Symptoms:
- End-user cannot open VM console with an error "Error: Console is currently unavailable" via Horizon UI
- You can see logs in "nova-compute" service similar to:
2020-09-16T12:44:11Z 2020-09-16 12:44:11.668 1 ERROR oslo_messaging.rpc.server [req-0403065c-b6ef-42f1-afcf-33abf24fe134 327e5a0bf7f61d694d2f89b3a4b3a0ef8007c31be007115d72b211f0657adc64 52fc414403de429a832dd27981c22e2a - bfdbb50d70f549f5
b09ac37ec698e589 bfdbb50d70f549f5b09ac37ec698e589] Exception during message handling: RemoteError: Remote error: DBDataError (pymysql.err.DataError) (1406, u"Data too long for column 'internal_access_path' at row 1")
Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.