hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ning Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2446) HCE 2.0
Date Mon, 06 Jun 2011 04:19:47 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044703#comment-13044703
] 

Ning Zhang commented on MAPREDUCE-2446:
---------------------------------------

Dong, nice results. Can you elaborate more on what are the additional changes to HCE v1 (MAPREDUCE-1270)?
Was the 130% speedup due to a new implementation of shuffling and sorting in C++?

> HCE 2.0
> -------
>
>                 Key: MAPREDUCE-2446
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2446
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/streaming, pipes, task
>            Reporter: Dong Yang
>
> Enhancing MapReduce by Task-level Optimization. Except for yielding speedups of up to
130% on original Streaming Program, Hce 2.0 provides some more flexible programming interfaces
including c++, java, python, etc.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message