问题
I have added Resque to my Rails 3 project. I have created a job which reads/writes some stuff from/to the DB.
The problem is I do not see the SQL query logs such as "Post Load (0.5ms) SELECT "posts".* FROM "posts"" in the terminal anymore. I am also not seeing any Rails.logger messages I have set up.
When I make yet another request (simple refresh) the logger messages and SQL query logs suddenly show up.
Any ideas what could be going on? Thanks
回答1:
Rails won't write out to the log file immediately, it waits for a certain amount of lines to go by before flushing the file. You can tell Rails to always flush the log by adding this to your development.rb or application.rb file...
config.logger.auto_flushing = true
Only ever do this in development, and never set this in production as it will just kill your I/O.
You can also do it on demand with...
Rails.logger.flush
API documentation here...
http://api.rubyonrails.org/classes/ActiveSupport/BufferedLogger.html#method-i-auto_flushing-3D
回答2:
We experienced the same issue in one of our projects. Additionally we wanted to log all Resque messages to a separate log file too.
In the blog post Enable immediate log messages of resque workers a code sample can be found to enable the immediate logging to a separate file.
回答3:
Resque won't flush the log in production mode (unless your job is generating more than 1000 lines of log).
You will have to flush for every line of log generated. I would configure only resque with the file lib/tasks/resque.rake :
task "resque:setup" => :environment do
Resque.before_first_fork = Proc.new { Rails.logger.auto_flushing = 1 }
end
来源：https://stackoverflow.com/questions/6507215/logging-issues-with-resque