Just an update to note that using a canonical name instead of the FQDN of the system still generates this error. We also used a test script invoking oslo_config.types.URI() to test the string length implementation of oslo-config on this system (python-oslo-config-3.17.0-0.20160920171017.8db0b7c) and confirmed that it is a newer release than when the string length parameters were introduced in to oslo_config.
Just an update to note that using a canonical name instead of the FQDN of the system still generates this error. We also used a test script invoking oslo_config. types.URI( ) to test the string length implementation of oslo-config on this system (python- oslo-config- 3.17.0- 0.2016092017101 7.8db0b7c) and confirmed that it is a newer release than when the string length parameters were introduced in to oslo_config.