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From "Jonathan Ellis (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-3264) Add wide row paging for ColumnFamilyInputFormat and ColumnFamilyOutputFormat
Date Wed, 09 Nov 2011 17:47:52 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis resolved CASSANDRA-3264.
---------------------------------------

       Resolution: Won't Fix
    Fix Version/s:     (was: 1.0.3)

wontfixing in favor of transposition then.
                
> Add wide row paging for ColumnFamilyInputFormat and ColumnFamilyOutputFormat
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-3264
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3264
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>            Reporter: T Jake Luciani
>              Labels: lhf
>
> Hadoop input/output formats currently can OOM on wide rows.
> We can add a new option to the ConfigHelper like columnPagingSize with a default of Integer.MAX_VALUE.
> The input format would page the row internally rather than pull it over at once.
> The output format could also use this to avoid sending huge rows over at once.

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