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From Apache Wiki <wikidi...@apache.org>
Subject [Cassandra Wiki] Update of "HadoopSupport" by jeremyhanna
Date Mon, 09 Apr 2012 14:13:29 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Cassandra Wiki" for change notification.

The "HadoopSupport" page has been changed by jeremyhanna:
http://wiki.apache.org/cassandra/HadoopSupport?action=diff&rev1=51&rev2=52

  <<Anchor(Overview)>>
  
  == Overview ==
- Starting way back in Cassandra 0.6 enabled certain [[http://hadoop.apache.org/|Hadoop]]
functionality against Cassandra's data store.  Specifically, support has been added for [[http://hadoop.apache.org/mapreduce/|MapReduce]],
[[http://pig.apache.org|Pig]] and [[http://hive.apache.org/|Hive]].  Cassandra's Hadoop support
implements the same interface as HDFS to achieve data locality.  That means, that if you have
task trackers running on Cassandra nodes, you'll get input data locality.  See the section
on [[#ClusterConfig|cluster configuration]] for details on how to best configure Hadoop with
Cassandra as well as how to split your analytic load out from your realtime read load.
+ [[http://hadoop.apache.org/|Hadoop]] integration was added way back in version 0.6 of Cassandra.
 It began with [[http://hadoop.apache.org/mapreduce/|MapReduce]] support.  Since then the
support has matured significantly and now includes native support for [[http://pig.apache.org|Apache
Pig]] and [[http://hive.apache.org/|Apache Hive]].  Cassandra's Hadoop support implements
the same interface as HDFS to achieve input data locality (see [[#ClusterConfig|cluster configuration]]
for details on data locality and how to split your analytic and realtime read loads).
  
  !DataStax, a company that creates products around Cassandra, has created a simplified way
to use Hadoop with Cassandra and built it into its !DataStax Enterprise product.  For details
on DSE, see [[http://www.datastax.com/products/enterprise|this product page]].
  

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