| From: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
|---|---|
| To: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
| Cc: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Beena Emerson <memissemerson(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Support for N synchronous standby servers - take 2 |
| Date: | 2016-01-31 08:08:38 |
| Message-ID: | CAD21AoAJZa-cUhdFEOYbm5GXO+XyN+GQNeqdz_-cSpOTtgYxcQ@mail.gmail.com |
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On Sun, Jan 31, 2016 at 1:17 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
> On Thu, Jan 28, 2016 at 10:10 PM, Masahiko Sawada wrote:
>> By the discussions so far, I'm planning to have several replication
>> methods such as 'quorum', 'complex' in the feature, and the each
>> replication method specifies the syntax of s_s_names.
>> It means that s_s_names could have the number of sync standbys like
>> what current patch does.
>
> What if the application_name of a standby node has the format of an integer?
Even if the standby has an integer as application_name, we can set
s_s_names like '2,1,2,3'.
The leading '2' is always handled as the number of sync standbys when
s_r_method = 'priority'.
Regards,
--
Masahiko Sawada
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