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Re: What happens when you do a ctrl-c on a big dfs -rmr - Hadoop - [mail # user]
...When you issue -rmr with directory, namenode get a directory name and starts deleting files recursively. It adds the blocks belonging to files to invalidate list. NameNode then deletes those...
   Author: lohit, 2009-03-12, 03:56
Re: HDFS is corrupt, need to salvage the data. - Hadoop - [mail # user]
...How many Datanodes do you have. Also, I see that your default replication is set to 1. Can you check if  your datanodes are up and running. Lohit    From: Mayuran Yogarajah &n...
   Author: lohit, 2009-03-10, 00:34
Re: Contributing to hadoop - Hadoop - [mail # dev]
...Ajit,  Another easy way to test your code is to write a testcase. You could follow any of the already existing test HDFS test cases. For example src/test/org/apache/hadoop/hdfs/server/n...
   Author: lohit, 2009-02-26, 08:10
Re: multiple datanodes on single node cluster - Hadoop - [mail # dev]
...It is possible to run multiple datanodes.  You would have to have separate conf file for each datanode, basically you need to have different datanode address (dfs.datanode.address and r...
   Author: lohit, 2009-02-26, 07:55
Re: [VOTE] Chukwa as subproject - Hadoop - [mail # general]
...+1. Thanks, Lohit    From: Eric Yang  To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2009 1:53:23 PM Subject: Re: [VOTE] Chukwa as subproject  +1   This is great ...
   Author: lohit, 2009-02-24, 22:32
Re: using HDFS for a distributed storage system - Hadoop - [mail # user]
...Have you considered Hadoop archive?  http://hadoop.apache.org/core/docs/current/hadoop_archives.html Depending on your access pattern, you could store files in archive step in the first...
   Author: lohit, 2009-02-10, 02:14
Re: copyFromLocal * - Hadoop - [mail # user]
...Which version of hadoop are you using. I think from 0.18 or 0.19 copyFromLocal accepts multiple files as input but destination should be a directory.  Lohit    From: S D  ...
   Author: lohit, 2009-02-10, 02:10
Re: Backing up HDFS? - Hadoop - [mail # user]
...We copy over selected files from HDFS to KFS and use an instance of KFS as backup file system. We use distcp to take backup. Lohit    From: Allen Wittenauer  To: [EMAIL PROTEC...
   Author: lohit, 2009-02-10, 02:05
Re: Bad connection to FS. - Hadoop - [mail # user]
...As noted by others NameNode is not running. Before formatting anything (which is like deleting your data), try to see why NameNode isnt running. search for value of HADOOP_LOG_DIR in ./conf/...
   Author: lohit, 2009-02-05, 01:57
Re: Hadoop-KFS-FileSystem API - Hadoop - [mail # user]
...Hi Wasim,  Here is what you could do. 1. Deploy KFS 2. Build a hadoop-site.xml config file and set fs.default.name and other config variables to point to KFS as described by (http://had...
   Author: lohit, 2009-02-03, 16:31
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