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Posted to common-issues@hadoop.apache.org by "Dieter Plaetinck (JIRA)" <ji...@apache.org> on 2011/03/30 09:54:05 UTC
[jira] [Created] (HADOOP-7213) document multiple keys per reducer
oddity in hadoop streaming FAQ
document multiple keys per reducer oddity in hadoop streaming FAQ
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Key: HADOOP-7213
URL: https://issues.apache.org/jira/browse/HADOOP-7213
Project: Hadoop Common
Issue Type: Improvement
Components: documentation
Reporter: Dieter Plaetinck
Priority: Minor
Hi,
for a newcomer to hadoop streaming, it comes as a surprise that the reducer receives arbitrary keys, unlike the "real" hadoop where a reducer works on a single key.
An explanation for this is @ http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201103.mbox/browser
I suggest to add this to the FAQ of hadoop streaming
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