We are using OAuth2 to validate our server to server interactions. The Grant Type is Client Credentials.
If I have Service1 running on ServerA all is well - when the token is about to expire it just gets another one.
But if I scale up Service1 to run on 2 servers using the same CLIENT_ID: ServerA requests a token, then ServerB requests a token. The second request for a token invalidates the 1st token. A loop begins...
If the AuthServer is setup to always return the SAME token to each Server, then I have the problem of how do I request a new token before the first one expires?
How can ServerA and ServerB reasonably share a token?
I can't be the first one to encounter this design challenge. Anyone?
