Unable to connect to any rack controller <rack controller ID>; no connections available

We’re getting this periodically, is this a DB connections issue or some other tunable? Google was of little help on this one…

maas HA region (3 controllers), active standby PG DB (300 connection limit), maas 2.9.2, 25 rack controllers.

Is it just the DB connection limit is too low?

Hi @dandruczyk,

these messages are about RPC connections between the region and the rack controllers (not related to the DB). Please check the logs from the racks referenced in the messages, you might have connectivity issues.