error in cinder-volume
Hey after upgrade my OpenStack environment to queens (17.1.9) I was starting to see errors in cinder-volume.log logs are here https://pastebin.com/2Nwqmi2c Does anyone know why this occurs and what is affected?
It seems like your database connection failed, check the respective service and logs.
the cinder-volume service is still up when this is happening, which logs should I look into it that can bring me closer to find the issue? apart from the cinder logs
Since the error indicates a problem with the database connection of cinder-volume, try the database logs, probably /var/log/mysql. Or use your favourite search engine to understand what could be wrong with the database connection.