I've got an application that is built in node.js, and is primarily used to post photos to (up to 25mb). The app resizes to thumbnail size, and moves both the thumbnail and full size image to S3. When the uploads begin happening, they usually come in bursts of 10-15 pictures, rinse, wash, repeat in 5 minute durations. I'm seeing a lot of scaling, and the trigger is the default 6MB NetworkOut trigger. My question is, is the moving the photos to S3 considered NetworkOut? Or should I consider a different scaling trigger, so far the app hasn't stuttered so I'm hesitant to not fix what ain't broken, but I am seeing quite a big of scaling so I thought I would investigate. Thanks for any help!
2 Answers
I suggest getting familiar with the instance metrics. You can then recognize your app-specific bottlenecks on the current instance type and count.
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/health-enhanced-metrics.html
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