You can configure a limit to the number of simultaneous sessions authenticated against the same user name. The property nav.max.concurrent.sessions takes an integer value as a limit; set the value to -1 (default) to turn off the limit. To change the default behavior, in Cloudera Manager, add the property with a new value to the Navigator Metadata Server Advanced Configuration Snippet (Safety Valve) for cloudera-navigator.properties. Restart the Navigator Metadata Server to apply the change.