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Re: XmlInputFormat Hadoop -Mapreduce - MapReduce - [mail # user]
...Hello Ranjini,  PFA the source code for XML Input Format. Also find the output and the input which i have used.  ATTACHED FILES DESRIPTION:  (1) emp.xml --->Input Data for ...
   Author: Shekhar Sharma, 2013-12-17, 15:13
Re: issue when using HDFS - MapReduce - [mail # user]
...Seems like DataNode is not running or went dead Regards, Som Shekhar Sharma +91-8197243810   On Mon, Dec 16, 2013 at 1:40 PM, Geelong Yao  wrote:...
   Author: Shekhar Sharma, 2013-12-16, 08:40
Re: How to set "hadoop.tmp.dir" if I have multiple disks per node? - MapReduce - [mail # user]
...hadoop.tmp.dir is a directory created on local file system For example if you have set hadoop.tmp.dir property to /home/training/hadoop  This directory will be created when you format t...
   Author: Shekhar Sharma, 2013-12-16, 08:39
Re: Hadoop-MapReduce - MapReduce - [mail # user]
...It does work i have used it long back..  BTW if it is not working, write the custom input format and implement your record reader. That would be far more easy than breaking your head wi...
   Author: Shekhar Sharma, 2013-12-09, 16:53
Re: 2 Map tasks running for a small input file - MapReduce - [mail # user]
...Dmapred.tasktracker.map.tasks.maximum=1 ...Guys this property is set for task tracker...when you set this property it means, that particular task tracker will not run more than 1 mapper task...
   Author: Shekhar Sharma, 2013-09-26, 14:31
Re: Uploading a file to HDFS - MapReduce - [mail # user]
...Its not the namenode that does the reading or breaking of the file.. When you run the command hadoop fs -put  ..... Here "hadoop" is a script file which is default client for hadoop..an...
   Author: Shekhar Sharma, 2013-09-26, 10:45
Re: InvalidProtocolBufferException while submitting crunch job to cluster - MapReduce - [mail # user]
... edit your /etc/hosts file Regards, Som Shekhar Sharma +91-8197243810   On Sat, Aug 31, 2013 at 2:05 AM, Narlin M  wrote:...
   Author: Shekhar Sharma, 2013-08-31, 10:43
Re: secondary sort - number of reducers - MapReduce - [mail # user]
...Is the hash code of that key  is negative.? Do something like this  return groupKey.hashCode() & Integer.MAX_VALUE % numParts;  Regards, Som Shekhar Sharma +91-8197243810 &nbs...
   Author: Shekhar Sharma, 2013-08-30, 07:09
Re: how to find process under node - MapReduce - [mail # user]
...Are your trying to find the java process under a node...Then simple thing would be to do ssh and run jps command to get the list of java process Regards, Som Shekhar Sharma +91-8197243810 &n...
   Author: Shekhar Sharma, 2013-08-29, 07:40
Re: hadoop debugging tools - MapReduce - [mail # user]
...You can get the stats for a job using rumen. http://ksssblogs.blogspot.in/2013/06/getting-job-statistics-using-rumen.html  Regards, Som Shekhar Sharma +91-8197243810   On Tue, Aug ...
   Author: Shekhar Sharma, 2013-08-27, 07:12
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