This one is 531.
HADOOP-485 is not related to this one.
On Sep 14, 2006, at 3:30 PM, Doug Cutting (JIRA) wrote:
[
http://issues.apache.org/jira/browse/HADOOP-531?
page=comments#action_12434835 ]
Doug Cutting commented on HADOOP-531:
-------------------------------------
So do HADOOP-485 and HADOOP-531 solve this issue? If so, then we
should mark it duplicate, or at least dependent.
Need to sort on more than the primary key
-----------------------------------------
Key: HADOOP-531
URL: http://issues.apache.org/jira/browse/HADOOP-531
Project: Hadoop
Issue Type: Improvement
Components: contrib/streaming
Affects Versions: 0.5.0
Reporter: Richard Kasperski
There are many tasks where I need to have finer control over the
ordering in the reduce than a sort on a single key provides. Most of
these situations arise when a merge two sources of data and am
attaching a single instance of one source to multiple instances of a
second source. I know that I can read all the the records with a
single key. It's possible that there might be many millions of these
making memory demands that cannot be satisfied.
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