[Backgroundrb-devel] Fails to start via Capistrano?

Samer Masry enzodm at gmail.com
Sat Feb 7 10:26:46 EST 2009


For my production environment is use

run "#{deploy_to}/current/script/backgroundrb start -- 
environment=#{environment}\""

Try passing it as a parameter
-Samer Masry
dryBlis


On Feb 7, 2009, at 12:02 AM, andrew at workingtechnology.co.uk wrote:

> Hi,
>
> I have a production environment setup on CentOS 5.2. Latest versions  
> of backgroundrb and associated gems.
>
> When I run script/backgroundrb start directly from the command line  
> on the server is starts fine.
>
> "RAILS_ENV=production script/backgroundrb start"
>
> However the following capistrano task doesn't seem to work  
> correctly. It creates the pid file containing what looks like a  
> valid id but when looking for the running process with "ps -aux |  
> grep background" nothing is found (whereas a process is listed if  
> started via command prompt).
>
> If I start the backgroundrb script manually at the command prompt  
> and then run the cap task to restart it doesn't give any errors, it  
> stops normally (no errors regarding missing process) and appears to  
> restart normally. However on inspection you can see there is no  
> process running after starting via cap.
>
> No obvious errors are generated in any logs. Has anyone experienced  
> anything similar or have any pointers on where to start looking?
>
> Thanks, Andrew.
>
> ==backgroundrb.yml==
>
> :backgroundrb:
>  :port: 11006
>  :ip: 0.0.0.0
>  :environment: production
>  :persistent_delay: 10
>
> ==deploy.rb==
>
> ssh_options[:paranoid] = false
> default_run_options[:pty] = true
>
> set :user, 'deploy'
> set :runner, 'deploy'
> set :use_sudo, false
>
> role :app, "192.168.10.60"
> role :web, "192.168.10.60"
> role :db,  "192.168.10.60", :primary => true
>
> ...
>
> desc "Restart Backgroundrb"
> task :restart_backgroundrb, :roles => [:app] do
>  run "cd #{current_path} && RAILS_ENV=production script/backgroundrb  
> stop"
>  run "cd #{current_path} && RAILS_ENV=production script/backgroundrb  
> start"
> end
>
> ==output==
>
> $ cap restart_backgroundrb
>  * executing `restart_backgroundrb'
>  * executing "cd /var/webapps/optics/current && RAILS_ENV=production  
> script/backgroundrb stop"
>    servers: ["192.168.10.60"]
> Password:
>    [192.168.10.60] executing command
> ** [out :: 192.168.10.60] /var/webapps/optics/releases/ 
> 20090203095224/vendor/plugins/backgroundrb/lib/backgroundrb/ 
> bdrb_start_stop.rb:6:in `getpgid'
> ** [out :: 192.168.10.60] :
> ** [out :: 192.168.10.60] No such process
> ** [out :: 192.168.10.60] (
> ** [out :: 192.168.10.60] Errno::ESRCH
> ** [out :: 192.168.10.60] )
> ** [out :: 192.168.10.60] from /var/webapps/optics/releases/ 
> 20090203095224/vendor/plugins/backgroundrb/lib/backgroundrb/ 
> bdrb_start_stop.rb:6:in `kill_process'
> ** [out :: 192.168.10.60] from /var/webapps/optics/releases/ 
> 20090203095224/vendor/plugins/backgroundrb/lib/backgroundrb/ 
> bdrb_start_stop.rb:56:in `stop'
> ** [out :: 192.168.10.60] from /var/webapps/optics/releases/ 
> 20090203095224/vendor/plugins/backgroundrb/lib/backgroundrb/ 
> bdrb_start_stop.rb:56:in `each'
> ** [out :: 192.168.10.60] from /var/webapps/optics/releases/ 
> 20090203095224/vendor/plugins/backgroundrb/lib/backgroundrb/ 
> bdrb_start_stop.rb:56:in `stop'
> ** [out :: 192.168.10.60] from script/backgroundrb:36
>    command finished
> failed: "sh -c \"cd /var/webapps/optics/current &&  
> RAILS_ENV=production script/backgroundrb stop\"" on 192.168.10.60
>
>
>
>
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