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Re: Subversion's use of Berkeley DB [#11511]

From: Justin Erenkrantz <justin_at_erenkrantz.com>
Date: 2004-12-08 18:48:46 CET

--On Wednesday, December 8, 2004 12:38 PM -0500 Keith Bostic
<bostic@abyssinian.sleepycat.com> wrote:

> As a springboard for that discussion, I propose we find a
> serialization point for all threads of control using a
> Subversion repository so we can determine if a thread of
> control is the first thread of control entering the database
> environment after a possible application or system failure.

Well, for mod_dav_svn access (WebDAV), we can have an Apache hook run on
initialization before httpd starts serving pages. So, the only thing we'd
need to do is figure out if some other process (or system) crash occurred that
left it in a potentially goofy (but non-detectable??) state.

Don't I recall you (or someone else) advising that we always run recovery on
process initialization? Would that work here?

How did George resolve this for mod_db4? (This doesn't directly help ra_svn
or SSH tunneling though, but can provide us with some insights.)

Thanks! -- justin

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Received on Wed Dec 8 18:50:34 2004

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