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RE: DB Crash - Wedge

From: Peter Kahn <pkahn_at_connected.com>
Date: 2005-04-13 20:05:43 CEST

Thanks for the information. I have heard this suggestion before. FSFS
may be the right way to go. I'll have to perform a variety of tests to
make sure that it works both in terms of performance and stability for
us. I worry about switching to FSFS when it has only been around since
last fall. I would rather someone else be on the bleeding edge. That
being said, SVN is rather young in general so there probably is not 100%
safe bastion.

Before, I create an implementation/testing plan for this, has anyone
else already written one that they'd be willing to share that I could
use as a base? If so please let me know, if not I'll post mine when I
have it.

Peter Kahn
Iron Mountain Digital
-----Original Message-----
From: kfogel@newton.ch.collab.net [mailto:kfogel@newton.ch.collab.net]
On Behalf Of kfogel@collab.net
Sent: Wednesday, April 13, 2005 12:28 PM
To: Peter Kahn
Cc: users@subversion.tigris.org
Subject: Re: DB Crash - Wedge
"Peter Kahn" <pkahn@connected.com> writes:
> Any ideas on what is a reasonable course of action?  I was going to 
> attempt to replicate the situation on a backup copy of my database, 
> but that does bring in many variables because I cannot get back to the
> same state that the db was in prior to the issue.  My other 
> possibility is to write an additional pre-commit hook to analyze the 
> check in prior to processing and record this information in a log.
Well, that would be very helpful for us in debugging, if you spot a
If you just want the problem solved, I suggest switching to FSFS.
Subversion's use of Berkeley DB is not quite as the Berkeley docs
recommend (I phrase it this way because I don't want to see
Berkeley/Sleepycat blamed for what is really Subversion's problem). The
bugs are frustratingly idiosyncratic: some people never get them, others
get them once in a blue moon, some (like you) apparently get them on a
regular basis.  For people in that last category, FSFS is probably the
way to go.
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Received on Wed Apr 13 20:08:01 2005

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