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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9207) version info source checksum does not include all source files
Date Mon, 14 Jan 2013 21:50:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13553161#comment-13553161
] 

Chris Nauroth commented on HADOOP-9207:
---------------------------------------

Quoting an earlier comment from HADOOP-8924:

{quote}
The most important use of the checksum is to enforce the constraint that all the servers talking
to each other be running code compiled from the same source tree.
{quote}

Considering this, I think the best solution is to calculate a single global checksum for the
whole project and use the same value across all modules.

                
> version info source checksum does not include all source files
> --------------------------------------------------------------
>
>                 Key: HADOOP-9207
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9207
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 3.0.0
>            Reporter: Chris Nauroth
>
> The build process takes an MD5 checksum of the source files in Common and YARN.  The
HDFS version info command prints the checksum from Common.  The YARN version info command
prints the checksum from YARN.  This is incomplete in that the HDFS source code is never included
in the checksum, and 2 different YARN builds with the same YARN code but different Common
code would have the same checksum.

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