hi everyone, in my company we have a multi-region Apigeex deployment, and we are experiencing frequent 401 “keymanagement.service.invalid_access_token” errors, for valid tokens, we believe that this may be due to a synchronization problem between regions, since we have identified requests for generating token in one region and then the requests in the other and especially frequent in periods when transactionality increases, some questions:
1.- Have any of you experienced errors of this type?
2.- Do you know what the expected delay time is between token synchronization between regions? Could this be affected in periods of high load? Is it possible to improve it?
3.- Is there a way to force that if a token is generated in an instance, the following requests are attended to in that instance/region?
4.- In some cases, our developers have implemented token generation prior to each request, is there any formal Google recommendation for this? for example: cache the tokens??