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https://issues.apache.org/jira/browse/CASSANDRA-4208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13479381#comment-13479381
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Michael Kjellman edited comment on CASSANDRA-4208 at 10/18/12 9:42 PM:
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Jake or Robbie -- have you tested this with BOF? I've confirmed that it looks
like this only streams one of the two named multiple outputs. The sstables are
created for both column families but the reducer never streams the data to the
nodes.
was (Author: mkjellman):
Jake or Robbie -- have you tested this with BOF? I've confirmed that it
looks like this only streams one of the two named multiple outputs.
> 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
> Assignee: Robbie Strickland
> Fix For: 1.2.0 beta 2
>
> 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, trunk-4208-v3.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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