is not search friendly. 2013-01-18T15:04:50+09:00 foo { "messages":"Started GET \"/\" for 127.0.0.1 at 2013-01-18 15:04:49 +0900\n Processing by TopController#index as HTML\n Completed 200 OK in 635ms (Views: 479.3ms | ActiveRecord: 39.6ms)"], "level":"INFO" } • Unicorn return weird 404 with act-fluent-logger-rails gem under massive requests. hsatac@KKTIX, 2014 43