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https://issues.apache.org/jira/browse/HADOOP-2425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley updated HADOOP-2425:
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Attachment: text-out-format.patch
This patch changes:
1. TextOutputFormat detects Text and writes the bytes directly to save
encoding/decoding time.
2. Saves the bytes for tab and newline.
3. Treats NullWritable like null.
> TextOutputFormat should special case Text
> -----------------------------------------
>
> Key: HADOOP-2425
> URL: https://issues.apache.org/jira/browse/HADOOP-2425
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.16.0
>
> Attachments: text-out-format.patch
>
>
> TextOutputFormat is spending a noticeable amount of time encoding and then
> decoding the bytes in Text objects before they are sent to the output. We
> should handle this as a special case.
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