Schedule for weekly update in App engine flex env

[Ting Chang]

Hi,

We are currently using the App Engine Flex environment for hosting our service but we've been experiencing outage every week for ~20 minutes due to the weekly update.

Questions:

1) Is it possible to configure a different time for the weekly update? 

2) We are also looking into configuring more instances running at all time so the LB can redirect the traffic to the instance that is available.  Do all instances get updated/restarted all at the same time?  If we have multiple instances, can we be sure that only one will be down at a time?

Our service is hosted in the us-central region.

Thank you,

Ting

[George (Cloud Platform Support)]

Hello Ting, 

It is not possible to configure any time for weekly restarts in the Flexible Environment. These are no scheduled or predictable events. The environment does not perform maintenance on all your running instances at once, so there are always running instances left to serve traffic. If you have multiple instances, you can be sure that at least one of them, usually more, will remain active during maintenance on others. Overall, you should not fear maintenance-related restarts. 

[Ting Chang]

Sounds like having more than one instance is the way to go.  Thank you for your response.

Ting

[Rizky Ananda]

thank you