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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2008/09/10 22:31:44 UTC
[jira] Resolved: (HADOOP-4143) Support for a "raw" Partitioner that
partitions based on the serialized key and not record objects
[ https://issues.apache.org/jira/browse/HADOOP-4143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Owen O'Malley resolved HADOOP-4143.
-----------------------------------
Resolution: Won't Fix
I don't think the gain is worth the additional interface. I would propose adding a BinaryComparable interface that has:
{code}
interface BinaryComparable {
int getLength();
byte[] getBytes();
}
{code}
and both Text and BytesWritable should implement it.
> Support for a "raw" Partitioner that partitions based on the serialized key and not record objects
> --------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4143
> URL: https://issues.apache.org/jira/browse/HADOOP-4143
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Chris Douglas
> Attachments: 4143-0.patch
>
>
> For some partitioners (particularly those using comparators to classify keys), it would be helpful if one could specify a "raw" partitioner that would receive the serialized version of the key rather than the object emitted from the map.
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