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https://issues.apache.org/jira/browse/SVN-4668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15810096#comment-15810096
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Luke Perkins commented on SVN-4668:
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I have reduced the priority from "Critical" to "Major". The reason why I am
keeping this at "Major" is because the number of dump files I have distributed
among my remote servers. The methodology I use to archive my repositories is to
produce an incremental SVN dump file for each and every check-in. These SVN
dump files are distributed among 4 backup servers. Once a month I run sha512sum
on every dump file on the backups. Then I compare the SVN repository
incremental dump sha512sum against what the backup servers say it should be. If
there are no differences, then there are no problems.
Here is the issue, each backup server contains over 200G of historical
incremental svn dump files. Some of these files are dated from 10 years ago.
Three backup servers are remotely geographically co-located. Rebuilding and
redistributing these incremental SVN dump files is a daunting task (not an
option).
I have had to rebuild SVN servers multiple times using these incremental SVN
dump files. Now that I can not validate the integrity of these SVN dump files,
it is a significant concern for the integrity of my backups.
> svnserve dump format order has changed
> --------------------------------------
>
> Key: SVN-4668
> URL: https://issues.apache.org/jira/browse/SVN-4668
> Project: Subversion
> Issue Type: Bug
> Components: svnserve
> Affects Versions: 1.9.3
> Environment: Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-53-generic x86_64)
> Reporter: Luke Perkins
> Attachments: SvnserveDumpIssue_20170107.jpg
>
>
> The format of the svnserve dump file has changed somewhere between version
> 1.8 and 1.9.3 ( version 1.9.3 (r1718519)). I routinely perform svnserve dump
> operations of my repositories and compare them against archived copies of
> dump files to be used for emergency recovery operations.
> It appears the content order difference is benign other than "diff"
> operations fail. I have file illustrating the difference.
> The version information for svnserve dump is:
> svnserve, version 1.9.3 (r1718519)
> compiled Mar 14 2016, 07:39:01 on x86_64-pc-linux-gnu
> Copyright (C) 2015 The Apache Software Foundation.
> This software consists of contributions made by many people;
> see the NOTICE file for more information.
> Subversion is open source software, see http://subversion.apache.org/
> The following repository back-end (FS) modules are available:
> * fs_fs : Module for working with a plain file (FSFS) repository.
> * fs_x : Module for working with an experimental (FSX) repository.
> * fs_base : Module for working with a Berkeley DB repository.
> Cyrus SASL authentication is available.
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