[jira] [Commented] (TEZ-2978) Add an option to allow small splits early on in TezSplitGrouper

["TezQA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-2978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15088686#comment-15088686 ] 

TezQA commented on TEZ-2978:
----------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment
  http://issues.apache.org/jira/secure/attachment/12781117/TEZ-2978.1.txt
  against master revision d5c9649.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 3.0.1) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in :
                   org.apache.tez.dag.app.TestMockDAGAppMaster

Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/1407//testReport/
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/1407//console

This message is automatically generated.

> Add an option to allow small splits early on in TezSplitGrouper
> ---------------------------------------------------------------
>
>                 Key: TEZ-2978
>                 URL: https://issues.apache.org/jira/browse/TEZ-2978
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>         Attachments: TEZ-2978.1.txt
>
>
> In certain cases, allowing the last few splits to be 'small' - smaller than the requested size is beneficial, and can end up creating fewer splits. Also this results in all splits having some form of locality information.



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