amazon-iam
How long should I wait after applying an AWS IAM policy before it is valid?
The phrase “almost immediately” is used 5 times in the IAM FAQ, and is, of course, somewhat subjective. Since AWS is a globally-distributed system, your changes have to propagate, and the system as a whole seems to be designed to favor availability and partition tolerance as opposed to immediate consistency. I don’t know whether you’ve … Read more
AWS lambda invoke not calling another lambda function – Node.js
Note I will denote by executor the lambda that executes the second lambda. Why Timeout? Since the executor is “locked” behind a VPC – all internet communications are blocked. That results in any http(s) calls to be timed out as they request packet never gets to the destination. That is why all actions done by … Read more