Rails Log Analyzers

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

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

The Action Profiler lets you profile actions to determine points of optimization.
- See attachment for the error when running action_profiler ChartController#index
- Madhu thinks it requires Production Log Analyzer (which requires SyslogLogger)
rawk.rb
(recommended by Railscast.com)
- production.log.1 (small log file ~25MB) shows _{21,300 requests}
- _{production.log (large log file ~400MB)}_{—shows only}27,200 requests
- Both took about a miute to scan and since only 7,000 difference in requests, we think Rawk is not working
- 07/23/08: Tried ruby rawk.rb ../log/production.log on sdev but hung for long time and never returned
Hodel3000CompliantLogger
- Looks like it’s working but requires mongrel_rails start instead of ruby script/server. Cannot use it easily with Litespeed probably.
- Uses Production Log Analyzer but circumvents SyslogLogger (unlke Action Profiler above)
Railscast.com’s Request Profiling

TEAC 1.44MB USB External Floppy Disk Drive (Black) (Personal Computers)