| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | jd(at)commandprompt(dot)com |
| Cc: | Thom Brown <thom(at)linux(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Dave Page <dpage(at)pgadmin(dot)org>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Configuring synchronous replication |
| Date: | 2010-09-22 17:16:51 |
| Message-ID: | AANLkTinDu-vhAXpBNZgAqhzp=8UTRyUrKj-kk_U3kp3L@mail.gmail.com |
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| Lists: | pgsql-committers pgsql-hackers |
On Wed, Sep 22, 2010 at 1:09 PM, Joshua D. Drake <jd(at)commandprompt(dot)com> wrote:
> On Wed, 2010-09-22 at 13:00 -0400, Robert Haas wrote:
>
>> > I mean really?
>> >
>> > ALTER CLUSTER ENABLE [SYNC] REPLICATION ON db.foobar.com PORT 5432 ALIAS
>> > CRITICAL;
>> > ALTER CLUSTER SET REPLICATION CRITICAL RECEIVE FOR 2;
>> > ALTER CLUSTER SET REPLICATION CRITICAL FSYNC FOR 2;
>> > ALTER CLUSTER SET REPLICATION CRITICAL REPLAY FOR 2;
>> >
>> > Or some such thing. I saw Heiiki's reply but really the idea that we are
>> > shoving this all into the postgresql.conf is cumbersome.
>>
>> I think it should be a separate config file, and I think it should be
>> a config file that can be edited using DDL commands as you propose.
>> But it CAN'T be a system catalog, because, among other problems, that
>> rules out cascading slaves, which are a feature a lot of people
>> probably want to eventually have.
>
> I guarantee you there is a way around the cascade slave problem.
And that would be...?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company
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