herokuでサーバーのログを参照する

Rails heroku

エラーが発生しているときはログが頼りになりますが、herokuの場合はcommand-line toolを使用します。

環境

コマンド

heroku logsコマンドを使用します。

toshifusa@TOSHIFUSA-PC ~/Documents/NetBeansProjects/assist (master)
$ heroku logs
==> production.log <==
# Logfile created on Thu Apr 01 02:06:59 -0700 2010

Processing ModelsController#index (for 124.155.33.170 at 2010-04-01 02:07:02) [G
ET]
Rendering template within layouts/application
Rendering models/index
Completed in 31ms (View: 25, DB: 8) | 200 OK [http://bwz.heroku.com/]


Processing ModelsController#search (for 124.155.33.170 at 2010-04-01 02:07:39) [
POST]
  Parameters: {"cmd"=>"1", "authenticity_token"=>"M+k/Sdpke+0NU/YRbFI+L47cb4mvc/
2xOlIidPkbvNM=", "model_id"=>"3"}

ActionView::TemplateError (missing attribute: bb_count) on line #26 of app/views
/models/_log_summary.html.erb:
23:     <td><%=h number_with_delimiter(machine_log.margin) %></td>
24:     <td><%=h number_with_precision(machine_log.sales.to_f / machine_log.in_c
ount.to_f, :precision => 2) %></td>
25:     <td><%=h number_with_precision(machine_log.margin.to_f / machine_log.in_
count.to_f, :precision => 2) %></td>
26:     <td><%=h number_with_delimiter(machine_log.bb_count) %></td>
27:     <td><%=h number_with_delimiter(machine_log.rb_count) %></td>
28:   </tr>
29: <% end %>

    app/views/models/_log_summary.html.erb:26
    app/views/models/_log_summary.html.erb:15:in `each'
    app/views/models/_log_summary.html.erb:15
    app/controllers/models_controller.rb:27:in `__instance_exec0'
    app/controllers/models_controller.rb:24:in `search'
    /home/heroku_rack/lib/static_assets.rb:9:in `call'
    /home/heroku_rack/lib/last_access.rb:25:in `call'
    /home/heroku_rack/lib/date_header.rb:14:in `call'
    thin (1.0.1) lib/thin/connection.rb:80:in `pre_process'
    thin (1.0.1) lib/thin/connection.rb:78:in `catch'
    thin (1.0.1) lib/thin/connection.rb:78:in `pre_process'
    thin (1.0.1) lib/thin/connection.rb:57:in `process'
    thin (1.0.1) lib/thin/connection.rb:42:in `receive_data'
    eventmachine (0.12.6) lib/eventmachine.rb:240:in `run_machine'
    eventmachine (0.12.6) lib/eventmachine.rb:240:in `run'
    thin (1.0.1) lib/thin/backends/base.rb:57:in `start'
    thin (1.0.1) lib/thin/server.rb:150:in `start'
    thin (1.0.1) lib/thin/controllers/controller.rb:80:in `start'
    thin (1.0.1) lib/thin/runner.rb:173:in `send'
    thin (1.0.1) lib/thin/runner.rb:173:in `run_command'
    thin (1.0.1) lib/thin/runner.rb:139:in `run!'
    thin (1.0.1) bin/thin:6
    /usr/local/bin/thin:20:in `load'
    /usr/local/bin/thin:20

Rendering /disk1/home/slugs/142966_1a8de2d_4e75/mnt/public/500.html (500 Interna
l Server Error)

==> dyno-1001087.log <==
>> Thin web server (v1.0.1 codename ?)
>> Maximum connections set to 1024
>> Listening on 0.0.0.0:26694, CTRL+C to stop