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Re: How do I get started with hadoop - Hadoop - [mail # user]
...Assuming, you are talking about basic stuff...Michael Noll has some good Hadoop (pre-Yarn) tutorialshttp://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/T...
   Author: Shahab Yunus, 2014-04-25, 11:59
[expand - 1 more] - Re: calling mapreduce from webservice - Hadoop - [mail # user]
...As far as I know there is no API to kick of M/R jobs. There is for M/R v2,a REST API to get status of jobs:http://hadoop.apache.org/docs/r2.3.0/hadoop-yarn/hadoop-yarn-site/MapredAppMasterRe...
   Author: Shahab Yunus, 2014-04-18, 23:07
[expand - 1 more] - Re: JVM option - Hadoop - [mail # user]
...HADOOP_HEAPSIZE and HADOOP_OPTS are not hadoop properties. These seem tobe environment variables of the shell script.Try this with a space between -D and the property name (-Dmapred.child.ja...
   Author: Shahab Yunus, 2014-04-18, 21:48
Re: How to find generated mapreduce code for pig/hive query - Hadoop - [mail # user]
...You can use ILLUSTRATE and EXPLAIN commands to see the execution plan, ifyou mean that by 'under the hood algorithm'http://pig.apache.org/docs/r0.11.1/test.htmlRegards,ShahabOn Fri, Mar 28, ...
   Author: Shahab Yunus, 2014-03-28, 22:30
Re: Architecture question on Injesting Data into Hadoop - Hadoop - [mail # user]
...@ados1984, HDFS is a file system and HBase is a data store on top of that.You cannot create tables (in the conventional meaning of the word table indatabase/store) directly on HDFS without H...
   Author: Shahab Yunus, 2014-03-24, 20:22
Re: Hadoop versions - Hadoop - [mail # user]
...Have you seen this:https://blogs.apache.org/bigtop/entry/all_you_wanted_to_knowand first part of this:http://blog.cloudera.com/blog/2012/01/an-update-on-apache-hadoop-1-0/Regards,ShahabOn Mo...
   Author: Shahab Yunus, 2014-03-24, 12:57
Re: Need FileName with Content - Hadoop - [mail # user]
...If this parameter is at the job level (i.e. for the whole run level) thenyou can set this value int the Configuration object to pass it on to themappers.http://www.thecloudavenue.com/2011/11...
   Author: Shahab Yunus, 2014-03-21, 11:56
Re: File_bytes_read vs hdfs_bytes_read - Hadoop - [mail # user]
...There is some explanation here as well (in case you haven't check that outyet):http://stackoverflow.com/questions/16634294/understanding-the-hadoop-file-system-countersRegards,ShahabOn Fri, ...
   Author: Shahab Yunus, 2014-03-14, 12:06
[expand - 1 more] - Re: Use Cases for Structured Data - Hadoop - [mail # user]
...Assuming that the following is your initial questions:*"My question here is how benefits YARN architecture give me in tems ofanalysis that my Microsoft, Netezza of Tableau products are not g...
   Author: Shahab Yunus, 2014-03-12, 20:00
Re: Mapreduce outputs to a different cluster? - Hadoop - [mail # user]
...As far as I know, you can use distcp to transfer the results of the job form one cluster to another, once the job is done. You can write a simple script to do that. Simple and tested. Some p...
   Author: Shahab Yunus, 2013-10-24, 22:42
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