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Elastic MapReduce and Public IP address (as opposed to internal ones) - MapReduce - [mail # dev]
...Hello,I've started an EMR cluster (Elastic MapReduce). Is the an way to fixthe following problem (which i guess has been asked before).In this scenario I'm not using a socks proxy (it all wo...
   Author: Saptarshi Guha, 2015-03-31, 02:36
[expand - 1 more] - Re: Question for ORCFileFormat - Hive - [mail # user]
...Hi, Thanks, but assuming i can't use HCatalog, or integrating it is difficult, is there an example of using ORC as an outputformat in a mapreduce job?  Regards Saptarshi    On...
   Author: Saptarshi Guha, 2013-09-11, 23:35
Single JVM, many tasks: How do I know when I'm on the last map task - MapReduce - [mail # user]
...Hello,  In my Java Hadoop job, i have reset the reuse variable to be -1. hence a JVM will process multiple tasks.  I have also seen to it that instead of writing to the job context...
   Author: Saptarshi Guha, 2013-02-22, 20:17
mapreduce.map.env - Hadoop - [mail # user]
...Hello,  Is this still valid? Can i set  mapreduce.{map|reduce}.env  When i google i get links  http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CDIQFjA...
   Author: Saptarshi Guha, 2013-02-13, 17:35
[expand - 1 more] - Re: Child JVM, Distributed Cache and Language Embedding - Hadoop - [mail # user]
...Hmm, distributedcache.getLocalCacheArchives   On Tue, Feb 12, 2013 at 9:28 PM, Saptarshi Guha wrote:  ...
   Author: Saptarshi Guha, 2013-02-13, 06:55
How to get conf xml file for a completed job - MapReduce - [mail # user]
...Hello,  I tried retreiving the conf xml file for  a completed job via  runningjob.getJobFile()  This a returns a URI to a an xml file whose path is identical to the link ...
   Author: Saptarshi Guha, 2013-01-22, 20:26
configureIncrementalLoad: 1 reduce pending, never running - HBase - [mail # user]
...Hello,  I am using  Hbase: 0.90.6-cdh3u4, r Hadoop:0.20.2-cdh3u4  I'm also using configureIncrementalLoad to bulk load a small 1000 record data set(it will run on larger datas...
   Author: Saptarshi Guha, 2012-11-13, 16:53
Calling sync for every record in sequencefile.writer - HBase - [mail # user]
...Hello,  For a given part file (e..g part-m-0000), i would like to record the position of key written to this file.  To get this position, i wrote something //out.sync() currentposi...
   Author: Saptarshi Guha, 2012-11-12, 18:26
Reading SequenceFiles throws Wrong key class r - MapReduce - [mail # user]
...Hello,  Sorry for the vague subject ....  I am writing some code using CDH 0.20.2-cdh3u4 to read RHBytesWritable from a file(F) on the HDFS.  (1) The key/values present in F a...
   Author: Saptarshi Guha, 2012-11-06, 04:12
API Design: getClusterMetrics - MapReduce - [mail # dev]
...Hello (sorry for cross post) I am reading the DistributedShell code and came across   GetClusterMetricsRequest clusterMetricsReq  Records.newRecord(GetClusterMetricsRequest.class);...
   Author: Saptarshi Guha, 2012-10-10, 04:11
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB