There was what looks like a planned maintenance in our HA managed postgres cloud sql instance and it's in a bad state since.
Jan 7, 2018, 2:08:21 AM Update An unknown error occurred.
The failover instance did not work "by failing over", now even do not exist anymore, we can't restart or perform any other operation, this production database is totally unavailable
2018/01/08 09:41:24 couldn't connect to "ourprojectid:us-central1:instance name": googleapi: Error 409: The instance or operation is not in an appropriate state to handle the request., invalidState
We also tried to contact the support by directly sending email as suggested in similar posted issues.
We start considering to create a new instance and restore from a backup, but I would expect some more resiliency from an HA managed instance and upon an schedule maintenance, this is being out for more than a day.
Thanks in advance