Re: Platform Testing - Cygwin

> -----Original Message-----
> From: Jason Tishler [mailto:jason(at)tishler(dot)net]
> Sent: 13 December 2001 12:33
> To: Dave Page
> Cc: 'pgsql-hackers(at)postgresql(dot)org'; 'pgsql-cygwin(at)postgresql(dot)org'
> Subject: Re: [CYGWIN] Platform Testing - Cygwin
>
>
> Dave,
>
> On Wed, Dec 12, 2001 at 10:18:57PM -0000, Dave Page wrote:
> > Parallel regression tests appear to fail almost randomly.
> The best I
> > got so far was 3 failures (out of 79 tests), the worst was
> about 15.
> > In particular the horology & misc tests always seems to
> fail, whilst
> > the others vary. With the exception of the misc test, all failures
> > appear to be due to failed connections eg:
> >
> > --- 1,3 ----
> > ! psql: could not connect to server: Connection refused
> > ! Is the server running on host localhost and accepting
> > ! TCP/IP connections on port 65432?
>
> The above is a known MS Winsock limitation and is documented
> in FAQ_MSWIN:
>
> 2. make check can generate spurious regression test
> failures due to
> overflowing the listen() backlog queue which causes connection
> refused errors.
>
> > System: Windows XP Professional, PIII 850MHz, 512Mb RAM, 32Gb disk
> ^^^^^^^^^^^^
>
> Your system has a backlog limit of 5. Although a little
> dated, see the following for details:
>
> http://support.microsoft.com/support/kb/articles/Q127/1/44.asp
>
> Jason

Aww nuts. I should have thought of that. I'll try again on a Win2K server.

Slap on the wrist for not checking the docs - in my defence I'm recovering
from a rather nasty cold, and I am following on from someone else's reported
problem!

Thanks Jason,

Dave.

Dave,

On Thu, Dec 13, 2001 at 01:30:05PM -0000, Dave Page wrote:
> Slap on the wrist for not checking the docs - in my defence I'm recovering
> from a rather nasty cold, and I am following on from someone else's reported
> problem!

No slap is necessary. I'm sorry that my terse response did not indicate
my appreciation for taking the time to help out.

Thanks,
Jason

...
> > The above is a known MS Winsock limitation and is documented
> > in FAQ_MSWIN:
...
> Aww nuts. I should have thought of that. I'll try again on a Win2K server.

Jason and Dave, would y'all consider this a tested and supported
platform then? I'd like to correctly represent this in the ports list in
the docs for this release, but don't recall having seen a report such as
"Win+Cygwin work as well as they ever have"...

- Thomas

Thomas,

I have not done any 7.2 testing myself, but Dave reports the following:

On Wed, Dec 12, 2001 at 10:18:57PM -0000, Dave Page wrote:
> System: Windows XP Professional, PIII 850MHz, 512Mb RAM, 32Gb disk
> uname -a: CYGWIN_NT-5.1 PC20 1.3.3(0.46/3/2) 2001-09-12 23:54 i686 unknown
>
> Sequential regression tests pass repeatedly.

and:

On Thu, Dec 13, 2001 at 02:21:08PM -0000, Dave Page wrote:
> 7.2b4 passes *all* tests both parallel and sequential on Windows 2000
> Server.
>
> On XP Pro, and by the sounds of it, any other non-server releases of
> Windows, parallel tests will fail randomly due to Winsock backlog limit of 5
> on these systems (as pointed out by Jason Tishler and documented in
> FAQ_MSWIN).

On Thu, Dec 13, 2001 at 03:08:57PM +0000, Thomas Lockhart wrote:
> Jason and Dave, would y'all consider this a tested and supported
> platform then? I'd like to correctly represent this in the ports list in
> the docs for this release, but don't recall having seen a report such as
> "Win+Cygwin work as well as they ever have"...

Since I trust Dave, I feel that the above is an accurate characterization
of the situation.

Jason

Got it. Thanks.

- Thomas