This is the query I'm using now to hit both the attach error and detach error:
message:"TestEncryptedCinderVolumes" AND ((message:"detach_volume" AND message:"TypeError: <type 'NoneType'> can't be decoded") OR (message:"attach_volume" AND message:"DeviceIsBusy: The supplied device \(vdb\) is busy")) AND tags:"screen-n-cpu.txt"
This is the query I'm using now to hit both the attach error and detach error:
message: "TestEncryptedC inderVolumes" AND ((message: "detach_ volume" AND message:"TypeError: <type 'NoneType'> can't be decoded") OR (message: "attach_ volume" AND message: "DeviceIsBusy: The supplied device \(vdb\) is busy")) AND tags:"screen- n-cpu.txt"