[rt-users] Tuning RT4

[Wagner Sartori Junior]

Hi,

I have a huge(>2M Tickets, ~500 tickets/day) 3.8.1 RT installation and
I'm trying to upgrade to 4.0.1.

I'm facing some performance problems on my staging server(it's almost
the same spec as my production server).

I'm using on 3.8.1:
Alias /rt/ /opt/rt3/share/html/
<Directory /opt/rt3/share/html/>
       Order allow,deny
       Allow from all
</Directory>
PerlModule Apache::DBI
PerlRequire /opt/rt3/bin/webmux.pl
PerlSetVar MasonStaticSource true
PerlSetVar MasonBufferPreallocateSize 4096000
PerlSetVar MasonDataCacheDefaults "cache_class=> MemoryCache, cache_depth => 4"
PerlSetVar MasonPreloads '/Elements/*'
<Location /rt/>
       AddDefaultCharset UTF-8
       SetHandler perl-script
       PerlHandler RT::Mason
</Location>

To make 4.0.1 works I'd have to change to:
        <Location /rt>
            Order allow,deny
            Allow from all

            SetHandler modperl
            PerlResponseHandler Plack::Handler::Apache2
            PerlSetVar psgi_app /opt/rt4/sbin/rt-server
        </Location>
        <Perl>
            use Plack::Handler::Apache2;
            Plack::Handler::Apache2->preload("/opt/rt4/sbin/rt-server");
        </Perl>

The question is: How can I assign the Mason variables(StaticSource,
BufferSize, Preloads, ...) on RT4?

Thanks,

Wagner Sartori Junior