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T Jake Luciani commented on CASSANDRA-3264:
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The MR would get multiple rows rather than one big one.
> 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
> Fix For: 0.8.7
>
>
> 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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