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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2016/04/27 19:58:13 UTC
[jira] [Issue Comment Deleted] (TEZ-3222) Reduce messaging overhead
for auto-reduce parallelism case
[ https://issues.apache.org/jira/browse/TEZ-3222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Eagles updated TEZ-3222:
---------------------------------
Comment: was deleted
(was: {color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12801078/TEZ-3222.3.patch
against master revision 4389ce8.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/1685//console
This message is automatically generated.)
> Reduce messaging overhead for auto-reduce parallelism case
> ----------------------------------------------------------
>
> Key: TEZ-3222
> URL: https://issues.apache.org/jira/browse/TEZ-3222
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
> Attachments: TEZ-3222.1.patch, TEZ-3222.2.patch
>
>
> A dag with 15k x 1000k vertex may auto-reduce to 15k x 1. And while the data size is appropriate for 1 task attempt, this results in an increase in task attempt message processing of 1000x.
> This jira aims to reduce the message processing in the auto-reduced task while keeping the amount of message processing in the AM the same or less.
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