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RDS restarting without notification
Hi there,
We recently got our production database restarted without any prior notice. It "just happened", and we noticed a huge spike of error logs in our system within a 1m period even though auto maintenance was disabled.
I've checked all our past communication emails from AWS regarding maintenance. I've also checked the health dashboard regarding recent activities, and no mention of a database patch that needs to happen, but this is what I saw on the event log on our RDS instance.
I've seen another post from a year ago, but the response was not helpful at all. https://repost.aws/questions/QUAWvhHEaDRSik2D8G7jSlYA/why-were-my-rds-instances-were-patched-in-maintenance-window-without-a-warning
I ran aws rsd describe-events too, but there is no additional information.
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Hi,
Is the time at which the patching happened in the maintenance window defined for your instance: see https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.Maintenance.html ?
That would explain why.
Despite your error message says "patching", you may also want to check if a certificate rotation happened at this moment: see https://repost.aws/articles/ARn1bgsXUlTOSXf2gosmD5pw/announcement-rds-aurora-ssl-tls-certificates-are-expiring-between-may-and-october-2024
Best,
Didier
Yes, it did seem that it happened within the maintenance window.
Regarding the TLS update, we've updated that a couple of months ago, so it's definitely not it. Our schedule was in August as well.
answered 2 years ago
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