Re: Apache and Tomcat: Proxy, Caching and Compression configuration

Thanks a lot for your comments. I am trying not to take static
resources out of tomcat as it would make deployment slightly more
complicated, but I have it in mind as soon as I run into performance
issues.

I am struggling a little bit with the split points: although http
headers are set to expire in far future, the browser keeps reloading
the split points (the .js files).

I will update my posting to include your comments asap.

brgds,

Papick

On Jan 27, 2:31 pm, Ed <post2edb...@gmail.com> wrote:
> Thanks.
> A few things:
> - ProxyPassReverse don't work with ajp...
> See:http://www.humboldt.co.uk/2009/02/the-mystery-of-proxypassreverse.html
> You can simple test it by performing a redirect on tomcat
>
> - Almost all browsers nowedays support gzip, so why not gzip them by
> default..?.. instead of gzipping them on every http request... not
> needed...
> You can tell GWT to output all your files as gzip. Then use apache
> httpd multiview to send the correct file.
> Then let apache httpd inflate the file if you encounter a browser that
> doesn't support gzip..(rare these days).
>
> - Use Yslow plugin for FF to fine tune your settings.
>
> - Don't forget to set the correct caching for the css, images, third
> party js files, etc...
>
> - Put your gwt files directly under apache httpd instead of tomcat
> (noserver mode). Performs much better. Only use tomcat for rpc and
> other backend calls.
> Then you don't need the proxymatch settings and just use Files
> settings...performs a bit better...
>
> - See:http://groups.google.com/group/google-web-toolkit/browse_thread/threa...
>
> I got this all working very nice and you notice the performance gain
> big time as I also have the nightly build without all these optimized
> http settings...
>
> Here you got a http snippet that I use, hope it helps you:
> ----
> # Add inflate (uncompress) filter that will be used when the browser
> doesn't support
> # gzip
> # Ref:http://httpd.apache.org/docs/2.2/mod/mod_filter.html
>  FilterDeclare gzinflate CONTENT_SET
>  FilterProvider gzinflate inflate req=Accept-Encoding !$gzip
>
> # set up Multiviews:
> # Ref:
> #http://www.w3.org/International/questions/qa-apache-lang-neg
> #http://httpd.apache.org/docs/current/content-negotiation.html
> #http://everything2.com/title/How+to+get+Apache+to+send+compressed+ver...
> # Note: make sure to not set the "AddType application/x-gzip .gz .tgz"
> as then all the gzp files will
> # be returned with the wrong content-type (as gzip instead as the
> zipped content: js/css, etc...)
>
>  Options +MultiViews
>  AddEncoding x-gzip .gz
>  RemoveType application/x-gzip .gz .tgz
>
>  # Enabled the inflate filter
>  FilterChain gzinflate
>
> # GWT Optimization.
> # ref:
> #http://www.infoq.com/articles/gwt-high-ajax
> #http://code.google.com/webtoolkit/doc/latest/DevGuideCompilingAndDebu...
> #http://www.samaxes.com/2008/04/htaccess-gzip-and-cache-your-site-for-...
> #http://betterexplained.com/articles/how-to-optimize-your-site-with-gz...
> #http://code.google.com/p/doctype/wiki/ArticleHttpCaching
> #
> ## GWT caching
> #
> <Files *.nocache.*>
>   ExpiresActive on
>   ExpiresDefault "now"
>   Header set Cache-Control "public, max-age=0, must-revalidate"
> </Files>
>
> <Files *.cache.*>
>   ExpiresActive on
>   ExpiresDefault "now plus 1 year"
> </Files>
>
> # Note: this only matches the file name and not the preceding
> directory
> <FilesMatch "\.(gif|jpe?g|png|ico|css|xml)$">
>   ExpiresActive on
>   ExpiresDefault "now plus 3 day"
> </FilesMatch>
>
> <Files ext.js>
>   ExpiresActive on
>   ExpiresDefault "now plus 3 day"
> </Files>
>
> # Tell apache to use the compressed files if possible
> #SetOutputFilter DEFLATE
> #
> # Deflate by type
> AddOutputFilterByType DEFLATE text/plain
> AddOutputFilterByType DEFLATE text/html
> AddOutputFilterByType DEFLATE text/xml
> AddOutputFilterByType DEFLATE text/css
> AddOutputFilterByType DEFLATE application/xml
> AddOutputFilterByType DEFLATE application/xhtml+xml
> AddOutputFilterByType DEFLATE application/rss+xml
> AddOutputFilterByType DEFLATE application/javascript
> AddOutputFilterByType DEFLATE application/x-javascript
>
> # ref:http://developer.yahoo.com/performance/rules.html#etags
> FileETag none

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