rails-3 cron job not working with rails runner

Question

Recently I came across the following tutorial of running cron job without using any Gems
http://www.ameravant.com/posts/recurring-tasks-in-ruby-on-rails-using-runner-and-cron-jobs

I create one file in /app/delete_old_posts.rb

  class DeleteOldPosts < ActiveRecord::Base          
    # This script deletes all posts that are over 5 minutes old          
     post_ids = Post.find(:all, :conditions => ["created_at < ?", 5.minutes.ago])          
     if post_ids.size > 0     
      Post.destroy(post_ids)     
      puts "#{post_ids.size} posts have been deleted!"       
     end

Then create cron job by giving crontab -e command and in console of cronjob I wrote

*/2 * * * * /usr/bin/env ruby /home/abc/xyz/urjit.rajgor/workspace/thewall/rails/runner/home/XYZ/ABC/urjit.rajgor/workspace/thewall/app/delete_old_posts.rb

cron job run after every two minutes but it did not work
Please help me.
Thanks

If that's the actual crontab command, it looks like you're missing a `/` before `home`. — bhamby, Apr 17 '12 at 13:46
Thanks for your reply. But sorry I edited the command there is already / before home but it still not work — urjit on rails, Apr 17 '12 at 13:57

score 1 · Accepted Answer · answered Apr 17 '12 at 16:35

1

Try using the "whenever" gem. Allows you to define your cronjobs in ruby being able to specify rails runner, rake, or other custom wrappers and it handles writing the crontab for you. Makes life much simpler.

Just add: gem 'whenever', :require => falseto your gemfile

https://github.com/javan/whenever

http://railscasts.com/episodes/164-cron-in-ruby

answered Apr 17 '12 at 16:35

cpuguy83

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Thanks for your answer but I try to install it and it gave me this error when I ran wheneverize . command Error is wheneverize: command not found so, can you help me doing this without using any Gem? – urjit on rails Apr 18 '12 at 05:13
1

Did you execute it with bundle exec? – cpuguy83 Apr 20 '12 at 12:48
If you are curious as to why it works now, check out the sytax they use with rails runner. – cpuguy83 Apr 24 '12 at 13:01
hey can you answer http://stackoverflow.com/questions/10256331/whenever-delayed-job-with-cron-job-in-starting-worker – urjit on rails Apr 25 '12 at 09:09

rails-3 cron job not working with rails runner

1 Answers1