David Abrahams wrote:
David Abrahams
<[EMAIL PROTECTED]> writes:
I'm getting persistent tracebacks from all my trac (0.9.5)
installations (on an old BSD) that use authentication. Usually the
tracebacks go away if I just refresh the page, but I'm really
concerned that it's not working very professionally. For example, in
FireFox 1.5, I'm logged in, and I visit the roadmap page. What I see
in the browser is a mixture of HTML and tracebacks (below).
When I choose "View > Page Source" I get what looks like perfectly
clean HTML, but maybe that's because the page gets reloaded at that
point.
Does anyone know what's going on here?
FWIW, my server is slow. Is there a chance there's some timing issue
that could be causing this problem?
You certainly didn't configure Trac and Apache the right way,
so that your static resources are served directly by Apache.
Check:
http://projects.edgewall.com/trac/wiki/TracCgi#MappingStaticResources
http://projects.edgewall.com/trac/wiki/TracModPython#Using/tracrootURL
If you don't do that, Trac will serve the static content directly,
by using its "Chrome" component.
The behavior of this component is quite catastrophic in case of an
authentified access, especially with Trac 0.9.x:
the request for the main page will trigger a *save* to the db,
and the secondary requests (for the static resources) will then
trigger a *read* from the db.
If your server is not fast enough, this will most likely result
in several failed requests, due to the database being locked.
In 0.10, that situation has been much improved:
* the Chrome component doesn't need access to the database anymore,
in order to serve the static content;
* the session handling code has also been improved recently
(though I haven't checked yet if there's still a systematic
attempt to write to the db for every authentified request)
So either switch to 0.10 or configure Apache so that it serves
directly the static content. Either way you'll most certainly
see a dramatic speed improvement, even on your slow server :)
-- Christian
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