Deploying JRuby on Google App Engine - igvita.com
By Ilya Grigorik on September 23, 2009 Following the Java support announcement for Google App Engine back in April there was a small flurry of excitement about the possibility of JRuby on GAE. However, while the notion was appealing, the execution was lacking - you had to do backflips to get JRuby, servlets, and XML configs all properly bundled. Compared to the aesthetically pleasing experience of
Ruby Proxies for Scale and Monitoring - igvita.com
By Ilya Grigorik on April 20, 2009 Lift the curtain behind any modern web application and you will find at least a few proxy servers orchestrating the show. Caching proxies such as Varnish and Squid help us take the load of our application servers; reverse proxies such as Haproxy and Nginx help us partition and distribute the workload to multiple workers, all without revealing the underlying archi
Nginx and Memcached, a 400% boost! - igvita.com
By Ilya Grigorik on February 11, 2008 If web architectures, performance, or scalability are topics you would like to keep on top of (who doesn't!), then chances are, you've heard of Nginx ("engine x"). Originally developed by Igor Sysoev for rambler.ru (second largest Russian web-site), it is a high-performance HTTP server / reverse proxy known for its stability, performance, and ease of use. The
Distributed Logging: Syslog-ng & Splunk - igvita.com
By Ilya Grigorik on October 22, 2008 If you haven't already, I encourage you to take Splunk for a test drive. While there is no shortage of distributed log aggregators on the market, few if any come with as much flexibility and firepower when it comes to indexing and search when you need to find a needle in a haystack of log data. After deploying it for a collection of Ruby applications using a si
Asynchronous HTTP Cache Validations - igvita.com
By Ilya Grigorik on October 07, 2008 HTTP caching can go a long way to help scale a web application - instead of dynamically serving every single request, we can use memcached, Squid, Varnish, or a multitude of other tools to respond in just a few milliseconds. However, as developers at Yahoo have noted, there is a common failure scenario that is often left unaccounted for: what happens when the c
Monit makes Mongrel play nice! - igvita.com
By Ilya Grigorik on November 07, 2006 It's 8am am on a Monday morning, having finished my breakfast I park my enormous coffee mug on the desk, fire up Firefox and point it to my paradigm-shifting Rails application. I want to check the overnight activity, but instead Apache is shouting back at me: "Service is temporarily unavailable"! What happened!? (Insert a sarcastic Monday morning joke here) We
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Splunk Your Distributed Logs in EC2 - igvita.com