Hi 

We are setting up an EC2 access node in AWS to take backups from our Aurora Postgres estate. We use Amazon Linux 2 for all our EC2 deployments - but it seems for Aurora PostgreSQL its not supported.  

Why is it OK for Aurora MySQL but not Aurora PostgreSQL??? It seems a bit odd that the linux OS offered by AWS wouldn’t be supported.

We would prefer to avoid RHEL as it would have cost / license implications (we use RHEL for on-prem deployments) and CentOS is a discontinued Linux distribution. Additionaly RHEL7 is a 10 years old OS that ends maintenance support in June 2024

We are extremely keen to avoid windows because:

(1) It stores Temp files on the access node will taking backup - (we are finding that failed jobs don’t clean up the temp files and eventually fill the temp space) - we want the data to just pass through the node -  and not provision an expensive big EBS volume - we will be backing up multiple TB’s every night

(2) It involves extra annoying configuration from our end to join AD 



Aurora MySQL
Amazon Linux 2 on ARM64 (AWS Graviton), x86-64

CentOS 7.x

Red Hat Enterprise Linux 7.x

Red Hat Enterprise Linux 8.x

Windows 2012

Windows 2016

Aurora PostgreSQL

Red Hat Enterprise Linux 7.x

CentOS 7.x

Windows 2012

Windows 2016

Windows 2019