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Re: Automatically Documenting Apache Hadoop Configuration - MapReduce - [mail # dev]
...Hi,  standardize them, writing anything that is going to automatically detect config values through static analysis is going to be very difficult. This is because most of the configs in...
[+ more]    Author: Praveen Sripati, 2011-12-06, 08:19
Re: determining what files made up a failing task - MapReduce - [mail # user]
...Matt,  I could not find the properties in the documentation, so I mentioned this feature as hidden. As Harsh mentioned there is an API.  There was a blog entry on ' Automatically D...
[+ more]    Author: Praveen Sripati, 2011-12-04, 16:36
Re: output to file - MapReduce - [mail # user]
...Matt,  You can extend ArrayWritable. Also use TextOutputFormat as the output format.  In the TextOutputFormat key.toString() and value.toString() are called, so override toString()...
   Author: Praveen Sripati, 2011-12-04, 15:33
ApplicationMaster and completed container status - MapReduce - [mail # dev]
...Hi,  According to  http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html  allocated container, it will receive an update from ...
   Author: Praveen Sripati, 2011-11-27, 15:31
Re: Scheduler functionality in MRv2 - MapReduce - [mail # dev]
...Arun,  Thanks for the response.  As of now there as less articles/blogs on MRv2, so anxiously waiting for the documents.  Praveen  On Sun, Nov 27, 2011 at 3:55 AM, Arun M...
[+ more]    Author: Praveen Sripati, 2011-11-27, 01:03
Re: Scheduler Questions - MapReduce - [mail # dev]
...`yarn.app.mapreduce.am.scheduler.heartbeat.interval-ms` parameter is defaulted to to 2000ms (DEFAULT_MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS). So, the AM sends a Heart Beat every 2000ms to the RM....
   Author: Praveen Sripati, 2011-11-26, 04:40
Regarding Hadoop and API - MapReduce - [mail # dev]
...Hi,  There had been some mails regarding Hadoop and MPI and the JIRA for the same is MAPREDUCE-2911. Does it make sense to use MPI for all the interprocess communication in Hadoop using...
   Author: Praveen Sripati, 2011-11-25, 16:04
Re: Distributing our jars to all machines in a cluster - MapReduce - [mail # user]
...Hi,  Here are the different ways of distributing 3rd party jars with the application.  http://www.cloudera.com/blog/2011/01/how-to-include-third-party-libraries-in-your-map-reduce-...
   Author: Praveen Sripati, 2011-11-20, 02:25
Re: Different ways of configuring the memory to the TaskTracker child process (Mapper and Reduce Tasks) - MapReduce - [mail # user]
...Hi,  Can someone please clarify me on the below query?  Thanks, Praveen  On Sun, Nov 6, 2011 at 8:47 PM, Praveen Sripati wrote:  ...
[+ more]    Author: Praveen Sripati, 2011-11-08, 01:29
Re: Streaming question. - MapReduce - [mail # user]
...Dan,  It is a known bug (https://issues.apache.org/jira/browse/MAPREDUCE-1888) which has been identified in 0.21.0 release. Which Hadoop release are you using?  Thanks, Praveen &nb...
   Author: Praveen Sripati, 2011-11-03, 05:46
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