Re: xid_wraparound tests intermittent failure. - Mailing list pgsql-hackers

From Andrew Dunstan
Subject Re: xid_wraparound tests intermittent failure.
Date
Msg-id bfe875fb-c238-4116-b71f-343c026c6be7@dunslane.net
Whole thread Raw
In response to Re: xid_wraparound tests intermittent failure.  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On 2024-07-22 Mo 10:11 PM, Tom Lane wrote:
> Andrew Dunstan <andrew@dunslane.net> writes:
>> On 2024-07-22 Mo 12:46 PM, Tom Lane wrote:
>>> Masahiko Sawada<sawada.mshk@gmail.com>  writes:
>>>> Looking at dodo's failures, it seems that while it passes
>>>> module-xid_wraparound-check, all failures happened only during
>>>> testmodules-install-check-C. Can we check the server logs written
>>>> during xid_wraparound test in testmodules-install-check-C?
>>> Oooh, that is indeed an interesting observation.  There are enough
>>> examples now that it's hard to dismiss it as chance, but why would
>>> the two runs be different?
>> It's not deterministic.
> Perhaps.  I tried "make check" on mamba's host and got exactly the
> same failures as with "make installcheck", which counts in favor of
> dodo's results being just luck.  Still, dodo has now shown 11 failures
> in "make installcheck" and zero in "make check", so it's getting hard
> to credit that there's no difference.
>
>             


Yeah, I agree that's perplexing. That step doesn't run with "make -j 
nn", so it's a bit hard to see why it should get different results from 
one run rather than the other.  The only thing that's different is that 
there's another postgres instance running. Maybe that's just enough to 
slow the test down? After all, this is an RPi.


cheers


andrew


--
Andrew Dunstan
EDB: https://www.enterprisedb.com




pgsql-hackers by date:

Previous
From: Robert Haas
Date:
Subject: Re: Things I don't like about \du's "Attributes" column
Next
From: Heikki Linnakangas
Date:
Subject: Re: Comments on Custom RMGRs