Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> Currently running "make -j16 all check" in contrib/ results in a mess because
> all pg_regress invocations fight over the same port. Adding a simple
> .NOTPARALLEL: check-%-recurse
> into contrib/Makefile fixes that. Do we want that?
Dunno, but if we do, it should be applied to installcheck as well.
(In that case the fight is over the contrib_regression database.)
A larger point is that you shouldn't really fix this only for contrib.
What about tests run in src/pl, or contrib vs the main regression tests
vs src/pl vs test/isolationtester, etc etc.
regards, tom lane