Re:A serverless email server on AWS using S3 and SES
by MaxBarraclough on Saturday January 04, 2020 @04:36PM
(#21957760)
> I think you run RDS on an EC2 instance, so it’s basically just a normal virtual server running Amazon’s managed version of the RDBMS
Yes I think that's right. That is to say, it doesn't give you replication.
> I’m not sure what happens if an instance “fails” but I assume you can have downtime if Amazon needs to move your VM, just like EC2, but I assume Amazon handles moving the instance and restarting it.
No need for the quotation marks, that's the correct terminology. Your suspicions seem to be right on - it looks like RDS handles instance-failure for you, with non-trivial downtime, but no data-loss. [0]
Yes I think that's right. That is to say, it doesn't give you replication.
> I’m not sure what happens if an instance “fails” but I assume you can have downtime if Amazon needs to move your VM, just like EC2, but I assume Amazon handles moving the instance and restarting it.
No need for the quotation marks, that's the correct terminology. Your suspicions seem to be right on - it looks like RDS handles instance-failure for you, with non-trivial downtime, but no data-loss. [0]
https://aws.amazon.com/blogs/database/amazon-rds-under-the-h...