Hi,
Le jeu. 7 mai 2020 à 11:13, Marc Rechté <ma...@rechte.fr
<mailto:ma...@rechte.fr>> a écrit :
Hello,
It is possible to startup an instance with min > max, without the
system
complaining:
mrechte=# show min_wal_size ;
2020-05-07 11:12:11.422 CEST [11098] LOG: durée : 0.279 ms
min_wal_size
--------------
128MB
(1 ligne)
mrechte=# show max_wal_size ;
2020-05-07 11:12:12.814 CEST [11098] LOG: durée : 0.275 ms
max_wal_size
--------------
64MB
(1 ligne)
This could be an issue ?
I don't see how this could be an issue. You'll get a checkpoint every
time 64MB have been written before checkpoint_timeout kicked in. And WAL
files will be removed if you have more than 128MB of them.
Not the smartest configuration, but not a damaging one either.
--
Guillaume.
I have some doubts when I see such code in
backend/access/transam/xlog.c:2334
if (recycleSegNo < minSegNo)
recycleSegNo = minSegNo;
if (recycleSegNo > maxSegNo)
recycleSegNo = maxSegNo;
