问题
We are getting internal_failure error message while exchanging code to get refresh token. This error doesn't occur all the time for all the accounts. This happens only while authenticating with a few Google accounts and that too like 5 to 6 failures for every 10 authentication requests no matter what the client_id is. We have a test account and is reproducible too frequently in this account as well.
{
"error" : "internal_failure"
}
回答1:
How often are you making these requests? You are probably running into the per account quota limits. In real life, any account would not be doing a lot of code to refresh token conversion. The expectation is that you do that just once per application. So, if you have test/monitoring accounts, they will run into these issues. The best is for you to monitor and test only your site/code.
回答2:
internal_failure is an authentication server outage. which can be tracked on
Cloud Status or apparently also APP Status although I am not seeing it there it may only be GSuite issues are there.
There is nothing that you can do but wait for the server to return.
来源：https://stackoverflow.com/questions/25619979/internal-failure-while-getting-refreshtoken-using-code