Rajesh Kumar Mallah a écrit :
On 12/5/06, *Tom Lane* <tgl@xxxxxxxxxxxxx <mailto:tgl@xxxxxxxxxxxxx>>
wrote:
Jean Arnaud <Jean.Arnaud@xxxxxxxxxxxx
<mailto:Jean.Arnaud@xxxxxxxxxxxx>> writes:
> Is there a relation between database size and PostGreSQL restart
duration ?
No.
> Does anyone now the behavior of restart time ?
It depends on how many updates were applied since the last checkpoint
before the crash.
If you're talking about startup of a cleanly-shut-down database, it
should be pretty much constant time.
Dear Sir,
Startup time of a clean shutdown database is constant. But we still
face problem when it comes to shutting down. PostgreSQL waits
for clients to finish gracefully. till date i have never been able to
shutdown
quickly (web application scenerio) and i tend to do pg_ctl -m
immediate stop
mostly.
regards, tom lane
Hi
Thanks everybody for answers !
To be sure SGBD will stop before a certain time, I use function that is
a combination of pg_ctl -m fast to stop most of process cleanly, and
after few seconds, I send pg_ctl -m immediate to be shut down immediatly
the system if not already stoped. This works pretty well in practice and
offers a good compromise between clean and fast shutdown.
Cheers
--
--- Jean Arnaud
--- Projet SARDES
--- INRIA Rhône-Alpes
