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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5326) bzip2 codec (CBZip2OutputStream) creates corrupted output file for some inputs
Date Thu, 26 Feb 2009 22:17:03 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677160#action_12677160
] 

Zheng Shao commented on HADOOP-5326:
------------------------------------

nitpick:

The original code does only one "+" operation, while the new code requires many (depending
on how compiler optimizes it).

What about a code block like this? 

{code}
int i = lastShadow + NUM_OVERSHOOT_BYTES;
do {
  quadrant[i] = 0;
} while (--i > 0);
{code}


> bzip2 codec (CBZip2OutputStream) creates corrupted output file for some inputs
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-5326
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5326
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.19.0
>            Reporter: Rodrigo Schmidt
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-5326.patch
>
>
> Bzip2 codec generated corrupted output files in some test executions I performed. This
bug is probably related to https://issues.apache.org/bugzilla/show_bug.cgi?id=41596.
> * In my case, the problem seems to be at the BWT (Burrows-Wheeler Transform) implementation.

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