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Re: Things to keep in mind when writing to a db - MapReduce - [mail # user]
...There are quite a few examples on the web, if you search for them. A quick search yielded the following e.g.: http://jaganadhg.freeflux.net/blog/archive/tag/example/ http://techannotation.wo...
   Author: Shahab Yunus, 2013-08-19, 13:38
[expand - 1 more] - Re: Maven Cloudera Configuration problem - MapReduce - [mail # user]
...In our Clouder 4.2.0 cluster, Iog-in with *admin* user (do you have appropriate permissions by the way?) Then I click on any one of the 3 services (hbase, mapred, hdfs and excluding zookeepe...
   Author: Shahab Yunus, 2013-08-13, 22:19
Re: Not able to understand writing custom writable - MapReduce - [mail # user]
...The overarching responsibility of a record reader is to return one record which in case of conventional, traditionally means one line. But as we see in this case, it cannot be always true. A...
   Author: Shahab Yunus, 2013-08-09, 19:37
Re: Mapreduce for beginner - MapReduce - [mail # user]
...Given that your questions are very broad and at high level, I would suggest that you should pick up a book or such to go through that. The Hadoop: Definitive Guide by Tom White is a great bo...
   Author: Shahab Yunus, 2013-08-09, 01:28
Re: How to construct path to a HDFS dir in local host - MapReduce - [mail # user]
...I think you need to have a user folder (with whatever user you are running hadoop) and put your files there. In fact that folder should be already created there. The hdfsr data dir property ...
   Author: Shahab Yunus, 2013-08-03, 17:22
Re: Change the output of Reduce function - MapReduce - [mail # user]
...I think uou can use NullWritable as key. http://hadoop.apache.org/docs/current/api/org/apache/hadoop/io/NullWritable.html   Regards, Shahab   On Thu, Jul 25, 2013 at 2:58 PM, Felip...
   Author: Shahab Yunus, 2013-07-25, 19:07
Re: ERROR orm.ClassWriter: Cannot resolve SQL type 1111 - MapReduce - [mail # user]
...I think you will have to write a custom code to handle this.  Regards, Shahab   On Tue, Jul 23, 2013 at 3:50 AM, Fatih Haltas  wrote:  ...
   Author: Shahab Yunus, 2013-07-23, 12:48
Re: Loading 1st 100 records - MapReduce - [mail # user]
...Any error messages or details or logs would be helpful in advising.  Plus you are saying your loading FROM teradata. Where are you loading TO? How does HDFS (and the 100 files on it) co...
   Author: Shahab Yunus, 2013-07-22, 16:15
Re: java.io.IOException: error=2, No such file or directory - MapReduce - [mail # user]
...Great. Can you please share, if possible, what was the problem and how you solved it? Thanks.  Regards, Shahab   On Tue, Jul 16, 2013 at 9:58 AM, Fatih Haltas  wrote:  ...
   Author: Shahab Yunus, 2013-07-16, 14:37
[expand - 1 more] - Re: How are 'PHYSICAL_MEMORY_BYTES' and 'VIRTUAL_MEMORY_BYTES' calculated? - MapReduce - [mail # user]
...As Vinod Kumar Vavilapalli they are indeed snapshots in point and time. So they are neither the peak usage from the whole duration of the job, nor cumulative aggregate that increases over ti...
   Author: Shahab Yunus, 2013-07-12, 20:51
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