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Date: Fri, 2 Nov 2012 03:24:13 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-4208) ColumnFamilyOutputFormat should
 support writing to multiple column families
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    [ https://issues.apache.org/jira/browse/CASSANDRA-4208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13489225#comment-13489225 ] 

Jonathan Ellis commented on CASSANDRA-4208:
-------------------------------------------

Reverted the BOF change in 78d6f64f33c592890051c690ddf5d26b7b2af027
                
> 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
>
>         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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