On 2013-10-14 09:12:09 -0400, Robert Haas wrote:
> On Fri, Oct 11, 2013 at 4:03 PM, Andrew Dunstan <and...@dunslane.net> wrote:
> >> Can the owners of these buildfarm machines please check whether there
> >> are extra semaphores allocated and if so free them?  Or at least
> >> reboot, to see if that unbreaks the build?
> >
> > It is possible to set the buildfarm config
> >
> >     build_env=> {MAX_CONNECTIONS => 10 },
> >
> > and the tests will run with that constraint.
> >
> > Not sure if this would help.
> Maybe I didn't explain that well.  The problem is that the regression
> tests require at least 20 connections to run, and those two machines
> are currently auto-selecting 10 connections, so make check is failing.

I think pg_regress has support for spreading groups to fewer connections
if max_connections is set appropriately. I guess that's what Andrew is
referring to.

That said, I don't think that's the solution here. The machine clearly
worked with more connections until recently.


Andres Freund

 Andres Freund                     http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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