We use Ruby v2.2.3, Rails v4.2.4, Unicorn v5.1.0 in production.
ActiveRecord validation rules and callbacks for all models of app has
been disabled after unicorn restart (from log rotation script). Here
it is
/var/www/fitness_crm/shared/log/production.log
/var/www/fitness_crm/shared/log/unicorn.stderr.log
/var/www/fitness_crm/shared/log/unicorn.stdout.log {
daily
missingok
rotate 30
compress
notifempty
create 640 deploy deploy
sharedscripts
postrotate
kill -s USR2 `cat
/var/www/fitness_crm/shared/tmp/pids/unicorn.pid`
endscript
}
We've changed the script to send USR1 instead of USR2, but nothing has
changed. When USR1 is sent validations/callbacks simply keep being
disabled. Here is our unicorn configuration file
working_directory "/var/www/fitness_crm/current"
pid "/var/www/fitness_crm/shared/tmp/pids/unicorn.pid"
stdout_path "/var/www/fitness_crm/shared/log/unicorn.stdout.log"
stderr_path "/var/www/fitness_crm/shared/log/unicorn.stderr.log"
listen "/tmp/unicorn.fitness_crm_production.sock"
worker_processes 8
timeout 30
preload_app true
before_exec do |server|
ENV["BUNDLE_GEMFILE"] = "/var/www/fitness_crm/current/Gemfile"
end
before_fork do |server, worker|
# Disconnect since the database connection will not carry over
if defined? ActiveRecord::Base
ActiveRecord::Base.connection.disconnect!
end
# Quit the old unicorn process
old_pid = "#{server.config[:pid]}.oldbin"
if File.exists?(old_pid) && server.pid != old_pid
begin
Process.kill("QUIT", File.read(old_pid).to_i)
rescue Errno::ENOENT, Errno::ESRCH
# someone else did our job for us
end
end
if defined?(Resque)
Resque.redis.quit
end
sleep 1
end
after_fork do |server, worker|
# Start up the database connection again in the worker
if defined?(ActiveRecord::Base)
ActiveRecord::Base.establish_connection
end
if defined?(Resque)
Resque.redis = 'localhost:6379'
end
end
After this we kill unicorn and start it manually with command:
bundle exec unicorn -D -c
/var/www/fitness_crm/shared/config/unicorn.rb -E production
After this everything is good and validations and callbacks are
enabled again. Please, help to find out what is the reason of such a
behavior and how to fix it.
