By Matt Pelletier, Zed A. Shaw
This brief reduce is an creation and advisor to Mongrel, a quick, flexible RubyWeb server. when you construct or deal with internet functions, this can be a usefulreference as you put up and use Mongrel on your improvement and productionenvironments, in addition to a guide for the way you could expand Mongrel to suityour personal needs.In addition to overlaying tips to use and expand Mongrel, we additionally evaluation anumber of issues that we ponder "Best Practices" for contemporary software program development,deployment, and function checking out. We talk about those in thecontext of utilizing Mongrel, yet they need to be thought of acceptable to anysoftware venture. Our personal paintings has continuously benefited from seeing the techniquesof others, so we are hoping that sharing the adventure, procedure, andphilosophy that went into designing and constructing Mongrel may be interestingand worthy in your personal pursuits.Section 1: What This brief reduce Covers 4Section 2: advent 6Section three: Getting all started 13Section four: Configurations 20Section five: construction Deployment 37Section 6: Extending Mongrel 60Section 7: Debugging 79Section eight: functionality 90Section nine: safety 96Resources 103Acknowledgments 105About the Authors 106"
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If they accept it then we set the "Content-Encoding" to "deflate" and we deflate compress the body using Ruby's Zlib::Deflate API. Notice that we have to do some shuffling of the response body. If we were to gzip the response directly, and the previous handler had attached a file to send, then we'd be gzip their files silently. 4. Instead we deflate their file into a StringIO, detach it and send it on, closing the original. This filter isn't put on the handler chain with :in_front so it will happen after ParamDumper.
1. "Dash-Bee" Logging The main logging people use is "Dash-Bee" or just -B for the mongrel_rails option that enables all of the available logging filters. It's very easy: mongrel_rails start -e production -B Once you run your Rails application this way, you'll get tons of information from the log/mongrel_debug directory. Notice that we started in production mode. This is done because in debuggin mode Mongrel is painfully slow, and also Rails development mode does quite a few nasty things to Ruby, which can skew your debugging output.
It's a good idea to test each component in order from back to front, and then test them as one whole. If you were smart you'd also automate this test process and include it in your post-production deployment process. 4. Cheap Simple Caching Normally you'll need to set up Apache mod_rewrite rules of varying complexity levels to take advantage of Rails' page caching. Since you have a front-facing web1 server you'll have to do some research to find a way to share disk with app1. This is fairly complex but there is a quick and dirty way around it for many people's applications: mod_cache.