hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-531) Need to sort on more than the primary key
Date Thu, 27 Sep 2007 21:55:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley resolved HADOOP-531.
----------------------------------

    Resolution: Duplicate
      Assignee: Runping Qi  (was: Sanjay Dahiya)

This was fixed by HADOOP-1284.

> Need to sort on more than the primary key
> -----------------------------------------
>
>                 Key: HADOOP-531
>                 URL: https://issues.apache.org/jira/browse/HADOOP-531
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/streaming
>    Affects Versions: 0.5.0
>            Reporter: Richard Kasperski
>            Assignee: Runping Qi
>
> 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.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message