[rt-users] Which Apache Optimize Options are useful for RT?

[ktm at rice.edu]

On Tue, Jul 12, 2011 at 02:38:04AM -0700, john s. wrote:
> 
> 
> So.... 
> 
> 
> any other optmize measures that you can reccommed for RT without any
> problems such like mod_cache ?
> 
> 
> best regards john 
> 

Here are some options that we have that you may want to give a try:

# Reduce DEFLATE compression level to make it faster.
DeflateCompressionLevel 1
DeflateBufferSize 1024

# Change Mason caching parameters
PerlSetVar MasonStaticSource true
PerlSetVar MasonBufferPreallocateSize 4096000
PerlSetVar MasonDataCacheDefaults "cache_class=> MemoryCache, cache_depth => 4"
PerlSetVar MasonPreloads '/Elements/*'

We also turn on some caching for common graphics, CSS, javascript...:

<Location />
	SetOutputFilter DEFLATE
	# Netscape 4.x has some problems...
	BrowserMatch ^Mozilla/4 gzip-only-text/html
	# Netscape 4.06-4.08 have some more problems
	BrowserMatch ^Mozilla/4\.0[678] no-gzip
	# MSIE masquerades as Netscape, but it is fine
	# BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
	# NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48
	# the above regex won't work. You can use the following
	# workaround to get the desired effect:
	BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
	# Don't compress images
	SetEnvIfNoCase Request_URI \
	\.(?:gif|jpe?g|png)$ no-gzip dont-vary
	SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary

	<IfModule mod_expires.c>
	# turn on the mod_expires module for this directory
	ExpiresActive on

	# cache common graphics for 7 days
	ExpiresByType image/x-icon "access plus 7 days"
	ExpiresByType image/jpg "access plus 7 days"
	ExpiresByType image/gif "access plus 7 days"
	ExpiresByType image/jpeg "access plus 7 days"
	ExpiresByType image/png "access plus 7 days"

	# cache CSS for 24 hours
	ExpiresByType text/css "access plus 24 hours"

	# cache javascript for 1 hour
	ExpiresByType application/x-javascript "access plus 1 hour"
	# set the default to 24 hours
	ExpiresDefault "access plus 24 hours"

	Header set Cache-Control "must-revalidate"
	</IfModule>

	# Make sure proxies don't deliver the wrong content
	Header append Vary User-Agent env=!dont-vary
	SetHandler perl-script
	PerlHandler RT::Mason
</Location>


Please test and see if any of these help or not.

Regards,
Ken