https://github.com/mgedmin/repozo-testcases

Some ad-hoc functional testcases to reproduce repozo (the ZODB online backup tool) bugs
https://github.com/mgedmin/repozo-testcases

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Some ad-hoc functional testcases to reproduce repozo (the ZODB online backup tool) bugs

• Host: GitHub
• URL: https://github.com/mgedmin/repozo-testcases
• Owner: mgedmin
• Created: 2011-12-07T00:51:05.000Z (about 13 years ago)
• Default Branch: master
• Last Pushed: 2011-12-07T00:51:23.000Z (about 13 years ago)
• Last Synced: 2024-10-13T18:27:47.541Z (2 months ago)
• Language: Python
• Homepage: https://bugs.launchpad.net/zodb/+bugs?search=Search&field.bug_reporter=mgedmin
• Size: 82 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.txt

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README

        
Background:

  * there's this server with a Data.fs and a cron script that makes incremental

    backups using repozo

  * the backups are gpg-encrypted and transferred to a remote storage server

  * recovery procedure involves rsyncing the backups to a local machine,

    decrypting them, and reassembling them into Data.fs with repozo

  * I've done that twice: it worked the first time, but I got a corrupted

    Data.fs the second time

  * after a few hours of investigation I discovered that three of the 5000-odd

    incremental deltafs files were 0-length

  * turns out the gpg-decrypting script did not resume its work at the right

    place when when interrupted with ^C, leaving empty files in the middle

So, the bug: repozo does not notice when some of the deltafs files are

truncated.  It should notice, complain loudly, and abort, instead of silently

producing a corrupted Data.fs.  To reproduce, run ::

   make test2

While writing this test case I discovered another bug: if you run repozo

twice in quick succession, you end up with a backup repository that fails to

be restored correctly.  To reproduce, run ::

   make test1

-- Marius Gedminas , 2011-12-07