This is an update to earlier post on Performance and MySQL Indexes. While 10-12 seconds per feed is an improvement, it’s completely unacceptable when we’re talking 2,000+ feeds (full parse would take 5.5 hours) and slow down the system to unusable. In an attempt to find the bottlenecks, I loaded up the query_analyzer plugin on […]
If you’re a Ruby on Rails developer wanting to keep an eye on what’s happening with your production apps, you already know Capistrano will do it for you: cap shell tail -f web/shared/log/production.log1 Thanks to John Nunemaker‘s comment at anodyne.ca 1. Your path may vary.
I’m at the point in the development cycle where performance is the worth working on, for two reasons; everything else that’s going in is in, it’s too slow. After one too many out-of-memory errors and far too many times wondering if I should have purchased a larger server to begin with, I sent an SOS […]
This week, I file my first major complaint with Rails. I was innocently running tests and tweakings some views – when I discovered function that should work longer did. A little background, my app is filled with routes the make the URLs more contextually appropriate and memorable than the standard REST URL construction. If you […]
So, you’ve set up your Rails app to present different views to authenticated people verses non. Now, how do you test functionality for the authenticated people? Seems silly to have your tests sign in before checking whatever it is you want them to check. Well, pass the session data in the test as a hash. […]
First off, if you can avoid reinstalling MySQL on OS X – by all means do. Whatever the reason is that you want to do a reinstall, it’s not a good one1. Just buck up and work around whatever issue you have. It’s not as bad as what follows. Let’s say you decide to reinstall […]
I’ve ignored Rails Tests for too long. In fact, I’ve skipped over Test chapter in Agile Web Development with Rails in both the first and second editions. After fighting with the same bug over and over again, I knew now was the time for tests. On the surface, tests seemed very un-DRY1 – like I’m […]
Right now, I’m heavily reliant on an unsupported (if not completely abandoned) ruby gem library. Historically, I’ve just gem install bizarro-gem and moved on. A couple of issues have changed my perspective: My host, textdrive, doesn’t allow installing bizarro gems on their shared servers and I’ve had difficulty freezing them, so I worked around the […]
“My advice to young people is to get a computer science degree, if for no other reason than you can avoid those odd jobs and get right to the programming.” – Brent Simmons I’m continually bumping up against my ignorace of good programming practices that one would get in Comp. Sci. 101. Not that it […]
def reverse_tinyurl(tinyurl) require ‘open-uri’ require ‘net/http’ url = Net::HTTP.get_response(URI.parse(tinyurl)).to_hash[‘location’].to_s end This should also work for any url that is a known redirect whether it be a tinyurl.com, urltea.com, rubyurl.com, or what have you.