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RE: mailing list - HDFS - [mail # dev]
...You need to send a mail to [EMAIL PROTECTED] for unsubscribe to this list.  http://hadoop.apache.org/mailing_lists.html.  Thanks Devaraj k   From: Nathan A Howard [mailto:[EMA...
   Author: Devaraj k, 2013-09-24, 13:27
RE: Question related to resource allocation in Yarn! - HDFS - [mail # user]
...Hi Rahul,      Could you tell me, what is the version you are using?  ยท         If you want a container, you need to issue 3 resource requests (1-node...
   Author: Devaraj k, 2013-09-06, 05:01
RE: Things to keep in mind when writing to a db - HDFS - [mail # user]
...If you want to read/write through mapred Job, You can refer org.apache.hadoop.mapred.lib.db.DBInputFormat & org.apache.hadoop.mapred.lib.db.DBOutputFormat for reading and writing from/into d...
   Author: Devaraj k, 2013-08-19, 09:54
RE: objects as key/values - HDFS - [mail # user]
...You can write custom key/value classes by implementing org.apache.hadoop.io.Writable interface for your Job.  http://hadoop.apache.org/docs/current/api/org/apache/hadoop/io/Writable.htm...
   Author: Devaraj k, 2013-07-30, 02:43
RE: Want to Sort the values in one line using map reduce - HDFS - [mail # user]
...You are almost done to get the desired output. You need to change little in the reduce function like this,  public static class ReduceClass extends MapReduceBase implements    ...
   Author: Devaraj k, 2013-07-27, 04:55
RE: Join Operation with Regular Expression - HDFS - [mail # user]
...You can try writing the mapreduce job for this. In the Job, you can filter the records in Mapper based on the where condition regex and then perform the join in the Reducer.  Please ref...
   Author: Devaraj k, 2013-07-23, 08:44
RE: spawn maps without any input data - hadoop streaming - HDFS - [mail # user]
...Hi Austin,                  Here number of maps  for a Job  depends on the splits return by InputFormat.getSplits() API. We can have an...
   Author: Devaraj k, 2013-07-17, 03:30
RE: Requesting containers on a specific host - HDFS - [mail # user]
...Hi Kishore,  hadoop-2.1.0 beta release is in voting process now.  You can try out from hadoop-2.1.0 beta RC http://people.apache.org/~acmurthy/hadoop-2.1.0-beta-rc0/ or you could c...
   Author: Devaraj k, 2013-07-05, 03:22
RE: Yarn HDFS and Yarn Exceptions when processing "larger" datasets. - HDFS - [mail # user]
...Hi,     Could you check the network usage in the cluster when this problem occurs? Probably it is causing due to high network usage.  Thanks Devaraj k  From: blah blah [m...
   Author: Devaraj k, 2013-06-26, 06:27
RE: Job end notification does not always work (Hadoop 2.x) - HDFS - [mail # user]
...Even if we handle all the failure cases in AM for Job End Notification, we may miss cases like abrupt kill of AM when it is in last retry. If we choose NM to give the notification, again RM ...
   Author: Devaraj k, 2013-06-24, 06:28
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