Behind the scenes, AWS Lambda

Re:Behind the scenes, AWS Lambda by rorykoehler on Saturday July 10, 2021 @12:26PM (#27794501)

Based on how they bill it, it looks like it's running on VMs

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Re:Behind the scenes, AWS Lambda by StratusBen on Saturday July 10, 2021 @01:10PM (#27794874)

Agreed. AWS RDS instance types are just EC2 instance types prefixed with "db." and you're choosing either single-AZ or multi-AZ deployments so presumably AWS is just spinning up 1 to 3 EC2 instances with some preconfigured software on them.

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Re:Behind the scenes, AWS Lambda by navaati on Saturday July 10, 2021 @01:23PM (#27794978)

From what I know there is a secret sauce beyond a mere AMI and a control plane, based on some EBS volumes magic. I may be mixing things up with Aurora though.

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Re:Behind the scenes, AWS Lambda by fierro on Saturday July 10, 2021 @02:04PM (#27795240)

this is very, very safe to assume. There is probably a hundred engineer's worth of "secret sauce" for an entire managed DB product line.

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Re:Behind the scenes, AWS Lambda by aeyes on Saturday July 10, 2021 @03:08PM (#27795677)

There were some comments in the early days that the Multi-AZ magic for classic RDS was just drbd on top of EBS.

Aurora is a completely different approach where the RDBMS code is modified to directly interface with EBS instead of going through a traditional OS filesystem layer.

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Re:Behind the scenes, AWS Lambda by rrdharan on Saturday July 10, 2021 @06:30PM (#27796936)

Amazon published a paper describing how Aurora works:

https://www.allthingsdistributed.com/files/p1041-verbitski.p...

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