Re: Synchronous replication - patch status inquiry

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От Simon Riggs
Тема Re: Synchronous replication - patch status inquiry
Дата
Msg-id 1283429018.1834.445.camel@ebony
обсуждение исходный текст
Ответ на Re: Synchronous replication - patch status inquiry  (Fujii Masao <masao.fujii@gmail.com>)
Ответы Re: Synchronous replication - patch status inquiry  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Список pgsql-hackers
On Thu, 2010-09-02 at 19:24 +0900, Fujii Masao wrote:
> On Wed, Sep 1, 2010 at 7:23 PM, Heikki Linnakangas
> <heikki.linnakangas@enterprisedb.com> wrote:
> > That requirement falls out from the handling of disconnected standbys. If a
> > standby is not connected, what does the master do with commits? If the
> > answer is anything else than acknowledge them to the client immediately, as
> > if the standby never existed, the master needs to know what standby servers
> > exist. Otherwise it can't know if all the standbys are connected or not.
> 
> Thanks. I understood why the registration is required.

I don't. There is a simpler design that does not require registration.

Please explain why we need registration, with an explanation that does
not presume it as a requirement.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services



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