[jira] [Issue Comment Deleted] (TEZ-3202) Reduce the memory need for jobs with high number of segments

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

     [ https://issues.apache.org/jira/browse/TEZ-3202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles updated TEZ-3202:
---------------------------------
    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/12797400/TEZ-3202.2.patch
  against master revision 27a13fc.

    {color:red}-1 patch{color}.  master compilation may be broken.

Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/1624//console

This message is automatically generated.)

> Reduce the memory need for jobs with high number of segments
> ------------------------------------------------------------
>
>                 Key: TEZ-3202
>                 URL: https://issues.apache.org/jira/browse/TEZ-3202
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>         Attachments: TEZ-3202.1.patch, TEZ-3202.2.patch, TEZ-3202.3.patch
>
>
> Segment has a 'key' member that holds accounting information to the reader's current key buffer, position, and length. There is a 384 byte overhead per segment since the account is done with the DataInputBuffer class which derives from DataInputStream which has underlying byte[80] and char[80] among significant pieces. This jira aims to reduce the overhead per segment



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