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Re: WEB-DAV Proxy Mirroring problem or just bad configuration?

From: David Summers <david_at_summersoft.fay.ar.us>
Date: 2007-03-22 22:20:40 CET

On Thu, 22 Mar 2007, Justin Erenkrantz wrote:

> On 3/21/07, David Summers <david@summersoft.fay.ar.us> wrote:
>> My understanding was that this *should* allow us to continue to access our
>> (local) mirror repository when the master was down, but this turns out to
>> not be the case.
>
> It *should* - but something might have crept in.
>
> Does the slave have an identical copy of the authorization and
> authentication configs? Ideally, the slave should handle the
> authn/authz locally before passing it on to the master.

Hmmm, not sure of the answer. The master is on Win2K3 using SSPI
basic authentication in the http-2.0.59.

The slave is on RHEL4 using httpd-2.2.4 using basic authenitcation.

So technically, not exactly the same, but to the client I *think* it
should look the same. They of course have the same users and passwords.

>> Our master server was down for a couple of days and when we tried to
>> update on the slave server, we got a variety of error messages, usually
>> (but not always) it would take several minutes (like a wait timeout)
>> before we got the error message.
>>
>> I verified that the local (mirror) httpd was running and our local
>> svnserver process was up and they were doing fine. Our Daily build could
>> check out via the "svn" metthod but when we tried to update via http from
>> the local mirror it would not allow us.
>>
>> Sometimes (but not always) the error would be authorization.
>>
>> Do I have something mis-configured on my local mirror proxy or is this a
>> bug in Subversion?
>>
>> My first guess is that it is re-directing the authorization requests to
>> the master instead of handling them locally, but that is just a gues.
>>
>> Any thoughts, info pointers, etc., would be greatly appreciated.
>
> I'd like to see a TCP dump of what the slave is trying to pass along
> to the master. Feel free to send it to me off-list if it has
> passwords or such not suitable for the list... We may need to tweak
> some things to ensure that all read-only ops work with the master
> being unreachable. But, if I can see a network trace, it'll likely be
> very obvious what's going on and how to fix it. -- justin
>
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>

David Wayne Summers "Linux: Because reboots are for hardware upgrades!"
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Received on Thu Mar 22 22:20:42 2007

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