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Re: Apache Development Snapshot Repository does not work - HDFS - [mail # user]
...Are you trying to build a specific submodule here, i.e, under what checked out directory are you running the "mvn install" under? I'd recommend running it under the root of the checkout (the...
   Author: Harsh J, 2013-02-01, 19:10
Re: How to find Blacklisted Nodes via cli. - HDFS - [mail # user]
...There isn't a concept of 'blacklist' in HDFS, it exists only in MapReduce (MR1) and YARN.  Dead Nodes (and those that have been excluded) are reported via "hdfs dfsadmin -report" as ind...
   Author: Harsh J, 2013-01-31, 14:02
[HDFS-4259] Improve pipeline DN replacement failure message - HDFS - [issue]
...The current message shown is something such as below:Failed to add a datanode. User may turn off this feature by setting X.policy in configuration, where the current policy is Y. (Nodes: cur...
http://issues.apache.org/jira/browse/HDFS-4259    Author: Harsh J, 2013-01-28, 13:21
Re: reg max map task config - HDFS - [mail # user]
...Hi,  As noted on http://hadoop.apache.org/docs/stable/cluster_setup.html#Configuring+the+Hadoop+Daemons, and by its own name, the config 'mapred.tasktracker.map.tasks.maximum' applies t...
   Author: Harsh J, 2013-01-28, 05:20
Re: Executing a Python program inside Map Function - HDFS - [mail # user]
...Java provides the Process class to help you launch and read/write from/to processes: http://docs.oracle.com/javase/6/docs/api/java/lang/Process.html. You can use this to spawn your program f...
   Author: Harsh J, 2013-01-26, 16:00
Re: Difference between HDFS and local filesystem - HDFS - [mail # user]
...The local filesystem has no sense of being 'distributed'. If you run a distributed mode of Hadoop over file:// (Local FS), then unless the file:// points being used itself is distributed (su...
   Author: Harsh J, 2013-01-26, 15:55
[HDFS-3801] Provide a way to disable browsing of files from the web UI - HDFS - [issue]
...A few times we've had requests from users who wish to disable browsing of the filesystem in the web UI completely, while keeping other servlet functionality enabled (such as fsck, etc.). Rig...
http://issues.apache.org/jira/browse/HDFS-3801    Author: Harsh J, 2013-01-25, 09:05
Re: HDFS File/Folder permission control with POSIX standard - HDFS - [mail # user]
...Hi,  Please give the HDFS Permissions Guide a read, it should answer your questions: http://hadoop.apache.org/docs/stable/hdfs_permissions_guide.html  On Thu, Jan 24, 2013 at 9:17 ...
   Author: Harsh J, 2013-01-24, 15:52
Re: Submitting MapReduce job from remote server using JobClient - HDFS - [mail # user]
...The Job class itself has a blocking and non-blocking submitter that is similar to JobConf's runJob method you discovered. See http://hadoop.apache.org/docs/current/api/org/apache/hadoop/mapr...
   Author: Harsh J, 2013-01-24, 15:12
Re: Join Operation Using Hadoop MapReduce - HDFS - [mail # user]
...The Hadoop: The Definitive Guide (and also other books) has a detailed topic on Joins and types of Joins in MR, in its MapReduce chapters. Looking the word up in the index would probably hel...
   Author: Harsh J, 2013-01-24, 15:10
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