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https://issues.apache.org/jira/browse/CASSANDRA-4208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460807#comment-13460807
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Robbie Strickland commented on CASSANDRA-4208:
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You don't need the Hadoop patch to make this work.  I think I'm confused as to 
whether you're having trouble getting this to work at all, or just with BOF.  
As I mentioned I have not tested this with BOF, but it is working against 1.1.x 
& Hadoop 1.0.2 using CFOF.  Look here for an example that works with CFOF: 
https://gist.github.com/3763728.
                
> ColumnFamilyOutputFormat should support writing to multiple column families
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4208
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4208
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>    Affects Versions: 1.1.0
>            Reporter: Robbie Strickland
>         Attachments: cassandra-1.1-4208.txt, cassandra-1.1-4208-v2.txt, 
> cassandra-1.1-4208-v3.txt, cassandra-1.1-4208-v4.txt, trunk-4208.txt, 
> trunk-4208-v2.txt
>
>
> It is not currently possible to output records to more than one column family 
> in a single reducer.  Considering that writing values to Cassandra often 
> involves multiple column families (i.e. updating your index when you insert a 
> new value), this seems overly restrictive.  I am submitting a patch that 
> moves the specification of column family from the job configuration to the 
> write() call in ColumnFamilyRecordWriter.

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