CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3.1filesizelogging
Jason
Jason

Reputation: 381

Ruby on rails log file size too large

I stumbled to learn that my rails3.1 log file is super large, around 21mb. Is this, in terms of size normal? What the log file would like in the production environment? Besides, can I get rid of the log?thanks

Upvotes: 35

Views: 31347

Answers (10)

Bernie Chiu
Bernie Chiu

Reputation: 263

It is now possible to configure the log_file_size in the latest version of Rails. This information may be useful for you.

REF: https://guides.rubyonrails.org/configuring.html#config-log-file-size

Upvotes: 0

Jellicle
Jellicle

Reputation: 30236

If you don't like waiting for rake log:clear to load its environment and only want to clear one log on the fly, you can do the following:

cat /dev/null > log/mylog.log # Or whatever your log's name is

(This allows the log to stay online while the app is running, whereas rm log/mylog.log would require restarting the app.)

Upvotes: 1

Dorian
Dorian

Reputation: 23979

A fair compromise, in an initializer:

Rake::Task['log:clear'].invoke if Rails.env.development? || Rails.env.test?

Upvotes: 0

Drew Stephens
Drew Stephens

Reputation: 17827

I automatically clear the logs in development on each server start with config/initializers/clear_development_log.rb:

if Rails.env.development?
  `rake log:clear`
end

Upvotes: 6

Artur INTECH
Artur INTECH

Reputation: 7316

config.logger = ActiveSupport::Logger.new(nil) does the trick and completely disables logging to a file (console output is preserved).

Upvotes: 0

ThienSuBS
ThienSuBS

Reputation: 1622

Yes, You can using syntax like this:

config.logger = ActiveSupport::Logger.new(config.log_file, num_of_file_to_keep, num_of_MB*1024*1024)

Example:

config.logger = ActiveSupport::Logger.new(config.log_file, 2, 20*1024*1024)

It not only using for Rails log, you can using log file of any services run with rails, such as: rpush log, ...

Upvotes: 3

Fellow Stranger
Fellow Stranger

Reputation: 34043

According to the documentation, if you want to limit the size of the log folder, put this in your 'development.rb'-file:

config.logger = ActiveSupport::Logger.new(config.paths['log'].first, 1, 50 * 1024 * 1024)

With this, your log files will never grow bigger than 50Mb. You can change the size to your own preference. The ‘1’ in the second parameter means that 1 historic log file will be kept, so you’ll have up to 100Mb of logs – the current log and the previous chunk of 50Mb.

Upvotes: 13

Michael Durrant
Michael Durrant

Reputation: 96494

you can just delete the file!
Rails will create a new log if one doesn't exist.
Obviously save / backup the file if it's important, but usually it's not.
You can also zip the backuped up file (and then delete the source) if you want to keep it on the same drive but still save space.

To automatically rotate log files (the best long-term solution) use log rotate as described here:

Ruby on Rails production log rotation

then you can set it and forget it!

To actually change what gets logged see:

http://dennisreimann.de/blog/silencing-the-rails-log-on-a-per-action-basis/

Upvotes: 29

Raj Adroit
Raj Adroit

Reputation: 3888

The log folder of your Rails application holds three log files corresponding to each of the standard environments. Log files can grow very large over time. A rake task is provided to allow the easy clearing of the log files.

rake log:clear
# Truncates all *.log files in log/ to zero bytes 
# Specify which logs with LOGS=test,development,production

Upvotes: 81

htanata
htanata

Reputation: 36944

You may want to use logrotate. Have a look at the answer to this question: Ruby on Rails production log rotation.

Upvotes: 5

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