Michael Paquier <michael.paqu...@gmail.com> writes:
> On Wed, Apr 13, 2016 at 9:06 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>> If there's other stuff using high ports on a particular buildfarm machine,
>> you'd expect occasional random test failures due to this.  The observed
>> fact that some buildfarm critters are much more prone to this type of
>> failure than others is well explained by this hypothesis.

> Each test run uses its own custom unix_socket_directories, PGHOST is
> enforced to use it, and all the port tests go through that as well.

By that argument, we don't need the free-port-searching code on Unix at
all.  But this discussion is mostly about Windows machines.

                        regards, tom lane

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