"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> org.postgresql.util.PSQLException: ERROR: canceling query due to user request
The only possible trigger of that message is a SIGINT sent to the backend.
Now the backend will SIGINT itself if a statement timeout expires, so one
possibility is that you have statement_timeout set and it's getting
exceeded. Otherwise you need to be looking for external causes.
regards, tom lane