document multiple keys per reducer oddity in hadoop streaming FAQ
-----------------------------------------------------------------
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
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
|