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EC2 instances can be rebooted at any time. The underlying hardware they are on fails from time to time and they get moved. Running three nodes is a rule of thu
by jameshart 3y ago
EC2 instances can be rebooted at any time. The underlying hardware they are on fails from time to time and they get moved.
Running three nodes is a rule of thumb, not a hard rule for minimally guaranteeing availability.
- YetAnotherNick 3y ago> EC2 instances can be rebooted at any time No, they can't be rebooted any time. Where are you getting this information from?
- jameshart 3y agohttps://repost.aws/knowledge-center/ec2-linux-degraded-hardware https://repost.aws/knowledge-center/ec2-linux-degraded-hardw... Note in particular: > For instances that launched from an Amazon EC2 Auto Scaling group, the instance termination and replacement occur immediately
- YetAnotherNick 3y ago> Amazon EC2 also sends a notification in your email Interesting. I had seen EC2 instances running for multiple years and never saw this so I assumed that this isn't possible. I know for a fact that GCP has live migration where while the service would be degraded for few seconds, you don't need to do anything so I assumed AWS also had something similar.