Jaime Casanova wrote: > On Mon, Apr 12, 2010 at 8:32 PM, Fujii Masao <masao.fu...@gmail.com> wrote: >> But when I did one more restart of the primary and standby, I was >> able to observe the problem. If this is the same as you encountered, >> it would be the "can't start hot standby from a shutdown checkpoint" >> issue that Heikki pointed out. So it's very helpful to check whether >> the posted patch fixes your problem or not. >> http://archives.postgresql.org/pgsql-hackers/2010-04/msg00407.php > > this patch seems to fix the problem for me...
Committed, thanks for the testing. > i will read it on the morning and the thread where it is, something > that seems strange to me is that the patch touch twophase.c and > twophase.h, why? When you start hot standby from an online checkpoint, the XIDs of any two-phase transactions are included in the running-xacts record, just like any other in-progress transactions. At a shutdown checkpoint, we know that no regular transactions are in-progress, but there can be transactions in prepared state, which need to be considered as in-progress in the standby, but there's no information about them in the shutdown record. So we scan pg_twophase to discover them. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
