View the original community article here
Last tested: Aug 17, 2010
Possible reasons for seeing this error message include:
- The connection between Looker and the DB closed before the query could finish executing (timeout error)
- There could be a "networking" component involved that's forcing the connection between Looker and the database to close after a certain amount of time. This usually is in the forms of either a "proxy" or a "load balancer" that's in front of our database. Usually, if there is a networking component involved with this behavior, there is a consistent amount of time before our connection to the database get's closed off (i.e it's always 60 seconds).