Re: Windows buildfarm failures

Alvaro Herrera wrote:
> Tom Lane wrote:
>> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
>>> Now, if some Windows-enabled person could step forward so that we can
>>> suggest some tests to run, that would be great. Perhaps the solution to
>>> the problem is to relax the conditions a little, so that two scans are
>>> accepted on that table instead of only one; but it would be good to
>>> confirm whether the stat system is really working and it's really still
>>> counting stuff as it's supposed to do.
>> No, you misread it: the check is for at least one new event, not exactly
>> one.
>
> Doh :-(
>
>> We've been seeing this intermittently for a long time, but it sure seems
>> that autovac has raised the probability greatly. That's pretty odd.
>> If it's a timing thing, why are all and only the Windows machines
>> affected? Could it be that autovac is sucking all the spare cycles
>> and keeping the stats collector from running?
>
> Hmm, that could explain it, but it's strange that only Windows machines
> are affected. Maybe it's a scheduler issue, and the Unix machines are
> able to let pgstat do some work but Windows are not.

maybe not only windows boxes:

http://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=zebra&dt=2007-01-20%2015:25:05

Stefan