How do I make my web server highly available across AWS Regions?

A

Alexey Chernyshev2011-05-05 12:50:19

Amazon Web Services

Alexey Chernyshev, 2011-05-05 12:50:19

Is it possible to organize multi-region failover for EC2 instances on Amazon Web Services using the services they provide?

So far, there is only one option in my head with replacing records in the DNS during a system crash, but it is too long. What are your suggestions?

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3 answer(s)

A

A1lfeG, 2011-05-05
@A1lfeG

There is an Elastic IP, which is assigned to an instance very, very quickly.
Plus, there is Load Balancer and Detailed monitoring for all instances, which allows you to configure alarms and actions for these alarms.

S

Sergey, 2011-05-05
@bondbig

an option to replace records in the DNS during a system crash, but it is too long.

set TTL 60 seconds and rejoice. Both increased load on the DNS server and fast switching.

P

Puma Thailand, 2011-05-05
@opium

Here a person mentioned this but did not give a proof, he himself is already interested in how it works, there is no time to delve into the Amazon.
habrahabr.ru/blogs/cloud_computing/118400/#comment_3860077