Rails Log Analyzers

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
2. 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)
3. 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
4. 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)
5. Railscast.com’s Request Profiling

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