| From: | Thom Brown <thom(at)linux(dot)com> |
|---|---|
| To: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
| Cc: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Robert Haas <robertmhaas(at)gmail(dot)com>, Jaime Casanova <jaime(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [COMMITTERS] pgsql: Add new replication mode synchronous_commit = 'write'. |
| Date: | 2012-04-14 15:13:39 |
| Message-ID: | CAA-aLv4OTN-yHO0AkwjQOk+rXGFAV_qK5GJk-Wq_MUdQgU3J_w@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers pgsql-hackers |
On 14 April 2012 15:58, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
> On Sat, Apr 14, 2012 at 4:16 AM, Thom Brown <thom(at)linux(dot)com> wrote:
>> I have a question though. What happens when this is set to "write"
>> (or "remote_write" as proposed) but it's being used on a standalone
>> primary? At the moment it's not documented what level of guarantee
>> this would provide.
>
> http://www.postgresql.org/docs/devel/static/warm-standby.html#SYNCHRONOUS-REPLICATION-HA
> -----------------
> Commits made when synchronous_commit is set to on or write will
> wait until the synchronous standby responds. The response may
> never occur if the last, or only, standby should crash.
> -----------------
>
> Is this description not enough? If not enough, how should we change
> the document?
No, that's not what I was referring to. If you don't have a standby
(i.e. a single, isolated database cluster with no replication), and
its synchronous_commit is set to 'remote_write', what effect does that
have?
--
Thom
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tatsuo Ishii | 2012-04-15 00:18:54 | pgsql: Add missing descriptions about '--timeout' and '--mode' to help |
| Previous Message | Fujii Masao | 2012-04-14 14:58:50 | Re: [COMMITTERS] pgsql: Add new replication mode synchronous_commit = 'write'. |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Peter Eisentraut | 2012-04-14 16:15:59 | Re: BUG #6572: The example of SPI_execute is bogus |
| Previous Message | Fujii Masao | 2012-04-14 14:58:50 | Re: [COMMITTERS] pgsql: Add new replication mode synchronous_commit = 'write'. |