On 2017-03-11 12:05:23 -0500, Tom Lane wrote: > I wrote: > > I believe the core problem is that contrib/test_decoding's regresscheck > > and isolationcheck targets each want to use ./tmp_check as their > > --temp-instance. make has no reason to believe it shouldn't run those > > two sub-jobs in parallel, but when it does, we get two postmasters trying > > to share the same directory. This looks reasonably straightforward to > > solve, but I'm not entirely familiar with the code here, and am not > > sure what is the least ugly way to fix it. > > Enlarging on that: if I cd into contrib/test_decoding and do > "make check -j4" or so, it reliably fails.
Yep, can reproduce here as well. Interesting that, with -j16, I could survive several dozen runs from the toplevel locally. > This is a localized patch that only fixes things for > contrib/test_decoding; what I'm wondering is if it would be better to > establish a more widespread convention that > $(pg_isolation_regress_check) should use a different --temp-instance > directory than $(pg_regress_check) does. I think that'd be a good plan. We probably should also keep --outputdir seperate (which test_decoding/Makefile does, but pg_isolation_regress_check doesn't)? - Andres -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers