Comments on: Scheduling tasks in Ruby / Rails http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/ A goal is a dream with a deadline. Fri, 29 Aug 2008 04:42:34 +0000 http://wordpress.org/?v=2.5.1 By: sijo http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-104920 sijo Fri, 04 Jul 2008 04:17:59 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-104920 For scheduling what I am doing is to write a task and call it periodically using cron For scheduling what I am doing is to write a task and call it periodically using cron

]]> By: Ilya Grigorik http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-101427 Ilya Grigorik Sun, 10 Feb 2008 20:42:36 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-101427 Hmm, very cool. Haven't seen the CronEdit gem before! Hmm, very cool. Haven’t seen the CronEdit gem before!

]]> By: viz http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-101395 viz Thu, 07 Feb 2008 22:14:26 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-101395 Sometimes the old good *nix Cron jobs can be just the right thing. And instead of writing external scripts (as you noted) you can use <a href="http://cronedit.rubyforge.org/" rel="nofollow">CronEdit</a> gem. Basically, it provides CRUD for cron jobs comfortably from within your code. Sometimes the old good *nix Cron jobs can be just the right thing. And instead of writing external scripts (as you noted) you can use CronEdit gem. Basically, it provides CRUD for cron jobs comfortably from within your code.

]]> By: Ilya Grigorik http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-83348 Ilya Grigorik Fri, 09 Nov 2007 01:14:40 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-83348 Peter, I would add a number of calls to 'logger.info' within your workers to ensure that the tasks are not crashing. Basically, see if you can get any response from backgroundrb. Likewise, double check your config in your Rails app. BackgrounDRB can be rather picky when it comes down to syntax. Pamthree, yes indeed, that's exactly what any of the above solutions are designed for. Anytime you need to do an asynchronous request/task, you should use a separate thread and/or process. Peter, I would add a number of calls to ‘logger.info’ within your workers to ensure that the tasks are not crashing. Basically, see if you can get any response from backgroundrb. Likewise, double check your config in your Rails app. BackgrounDRB can be rather picky when it comes down to syntax.

Pamthree, yes indeed, that’s exactly what any of the above solutions are designed for. Anytime you need to do an asynchronous request/task, you should use a separate thread and/or process.

]]> By: pamthree http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81677 pamthree Mon, 05 Nov 2007 11:48:08 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81677 If i wanted to run a long running task in the background say a pdf generation while allowing the user to navigate to other pages, would the above tasks provide a solution for this? If i wanted to run a long running task in the background say a pdf generation while allowing the user to navigate to other pages, would the above tasks provide a solution for this?

]]> By: Peter Marks http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81482 Peter Marks Sun, 04 Nov 2007 22:51:14 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81482 Thanks for the advice Ilya. My bdrb_server.log file indicates that the server has started without any errors. The last line shows my scheduled_task.rb file loading. Does this mean my worker is registered? Here is transcript of my log if you feel like poking around: http://pastie.caboo.se/114015 Thanks Again, Peter Thanks for the advice Ilya. My bdrb_server.log file indicates that the server has started without any errors. The last line shows my scheduled_task.rb file loading. Does this mean my worker is registered? Here is transcript of my log if you feel like poking around: http://pastie.caboo.se/114015

Thanks Again,

Peter

]]> By: Ilya Grigorik http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81067 Ilya Grigorik Sat, 03 Nov 2007 15:06:38 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81067 Peter, take a close look at the backgroundrb.log and backgroundrb_server.log files. In the latter, make sure your worker is registered and does not crash during the bootup sequence. That's usually the culprit for me! Peter, take a close look at the backgroundrb.log and backgroundrb_server.log files. In the latter, make sure your worker is registered and does not crash during the bootup sequence. That’s usually the culprit for me!

]]> By: Peter Marks http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81010 Peter Marks Sat, 03 Nov 2007 08:22:34 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-81010 Great writeup Ilya. Your example of BackgrounDRB is exactly what I am looking for (the example on Ezra's site is a lot more than I need). However, I'm stuck implementing this. I've installed BackgrounDRB 0.2.1, copied backgroundrb_schedules.yml and scheduled_task.rb into their respective directories, fire up the backgroundrb daemon with "./script/backgroundrb start" and started mongrel. Yet, nothing I put in do_work gets done. Any ideas? Thanks, Peter Great writeup Ilya. Your example of BackgrounDRB is exactly what I am looking for (the example on Ezra’s site is a lot more than I need).

However, I’m stuck implementing this. I’ve installed BackgrounDRB 0.2.1, copied backgroundrb_schedules.yml and scheduled_task.rb into their respective directories, fire up the backgroundrb daemon with “./script/backgroundrb start” and started mongrel. Yet, nothing I put in do_work gets done. Any ideas?

Thanks,

Peter

]]> By: Ilya Grigorik http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-71790 Ilya Grigorik Tue, 25 Sep 2007 13:35:18 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-71790 Ravi, latest BackgrounDRB is *nix only (unfortunately). There's been a lot of talk about a windows version, but as far as I can tell, not much has been actually done about it. Ravi, latest BackgrounDRB is *nix only (unfortunately). There’s been a lot of talk about a windows version, but as far as I can tell, not much has been actually done about it.

]]> By: Ravi Bhushan http://www.igvita.com/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-71436 Ravi Bhushan Mon, 24 Sep 2007 08:38:49 +0000 http://www.igvita.com/blog/2007/03/29/scheduling-tasks-in-ruby-rails/#comment-71436 Any idea how to install backgroundrb on Windows? Any idea how to install backgroundrb on Windows?

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