Re: Tests randomly failed

Alexander Klimov <ask@wisdom.weizmann.ac.il> writes:
> It is looks like failed tests are due to
> ! psql: connectDBStart() -- connect() failed: Connection refused
> !     Is the postmaster running locally
> !     and accepting connections on Unix socket '/tmp/.s.PGSQL.65432'?

What I see is a lot of

! psql: Backend startup failed

which suggests a fork() failure.  Look in the postmaster logfile to see
the exact kernel error code --- but probably you are out of swap space
or up against the kernel's limit on number of processes for one userid.

            regards, tom lane