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Re: sockets in hadoop - Hadoop - [mail # dev]
...Hi,  oop. I mean d  All communication between Hadoop masters (JobTracker, NameNode), slaves (TaskTracker, DataNode) and clients happens using a custom RPC built over sockets.  ...
   Author: Hemanth Yamijala, 2010-08-03, 04:25
Re: jobtracker.jsp reports "GC overhead limit exceeded" - Hadoop - [mail # user]
...Hi,  .out files and only looked at .log file and didn't see any error msgs. now  I opened the .out file and saw the following logged exception: Error: Java heap space eam.java:133)...
   Author: Hemanth Yamijala, 2010-08-02, 05:00
Re: Parameters that can be set per job - Hadoop - [mail # user]
...Hi,   I'm almost certain there's no list that documents per-job settable parameters that well. From 0.21 onwards, I think a convention adopted is to name all job-related or task-related...
   Author: Hemanth Yamijala, 2010-07-30, 04:28
Re: Hadoop Cluster Configuration - Hadoop - [mail # general]
...Vaibhav,  l,  This is a complicated question to answer :-). There are certain configuration variables that need to be defined to be the same between the master and the slaves and s...
   Author: Hemanth Yamijala, 2010-07-28, 08:02
Re: Setting jar for embedded Job (Hadoop 0.20.2) - Hadoop - [mail # user]
...Hi,   If you are planning to use job.setJarByClass, the files only need to be only on your classpath locally where you are running the application. You could look at o.a.h.mapred.JobCon...
   Author: Hemanth Yamijala, 2010-07-27, 04:32
Re: Automatic tool for QA checks - Hadoop - [mail # dev]
...Hi,  mit  Hudson (http://hudson-ci.org/) is the continuous integration system used. In the hadoop-common project, there is a script that is integrated with hudson that generates th...
   Author: Hemanth Yamijala, 2010-07-26, 11:17
Re: Hadoop's datajoin - Hadoop - [mail # user]
...Hi,  ing to in/output . Can  Datajoin is a contrib module. So, you will typically find it under contrib/datajoin/. The name could something slightly different - it could have a ver...
   Author: Hemanth Yamijala, 2010-07-12, 08:21
Re: MiniMRCluster still uses deprecated API JobConf - Hadoop - [mail # dev]
...Matias,   I can see this class exists in the 0.21 branch. Please note that from 0.21, the project is split into 3: common, hdfs and mapreduce. The MiniMRCluster is in the mapreduce proj...
   Author: Hemanth Yamijala, 2010-07-12, 04:28
[expand - 2 more] - Re: jni files - Hadoop - [mail # general]
...Amit,  On Fri, Jul 9, 2010 at 3:00 PM, amit kumar verma  wro te: eed e  Yes, I think I do. Unfortunately, AFAIK, there's no easy way out. If your application had previously us...
   Author: Hemanth Yamijala, 2010-07-09, 09:48
Re: reading distributed cache returns null pointer - Hadoop - [mail # user]
...Hi,   ask is nf); nf); y_path); p API?  It would be instructive to look at the test code in src/test/mapred/org/apache/hadoop/mapred/TestMRWithDistributedCache.java. This gives a f...
   Author: Hemanth Yamijala, 2010-07-09, 09:21
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