[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: serf in 1.8

From: Mark Phippard <markphip_at_gmail.com>
Date: Tue, 13 Nov 2012 14:48:18 -0500

On Tue, Nov 13, 2012 at 2:44 PM, Stefan Küng <tortoisesvn_at_gmail.com> wrote:
> On 13.11.2012 14:58, Mark Phippard wrote:
>
>> We did some testing in our lab, and the KeepAlive settings help a lot
>> here. Without any KeepAlive, then obviously every Serf request on
>> every connection needed to be re-authenticated. With KeepAlive on and
>> the connection limit set high enough then it was reduced to just the 4
>> connections that Serf opens to the server. So for our case, making
>> sure this was in place on our server, and then doing some more testing
>> to figure out the increases we needed to make in our backends was the
>> main issue to deal with.
>
>
> Did you do some testing with Windows domain authentication as well? Because
> last time I did some testing with that, KeepAlive doesn't do anything there.
> For some setups (for example, if the user GUEST is enabled on the domain
> controller) the re-authentication traffic is more than double the normal svn
> traffic.

No, we only tested with our own mechanism to make sure that KeepAlive
would lessen the connection problem. With any mechanism, there would
have to be some kind of decent caching mechanism in place to not flood
the server with auth requests. I believe mod_ldap has one by default:

http://httpd.apache.org/docs/2.2/mod/mod_ldap.html#ldapcacheentries

Are you talking about mod_sspi? I do not know much about that module.

-- 
Thanks
Mark Phippard
http://markphip.blogspot.com/
Received on 2012-11-13 20:48:51 CET

This is an archived mail posted to the Subversion Dev mailing list.