You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2016/07/11 17:38:11 UTC

[jira] [Commented] (TEZ-3334) Tez Custom Shuffle Handler

    [ https://issues.apache.org/jira/browse/TEZ-3334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371247#comment-15371247 ] 

Jonathan Eagles commented on TEZ-3334:
--------------------------------------

[~sseth], [~gopalv] is there an example that can be pointed to for a reference implementation? In addition, a rough design will help to make sure an implementation is sufficiently generic.

> Tez Custom Shuffle Handler
> --------------------------
>
>                 Key: TEZ-3334
>                 URL: https://issues.apache.org/jira/browse/TEZ-3334
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>
> For conditions where auto-parallelism is reduced (e.g. TEZ-3222), a custom shuffle handler could help reduce the number of fetches and could more efficiently fetch data. In particular if a reducer is fetching 100 pieces serially from the same mapper it could do this in one fetch call. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)