hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (MAPREDUCE-1608) Allow users to do speculative execution of a task manually
Date Fri, 19 Mar 2010 00:28:27 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Scott Chen reassigned MAPREDUCE-1608:
-------------------------------------

    Assignee: Scott Chen

> Allow users to do speculative execution of a task manually
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-1608
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1608
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Scott Chen
>            Assignee: Scott Chen
>
> Speculative execution improves the latency of the job. Sometimes the job has few very
slow reducers. Spending a little more resource on speculative tasks can improve the latency
a lot. It will be nice that the users can manually select one task and force the speculative
execution on that task just like we can manually kill/fail task.
> The proposal is add link says "speculate" in taskdetails.jsp page where we do "kill/fail".
> Thoughts? 

-- 
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