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Re: subversion in the news

From: Darryl Okahata <darrylo_at_soco.agilent.com>
Date: 2002-03-14 19:25:16 CET

Greg Stein <gstein@lyra.org> wrote:

> > 0. An organization wishes to maintain read-only mirrors of its
> > Subversion repository. These are either to take the load of
> > anonymous users off the master, or to reduce the bandwith demand of
> > geographically-distant users at some expense in latency.
> Um. Why don't you just use a caching proxy for this? It is transparent to
> the user, and drops a lot of load off the master.

     While the use of a caching proxy is pretty cool, two cases come to
mind where caching proxies are suboptimal:

1. Performance. Over a slow/distant network link, it may take a while
   to populate/update the cache. With CVS, you can use cvsup or rsync
   (yuk) in a nightly cron job to get a read-only mirror; this way,
   during the day, local clients can access the read-only copy at full
   lan speed. With a caching proxy, the first client to hit the proxy
   can get a big performance hit, while the cache gets populated.

2. True disconnected operation (no LAN connection whatsover of any
   type). Caching proxies tend to insist on having a LAN connection ....
   ;-( In some cases, it's very nice to have a periodically-updated,
   read-only copy of a repository.

	Darryl Okahata
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Received on Thu Mar 14 19:26:13 2002

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