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RE: [newtech-1] AWS Cron Jobs

From: Kervin P.
Sent on: Monday, February 25, 2013 6:51 PM
I think the short answer is there's no Amazon specific way to handle this.  The Amazon support engineer that answers the SO question you linked kind of mentions that.  You have distributed locking problem rather and a specific "Cron" or scheduling problem.  If you lock the processes that need to be locked and treated as singletons then the issue goes away. 

My experience with Amazon On-demand Queues ( SQS ) and Workflow ( SWF ) has been that you are likely better off rolling your own on an EC2 instance.  *In general*, the on-demand services make financial sense I believe when your workload fluctuates greatly.  Eg. You have almost zero queue traffic now but may need a few servers in a split second.   With highly unpredictable workloads it doesn't make a lot of sense building out infrastructure sense you don't know how much you'll need, and when you'll need it.  For queues I'd recommend Rabbit MQ as a replacement for SQS.  Gearman, etc are also popular.

Best regards,

Business Web Development

From: [address removed] [mailto:[address removed]] On Behalf Of GC
Sent: Monday, February 25,[masked]:36 PM
To: [address removed]
Subject: [newtech-1] AWS Cron Jobs

Does anyone have experience setting up and running cron jobs via AWS?  I'm aware of Amazon SWF but I'm not 100% sure that this is the right way to go - especially after reading this.  In addition, the SWF SDK is in Java and I'm a JavaScript/PHP person.  I'll keep trying to find a solution but if anyone has already done this, please help.  Thanks.

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