If they are using EC2 hosts, I wonder why they don't use AWS SQS/SNS for their q... | Hacker News

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		alttab on July 19, 2014 \| parent \| context \| favorite \| on: How Instagram Feeds Work: Celery and RabbitMQ If they are using EC2 hosts, I wonder why they don't use AWS SQS/SNS for their queue systems and Dynamo for their materialized views.

adamnemecek on July 19, 2014 [–]

Probably due to lock in.

SnorkelTan on July 19, 2014 | [–]

Isn't the cost of those services also a function of the number of requests? E.g. they bill on a request basis, not an hourly cpu time basis?

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