Re: Auto-scaling
Almost the exact same code can be used to scale DJ stuff. If you check out the "Hooks" section of DJ, https://github.com/collectiveidea/delayed_job, you can see it supports the same kind of hooks resque does, specifically the ones needed for auto-scaling, `enqueue` and `after`. You can take the code from my blog post about resque, and massage it into those methods in your DJ job class, and it should work pretty much the same way. -- You received this message because you are subscribed to the Google Groups "Heroku" group. To post to this group, send email to heroku@googlegroups.com. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
Re: Auto-scaling
I imagine that the concept would be similar. I don't think DJ supports the callbacks that Resque does though - so at the end of each Job you'd need to call a method manually to check on what the outstanding depth on the job queue is and adjust the workers. The only problem with DJ is that because it requeues failed jobs for retrying then potentially you'd have to take that into account when setting the number of workers - query the jobs table to see how many are current rather than future, and go off that? -- You received this message because you are subscribed to the Google Groups "Heroku" group. To post to this group, send email to heroku@googlegroups.com. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
Re: Auto-scaling
What about auto-scaling for delayed_jobs instead of resque? On Jan 15, 10:24 pm, John Maxwell wrote: > The Heroku gem itself can do this for you - if you put in a before or > after_filter a quick check on HTTP_X_HEROKU_QUEUE_DEPTH or > HTTP_X_HEROKU_QUEUE_WAIT_TIME > depending on your criteria, then use the gem to add or remove a dyno as > suits you. Look > athttp://blog.darkhax.com/2010/07/30/auto-scale-your-resque-workers-on-...for > inspiration on how to do it. -- You received this message because you are subscribed to the Google Groups "Heroku" group. To post to this group, send email to heroku@googlegroups.com. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
Re: Auto-scaling
The Heroku gem itself can do this for you - if you put in a before or after_filter a quick check on HTTP_X_HEROKU_QUEUE_DEPTH or HTTP_X_HEROKU_QUEUE_WAIT_TIME depending on your criteria, then use the gem to add or remove a dyno as suits you. Look at http://blog.darkhax.com/2010/07/30/auto-scale-your-resque-workers-on-heroku for inspiration on how to do it. -- You received this message because you are subscribed to the Google Groups "Heroku" group. To post to this group, send email to heroku@googlegroups.com. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
