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[MAPREDUCE-5019] Fair scheduler should allow peremption on reducer only - MapReduce - [issue]
...Fair scheduler is very good.But having a big MR job running lots of mapper and reducer( 10M + 10R )Then a small MR on the same pool (1M + 1R)having slots for 10 mapper and 10 reducer The big...
http://issues.apache.org/jira/browse/MAPREDUCE-5019    Author: Damien Hardy, 2013-04-12, 11:34
[MAPREDUCE-5051] Combiner not used when NUM_REDUCES=0 - MapReduce - [issue]
...We have a M/R job that use Mapper + Combiner but have nothing to do in Reducer :Bulk indexing of HBase data in ElasticSearch,Map output is K / V : #bulk / json_data_to_be_indexed.So job is l...
http://issues.apache.org/jira/browse/MAPREDUCE-5051    Author: Damien Hardy, 2013-03-08, 19:03
Re: MapReduce to load data in HBase - MapReduce - [mail # user]
...Hello, Why not using a PIG script for that ? make the json file available on HDFS Load with http://pig.apache.org/docs/r0.10.0/api/org/apache/pig/builtin/JsonLoader.html Store with http://pi...
   Author: Damien Hardy, 2013-02-07, 11:55
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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