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List: zodb-dev
Subject: RE: [ZODB-Dev] Corrupt db when trying to pack
From: Gerry Kirk <gerry () faithonline ! com>
Date: 2004-10-04 18:07:23
Message-ID: E77FB6B832F3CE4CAFF50EB91FB74FFC1B7D09 () primary ! CENTRAL ! local
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Tim Peters wrote:
>
> You didn't say which version(s) of Zope or ZODB you're using, but
> there are indeed no known software causes for FileStorage corruption
> in current releases of Zope or ZODB. You should look this over now:
>
> http://zope.org/Wikis/ZODB/FileStorageBackup
>
I took a look at that. Very informative.
I'm using Zope 2.7.0 and whatever version of ZODB that comes with it.
>
> For the future, take the recommended practices listed on the link
> above to heart. For example, had you made daily backups all along,
> repairing "impossible" corruption in the first 300MB of a 700MB
> FileStorage probably would have been straightforward.
>
We do a nightly backup of the whole database. How does that make
repairing easier? The only thing I can see doing is to run tests on the
backup each night, to know if there is an issue or not, and deal with it
right away.
Oh, I almost forgot to mention that I ran fstest.py and fsrefs.py, and
both
passed on a newer backup... the problems I had earlier were on backup
copies I transferred between two Linux boxes... not sure why that would
matter.
So, I may be really fortunate and not have a problem with the live db
after all. I'm going to try and pack a backup db and see what happens.
- Gerry
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