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https://issues.apache.org/jira/browse/CASSANDRA-4208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460745#comment-13460745
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Michael Kjellman commented on CASSANDRA-4208:
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so i've been working on this for a few days. As far as I can tell this is not
working with 1.1.5 and 1.0.3. I've gone through and svn blammed and it doesn't
look like anything exciting has really changed in the mapreduce code. Robbie
have you tested this on the current GA versions?
> 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, 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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