Here are the ones I tried. Hope the comments aren’t too confusing

1. Simple Rails Log Query Analyzer
   • Ran ruby bin/query_log_analyzer.rb ../log/production.log
     • production.log.1 (small log file ~25MB) Just printed the “Totals” heading with no results
     • production.log (large log file ~400MB) Ran for a long time and nothing happened

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Tags: log analyzers, logger, logs, production.log, query, rails, railscast.com, rawk.rb, ruby on rails

I noticed this error during a deployment of numerous servers that were configured with litespeed, postgreSQL, and ruby. The installation process was to install ruby, install ruby gems, install postgreSQL, install litespeed, and then sync up the web directory using SVN. After doing so connect via a browser to the server to test things out. On one server I was getting a “503 Service Unavailable” error. The lshttpd(litespeed) logs looked like the below example.

lshttpd errors

After a bit of searching I pinned the issue down to having missed installing one of the ruby gems. If you are in this situation use the “gem list” command to list all of the gems on the server and make sire that you are not trying to load gems that are not installed. Once the missing gem was installed there were no more 503 errors and things were rocking.

I created this site as a way for people to post errors, get responses, and learn in general. I have been a sysadmin in some sort of capacity for going on 10 years now and am just getting around to tackling being a programmer. Currently I have some shell scripting experience but overall I am just not a programmer. I doubt this will get many responses right away since the site is so new but I wanted feedback on what peoples opinion on the path someone should take to become a programmer. I am mad at myself for not jumping into this earlier but better late than never. I have decided to learn using Ruby and technically Ruby on Rails.
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Ruby on Rails 1.2 and above automatically set a Content-type header including charset=UTF-8, which is well and good if you’re designing an application from scratch - JoelOnSoftware has a good introduction to character sets, for those who need a refresher - but breaks things in subtle ways if you are upgrading a legacy Rails 1.1 application. The (poorly documented at best) solution to this problem is to add a line to the config block of environment.rb to set config.action_controller.default_charset:

Rails::Initializer.run do |config|
  config.action_controller.default_charset = "iso-8859-1"
end

I just installed FiveRuns TuneUp it’s great! A small header shows up on all your apps (see attachment). I run it locally only

It’s drop dead easy to install:

• To add TuneUp to your Rails application, install the gem:

sudo gem install fiveruns_tuneup

• Then, for a Rails 2.0.x app, run:

fiveruns_tuneup /path/to/rails/app

• For a Rails 2.1 app, update your environment.rb to include this line:

config.gem ‘fiveruns_tuneup’

• Launch your Rails app and you’ll see the header to sign up for for a free account view the stats.