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Search results for pair from mapper to multiple reducer :
[MAPREDUCE-5063] Transfering mapper output  (key,value) pair to multiple reducer - MapReduce - [issue]
...Currently  in  Hadoop MapReduce mapper output in (key,value) form can be transfered to only one reducer Our goal is to be able transfer/shuffle (key,value) pair to multiple reducer...
http://issues.apache.org/jira/browse/MAPREDUCE-5063    Author: Vikas Jadhav, 2013-03-25, 15:35
Return multiple [K,V] pairs from a Java Function - Spark - [mail # user]
...Hi,I would like to create multiple key-value pairs, where all keys still can bereduced. For instance, I have the following 2 lines:A,B,CB,DI would like to return the following pairs for the ...
   Author: Tom, 2014-08-24, 20:15
Re: What is the correct way to get a string back from a mapper or reducer - Hadoop - [mail # user]
...The stackoverflow question doesn't add any useful information.Like I said you can emit the string inside a record. Or if you really wantto handle lots of complexity, write it yourself within...
   Author: Bertrand Dechoux, 2014-07-03, 07:56
Sorting in Mapper to Reducer - MapReduce - [mail # dev]
...Hi,  I want to know how the sort happens in ascending order, whenever the keysfrom mappers are emitted to reducer.What is the algorithm being used ?Any links or guidelines will be of re...
   Author: Knowledge gatherer, 2014-05-24, 14:11
[MAPREDUCE-6363] [NNBench] Lease mismatch error when running with multiple mappers - MapReduce - [issue]
...Command :./yarn jar ../share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.0.1-tests.jar nnbench -operation create_write -numberOfFiles 1000 -blockSize 268435456 -bytesToWrite 1024000...
http://issues.apache.org/jira/browse/MAPREDUCE-6363    Author: Brahma Reddy Battula, 2015-09-02, 17:26
[HBASE-3996]  Support multiple tables and scanners as input to the mapper in map/reduce jobs - HBase - [issue]
...It seems that in many cases feeding data from multiple tables or multiple scanners on a single table can save a lot of time when running map/reduce jobs.I propose a new MultiTableInputFormat...
http://issues.apache.org/jira/browse/HBASE-3996    Author: Eran Kutner, 2014-05-21, 12:06
Using AVRO To Run Python Map Reduce Jobs - Apache Avro - Apache Software Foundation - Avro - [wiki]
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https://cwiki.apache.org/confluence.../Using+AVRO+To+Run+Python+Map+Reduce+Jobs   
Re: Query map reduce - Hadoop - [mail # user]
...Just call context.write multiple times┬áRegards,Dhaval________________________________ From: "Shrivastava, Himnshu (GE Global Research, Non-GE)" To: "[EMAIL PROTECTED]"  Sent: Wedne...
   Author: Dhaval Shah, 2014-06-18, 13:32
Map Reduce Cookbook - Oozie - Apache Software Foundation - Oozie - [wiki]
...g src="/confluence/s/en_GB/5982/f2b47fb3d636c8bc9fd0b11c0ec6d0ae18646be7.1/_/images/logo/confluence-logo.png" alt="Apache Software Foundation"/>             ...
https://cwiki.apache.org/confluence/display/OOZIE/Map+Reduce+Cookbook   
Executor vs Mapper in Hadoop - Spark - [mail # user]
...Hi All, I try to clarify some behavior in the spark for executor. Because I am fromHadoop background, so I try to compare it to the Mapper (or reducer) inhadoop. 1, Each node can h...
   Author: Shuai Zheng, 2015-01-15, 20:17
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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