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Re: Testers wanted for FSFS svnadmin recover feature (r23595)

From: John Szakmeister <john_at_szakmeister.net>
Date: 2007-03-15 11:42:34 CET

Malcolm Rowe wrote:
> On Tue, Mar 13, 2007 at 03:17:41PM -0400, Greg Hudson wrote:
>> On Tue, 2007-03-13 at 11:51 +0000, Malcolm Rowe wrote:
>>> Justin was kind enough to lend me the ASF's repository - all 515,882
>>> revisions of it :-) It took me just over an hour to run recovery on
>>> this repository on my extremely underpowered fileserver, but it
>>> completed without problems.
>> It occurs to me that if we stored the next-node-id and next-copy-id in
>> each revision file in a well-defined place, "recovery" would be a much
>> more trivial operation; just find the highest revision and pluck the
>> information from it.
>>
>
> That sounds like a good idea. Can you think of an easy way to do it in
> a backward-compatible manner? (Perhaps we could stash them at the tail
> of the rev file - would that work?).

I think just after the changed path information in the rev file would do
the trick.

>
> Oh, actually, we could just store them in the revprops file - that might
> make more sense.

I think of revprops as storing user accessible data, not for storing
direct information about revisions. I much prefer to keep it in the rev
file.

-John

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Received on Thu Mar 15 11:42:54 2007

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