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Re: place of svnrdump

From: Ramkumar Ramachandra <artagnon_at_gmail.com>
Date: Tue, 28 Sep 2010 00:27:38 +0530

Hi Neels,

Neels J Hofmeyr writes:
> > I just benchmarked it recently and found that it dumps 10000 revisions
> > of the ASF repository in 106 seconds: that's about 94 revisions per
> > second.
>
> Wow! That's magnitudes better than the 5 to 10 revisions per second I'm used
> to (I think that's using svnsync).

Yep :)

> While we're at it... svnsync's slowness is particularly painful when doing
> 'svnsync copy-revprops'. With revprop changes enabled, any revprops may be
> changed at any time. So to maintain an up-to-date mirror, one would like to
> copy *all* revprops at the very least once per day. With a repos of average
> corporate size, though, that can take the whole night and soon longer than
> the developers need to go home and come back to work next morning (to find
> the mirror lagging). So one could copy only the youngest 1000 revprops each
> night and do a complete run every weekend. Or script a revprop-change hook
> that propagates revprop change signals to mirrors. :(

Wow. This is quite a serious problem. I'm a very new developer, and I
don't really use Subversion. You should probably let the other
Subversion developers know about this on a new thread?

@Daniel, @Stefan: Thoughts on this?

> svnrdump won't help in that compartment, would it?

That would be a feature request (although I'm not sure svnrdump will
ever be extended to handle that), because svnrdump is still very
young- it just dumps/ loads dumpfiles from remote repositories quickly
at the moment. I've decided to feature freeze until I fix the perf
issues for the upcoming release- I'll keep this in mind though.

-- Ram
Received on 2010-09-27 20:59:35 CEST

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