http://www.datastax.com/support-forums/topic/how-to-run-dse-hadoop-with-existing-map-reduce-job Software, Support, and Training for Apache Cassandra en-US Wed, 19 Jun 2013 23:41:49 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/how-to-run-dse-hadoop-with-existing-map-reduce-job#post-9194 Wed, 27 Feb 2013 18:42:18 +0000 alexliu 9194@http://www.datastax.com/support-forums/ <p>DSE uses CassandraFS to replace HDFS, so you need to add your data to CassandraFS.</p> <p>You can also store your data to Cassandra CF, then use job.setInputFormatClass(ColumnFamilyInputFormat.class);<br /> job.setOutputFormatClass(ColumnFamilyOutputFormat.class);</p> <p>as your input and out format. check this link <a href="http://www.datastax.com/dev/blog/whats-new-cassandra-07-hadoop-output-cassandra" rel="nofollow">http://www.datastax.com/dev/blog/whats-new-cassandra-07-hadoop-output-cassandra</a></p> <p>You may need re-compile your mapreduce code with DSE bundled haddoop jar file</p> <p>run it at DSE install folder as bin/dse hadoop jar ...... </p> http://www.datastax.com/support-forums/topic/how-to-run-dse-hadoop-with-existing-map-reduce-job#post-9102 Thu, 21 Feb 2013 06:57:13 +0000 khoadoan 9102@http://www.datastax.com/support-forums/ <p>I have an existing Map Reduce Job implemented in Java. Normally I should just run hadoop jar args... with appropriate arguments, and with HADOOP_CLASSPATH set to load supporting jar files. I'm new to DSE and I have no idea how to do this here. My first blind try was to run dse hadoop jar... but this didn't work. Please help me on this! </p>