[jira] [Commented] (PIG-3251) Bzip2TextInputFormat requires double the memory of maximum record size

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

    [ https://issues.apache.org/jira/browse/PIG-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096796#comment-15096796 ] 

Koji Noguchi commented on PIG-3251:
-----------------------------------

Thanks [~rohini].  Created PIG-4779 for tracking.

In my test environment it was throwing different IOException and incorrectly passing the test.  I'll check.

> Bzip2TextInputFormat requires double the memory of maximum record size
> ----------------------------------------------------------------------
>
>                 Key: PIG-3251
>                 URL: https://issues.apache.org/jira/browse/PIG-3251
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Koji Noguchi
>            Assignee: Koji Noguchi
>             Fix For: 0.16.0
>
>         Attachments: pig-3251-trunk-v01.patch, pig-3251-trunk-v02.patch, pig-3251-trunk-v03.patch, pig-3251-trunk-v04.patch, pig-3251-trunk-v05.patch, pig-3251-trunk-v06.patch, pig-3251-trunk-v07.patch, pig-3251-trunk-v08.patch, pig-3251-trunk-v09.patch
>
>
> While looking at user's OOM heap dump, noticed that pig's Bzip2TextInputFormat consumes memory at both
> Bzip2TextInputFormat.buffer (ByteArrayOutputStream) 
> and actual Text that is returned as line.
> For example, when having one record with 160MBytes, buffer was 268MBytes and Text was 160MBytes.  
> We can probably eliminate one of them.



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