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Hadoop-streaming : PYTHONPATH not working when mapper runs - MapReduce - [mail # user]
...Hi Guys,  I have problem when I ran hadoop streaming PYTHONPATH environment variable not properly getting value. when I try to extend sys.path code level  not working. It's says Ke...
   Author: Dhanasekaran Anbalagan, 2014-01-09, 00:53
Import data from MySql to HBase using Sqoop2 - MapReduce - [mail # user]
...Hi Guys,  How to import mysql to Hbase table. I am using sqoop2 when i try to import table it's doesn't show storage as Hbase.  Schema name: sqoop:000>  create job --xid 12...
   Author: Dhanasekaran Anbalagan, 2013-09-10, 23:30
Hadoop Classpath issue. - MapReduce - [mail # user]
...Hi Guys,  When i trying to execute hadoop fs -ls / command It's return extra two lines.  226:~# hadoop fs -ls / *common ./* *lib lib* Found 9 items drwxrwxrwx   - hdfs   ...
   Author: Dhanasekaran Anbalagan, 2013-05-23, 14:44
Understand dfs.datanode.max.xcievers - MapReduce - [mail # user]
...Hi Guys,  We are having few data nodes in an inconsistent state.  frequently goes dead state. Because of DataXceiver Error  In console we seen the Error. *INFO hdfs.DFSClient:...
   Author: Dhanasekaran Anbalagan, 2013-03-17, 13:12
DataXceiver error processing WRITE_BLOCK operation src: /x.x.x.x:50373 dest: /x.x.x.x:50010 - MapReduce - [mail # user]
...Hi Guys  I am frequently getting is error in my Data nodes.  Please guide what is the exact problem this.   dvcliftonhera138:50010:DataXceiver error processing WRITE_BLOCK ope...
   Author: Dhanasekaran Anbalagan, 2013-03-08, 07:45
What is Block Pool ID namenode? - MapReduce - [mail # user]
...Hi Guys,  In my node namenode page I seen  Started:Wed Feb 27 12:41:28 EST 2013 Version:2.0.0-cdh4.0.1, 4d98eb718ec0cce78a00f292928c5ab6e1b84695 Compiled:Mon Sep 24 13:30:27 EDT 20...
   Author: Dhanasekaran Anbalagan, 2013-03-03, 05:48
How to find Replication factor for one perticular folder in HDFS - MapReduce - [mail # user]
...Hi Guys,  How to query particular folder witch replication factor configured. In my cluster some folder in HDFS configured 2 and some of them configured as three. How to query.  pl...
   Author: Dhanasekaran Anbalagan, 2013-02-25, 17:06
How to start Data Replicated Blocks in HDFS manually. - MapReduce - [mail # user]
...Hi Guys,  We have cluster with two data nodes. We configured data replication factor two. when  i copy data  to hdfs, Data's are not fully replicated. It's says * Number of Un...
   Author: Dhanasekaran Anbalagan, 2013-02-25, 14:15
How to understand DataNode usages ? - MapReduce - [mail # user]
...Hi Guys,  In Datanode UI page they give Datanode usage. what does actually mean, Please guide me Min, Median, stdev   DataNodes usages:Min %Median %Max %stdev %      ...
   Author: Dhanasekaran Anbalagan, 2013-02-14, 09:12
Re: Documentation Link is broken on - MapReduce - [mail # user]
...Not Found  The requested URL /docs/r0.20.2/ was not found on this server. Apache/2.4.3 (Unix) OpenSSL/1.0.0g Server at hadoop.apache.org Port 80  Did I learn something today? If no...
   Author: Dhanasekaran Anbalagan, 2013-02-14, 08:59
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