If the last rounds of 10% of EC2 instance fleet reboot hadn't caused so many issues, it wouldn't have been as worrying. But now again about 10% of the fleet would be automatically rebooted in early march and when you login you should see a message like below:-
Additionally, you will also see the instances that will be rebooted under "Events" tab in the console. As per Amazon - "The old-gen instance families (m1, c1, m2, hs1, some m3s) are getting patched and will require a reboot; new-gen families are safe. The reboots start 03/03/2015. Some other Services (ELB, RDS, Redshift, and others that rely on EC2 under the covers) will also need the patch and may be affected. Same for RDS and any other Services that rely on EC2 under the covers."
P.S - update on 03/02/2015 from Amazon that instance reboots are no longer necessary because they have come up with a way to hot patch the old generation instances. What a relief!.
Additionally, you will also see the instances that will be rebooted under "Events" tab in the console. As per Amazon - "The old-gen instance families (m1, c1, m2, hs1, some m3s) are getting patched and will require a reboot; new-gen families are safe. The reboots start 03/03/2015. Some other Services (ELB, RDS, Redshift, and others that rely on EC2 under the covers) will also need the patch and may be affected. Same for RDS and any other Services that rely on EC2 under the covers."
P.S - update on 03/02/2015 from Amazon that instance reboots are no longer necessary because they have come up with a way to hot patch the old generation instances. What a relief!.
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