Hi all,
I'm fighting with the after_fork hook and my sinatra application. The Sinatra
app is using active_record,
In my unciron.rb file I'm using
preload_app true
after_fork do |server, worker|
defined?(ActiveRecord::Base) and
ActiveRecord::Base.establish_connection
End
but I always get the error:
ERROR -- : ActiveRecord::AdapterNotSpecified (ActiveRecord::AdapterNotSpecified)
I'm using unicorn (4.3.1), sinatra (1.3.2), activerecord (3.2.6), ruby 1.9.3p194
The app (test.rb):
require 'rubygems'
require 'sinatra'
require 'active_record'
ActiveRecord::Base.establish_connection(
:adapter => 'sqlite3',
:database => '/tmp/dbfile'
)
class User < ActiveRecord::Base
end
get '/' do
@users = User.all
"This is a Sinatra test. We have #{@users.count} users."
end
The config.ru
require './test'
run Sinatra::Application
The config/unicorn.rb
@dir = '/home/frankr/tmp/sinatra/'
pidfile = " #{@dir}log/unicorn.pid"
worker_processes 3
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and GC.copy_on_write_friendly = true
timeout 30
listen '/tmp/sinatra.socket', :backlog => 64
pid pidfile
stderr_path "#{@dir}log/unicorn.stderr.log"
stdout_path "#{@dir}log/unicorn.stdout.log"
before_fork do |server, worker|
defined?(ActiveRecord::Base) and
ActiveRecord::Base.connection.disconnect!
end
end
after_fork do |server, worker|
defined?(ActiveRecord::Base) and
ActiveRecord::Base.establish_connection
end
when I start unicorn
unicorn -c config/unicorn.rb -E production -D -l 0.0.0.0:3001
the unicorn.stderr.log file is growing and growing and repeating the same error
message:
.
E, [2012-08-31T07:18:39.232254 #29793] ERROR -- :
ActiveRecord::AdapterNotSpecified (ActiveRecord::AdapterNotSpecified)
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:22:in
`spec'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:127:in
`establish_connection'
config/unicorn.rb:54:in `block in reload'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:565:in
`call'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:565:in
`init_worker_process'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:589:in
`worker_loop'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:487:in
`spawn_missing_workers'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:137:in
`start'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/bin/unicorn:121:in
`<top (required)>'
/home/frankr/.rbenv/versions/1.9.3-p194/bin/unicorn:23:in `load'
/home/frankr/.rbenv/versions/1.9.3-p194/bin/unicorn:23:in `<main>'
I, [2012-08-31T07:18:39.232514 #29790] INFO -- : master process ready
E, [2012-08-31T07:18:39.232758 #29796] ERROR -- :
ActiveRecord::AdapterNotSpecified (ActiveRecord::AdapterNotSpecified)
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:22:in
`spec'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:127:in
`establish_connection'
config/unicorn.rb:54:in `block in reload'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:565:in
`call'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:565:in
`init_worker_process'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:589:in
`worker_loop'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:487:in
`spawn_missing_workers'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:137:in
`start'
/home/frankr/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/unicorn-4.3.1/bin/unicorn:121:in
`<top (required)>'
/home/frankr/.rbenv/versions/1.9.3-p194/bin/unicorn:23:in `load'
/home/frankr/.rbenv/versions/1.9.3-p194/bin/unicorn:23:in `<main>'
E, [2012-08-31T07:18:39.232976 #29790] ERROR -- : reaped #<Process::Status: pid
29793 exit 1> worker=0
.
I get the same error, when using different database adapter. On the other hand
everything is working fine, when repeating the database configuration in
after_fork hook, or completely remove database configuration from Sinatra app
into after_fork hook. But this is not a solution for me. First I don't like to
double code, second I need the database configuration in the Sinatra app for
running tests .
My question is what am I doing wrong? All documentation says that
defined?(ActiveRecord::Base) and
ActiveRecord::Base.establish_connection
end
should work.
Regards,
Frank
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