduce job which uses does some operation of reading from HBase tables. I have configured the cluster in Secure Mode including Secure HBase.  I am running the Job...
   Author: Subroto, 2012-11-14, 16:14
Re: java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce/v2/app/MRAppMaste - MapReduce - [mail # user]
...Hi Andre,  Yups the problem got solved. The problem I was facing was that JobClient code of my application was  messing the Hadoop Property:yarn.application.classpath. After settin...
[+ more]    Author: Subroto, 2012-07-11, 13:46
Map Task Hanging for long time for commit - MapReduce - [mail # user]
...I am using 0.20.2 hadoop and I find many of my Tasks are getting timed  out. The task Time out is set to 10 minutes(default) :  Caused by: java.lang.RuntimeException: tasktracker: ...
   Author: Subroto, 2012-07-04, 09:01
Calculation of BYTES_READ counter in TrackedRecordReader can give incorrect result - MapReduce - [mail # user]
...Hi,  I have a RecordReader implementation which reads the records  asynchronously and caches them in memory(In a BlockingQueue). When TrackingRecordReader calls for next Record, th...
   Author: Subroto, 2012-06-21, 22:53
JobClient is waiting on ipc.client.connect.max.retries.on.timeouts once Application Master has gone down - MapReduce - [mail # user]
...Hi,   I am facing a problem where the AM goes done once it is finished but,  the API keeps on polling to AM for JobStatus/Report and faces  SocketTimeout By default ipc.client...
   Author: Subroto, 2012-06-07, 12:45
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