Wood, Dan wrote:
> Yes, I’ve been testing 9.6. I’ll try Alvaro’s patch today.
>
> I would prefer to focus on either latest 9X or 11dev.
I tested my patch on 9.4 and 9.5 today and it seems to close the problem
(with the patch, I waited 10x as many iterations as it took for the
problem to occur ~10 times without the patch), but I can reproduce a
problem in 9.6 with my patch installed. There must be something new in
9.6 that is causing the problem to reappear.
> Does Alvaro’s patch presume any of the other patch to set COMMITTED in
> the freeze code?
I don't know what you mean. Here is the 9.6 version of my patch. Note
that HEAP_XMIN_FROZEN (which uses the XMIN_COMMITTED bit as I recall)
was introduced in 9.4.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
