Re: Sync Rep v19

On Sun, Mar 6, 2011 at 5:02 PM, Yeb Havinga <yebhavinga@gmail.com> wrote:
> On Sun, Mar 6, 2011 at 8:58 AM, Fujii Masao <masao.fujii@gmail.com> wrote:
>>
>> If unfortunately all connection slots are used by backends waiting for
>> replication, we cannot execute such a function. So it makes more sense
>> to introduce something like "pg_ctl standalone" command?
>
> If it is only for shutdown, maybe pg_ctl stop -m standalone?

It's for not only shutdown but also running the primary in standalone mode.
So something like "pg_ctl standalone" is better.

For now I think that pg_ctl command is better than built-in function because
sometimes we might want to wake waiters up even during shutdown in
order to cause shutdown to end. During shutdown, the server doesn't
accept any new connection (even from the standby). So, without something
like "pg_ctl standalone", there is no way to cause shutdown to end.

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center