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The "HadoopSupport" page has been changed by JonathanEllis. http://wiki.apache.org/cassandra/HadoopSupport?action=diff&rev1=4&rev2=5 -------------------------------------------------- - Cassandra version 0.6 and later support running Hadoop jobs against data in Cassandra, out of the box. See https://svn.apache.org/repos/asf/cassandra/trunk/contrib/word_count/ for an example. (Inserting the ''output'' of a Hadoop job into Cassandra has always been possible.) Cassandra rows or row fragments (that is, pairs of (key, `SortedMap` of columns) are input to Map tasks for processing by your job, as specified by a `SlicePredicate` that describes which columns to fetch from each row. Here's how this looks in the word_count example, which selects just one configurable columnName from each row: + Cassandra version 0.6 and later support running Hadoop jobs against data in Cassandra, out of the box. See https://svn.apache.org/repos/asf/cassandra/trunk/contrib/word_count/ for an example. (Inserting the ''output'' of a Hadoop job into Cassandra has always been possible.) Cassandra rows or row fragments (that is, pairs of key + `SortedMap` of columns) are input to Map tasks for processing by your job, as specified by a `SlicePredicate` that describes which columns to fetch from each row. Here's how this looks in the word_count example, which selects just one configurable columnName from each row: {{{ ConfigHelper.setColumnFamily(job.getConfiguration(), KEYSPACE, COLUMN_FAMILY);
