Dan Harris <fbsd@drivefaster.net> writes:
> My PG server came to a screeching halt yesterday. Looking at top saw a very
> large number of "startup waiting" tasks. A pg_dump was running and one of my
> scripts had issued a CREATE DATABASE command. It looks like the CREATE DATABASE
> was exclusive but was having to wait for the pg_dump to finish, causing a
> massive traffic jam of locks behind it.
> Once I killed the pg_dump process, things returned to normal.
> Version 8.0.12. Is this a bug?
It's operating as designed :-(. 8.1 and later use less strict locking
on pg_database during create/drop database.
regards, tom lane