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Re: How to change default 1024 open files in Linux - HDFS - [mail # user]
...HI Sandeep,  you can try this path   root@dv150:~# *cat /etc/security/limits.d/* *hbase.nofiles.conf  hdfs.conf           mapred.conf     &n...
   Author: Dhanasekaran Anbalagan, 2013-05-07, 16:15
Hadoop Alert Notification via XMPP - HDFS - [mail # user]
...Hi Guys,  I want to implement Xmpp alert with hadoop blacklisted nodes and dead node info. Please guide me How to implement.  It's any other is there for the same. any other Alteri...
   Author: Dhanasekaran Anbalagan, 2013-03-12, 16:54
Killing my HDD with dncp_block_verification.log.prev file - HDFS - [mail # user]
...Hi Guys,  We have Problem with data node.  In our current environment with two replication factor with HDFS file system.  root@dvcliftonhera225* 217G current 1.7T dncp_block_v...
   Author: Dhanasekaran Anbalagan, 2013-03-08, 16:56
Re: DataXceiver error processing WRITE_BLOCK operation src: /x.x.x.x:50373 dest: /x.x.x.x:50010 - HDFS - [mail # user]
...Hi Varun  I believe is not ulimit issue.   /etc/security/limits.conf # End of file *               -      nofile     &nb...
   Author: Dhanasekaran Anbalagan, 2013-03-08, 09:42
Exception in namenode join - HDFS - [mail # user]
...Hi Guys,  I am facing error in my name-node.  2013-02-27 07:21:58,207 ERROR org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader: Encountered exception on operation MkdirOp [leng...
   Author: Dhanasekaran Anbalagan, 2013-02-27, 12:24
How to get Under-replicated blocks information [Location] - HDFS - [mail # user]
...Hi Guys,  I am running three machine cluster, with replication factor 2, I got problem in replica i changed to 2. after I ran fsck  i got  Under-replicated blocks: 71 (0.00348...
   Author: Dhanasekaran Anbalagan, 2013-02-27, 10:17
Re: How to find Replication factor for one perticular folder in HDFS - HDFS - [mail # user]
...HI YouPeng Yang ,  Hi already configured dfs.replication factor=2      /bin/hdfs -getconf -conKey dfs.replication  hdfs@dvcliftonhera227:~$ hdfs -getconf -conKey dfs...
   Author: Dhanasekaran Anbalagan, 2013-02-27, 10:10
Re: How to start Data Replicated Blocks in HDFS manually. - HDFS - [mail # user]
...HI Nitin  to 2 yes correct. We have only two datanode, First  I wrongly configured after I changed  to 2. and i have done with hadoop fs -setrep -R 2 /myfolder  same thin...
   Author: Dhanasekaran Anbalagan, 2013-02-25, 14:34
Hadoop efficient resource isolation - HDFS - [mail # user]
...Hi Guys,  It's possible isolation job submission for hadoop cluster, we currently running 48 machine cluster. we  monitor Hadoop is not provides efficient resource isolation. In my...
   Author: Dhanasekaran Anbalagan, 2013-02-21, 13:16
http://x.x.x.x:50030/jobhistory.jsp [ArrayIndexOutOfBoundsException] - HDFS - [mail # user]
...Hi Guys,   I am trying to view jobhistory.jsp page, It's shows Arry indexoutof Bound Error  How to resolve this   Problem accessing /jobhistory.jsp. Reason:     &nbs...
   Author: Dhanasekaran Anbalagan, 2013-02-21, 10:25
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