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Re: [HACKERS] Streaming replication document improvements

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Robert Haas" <robertmhaas(at)gmail(dot)com>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Josh Berkus" <josh(at)agliodbs(dot)com>, "Heikki Linnakangas" <heikki(dot)linnakangas(at)enterprisedb(dot)com>, "Fujii Masao" <masao(dot)fujii(at)gmail(dot)com>, <pgsql-docs(at)postgresql(dot)org>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [HACKERS] Streaming replication document improvements
Date: 2010-04-20 14:24:38
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Lists: pgsql-docspgsql-hackers
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>>> 3. Your proposal
>>>    Treat superuser replication connection like non-superuser one
>> Well, only for this one very specific purpose.  I would adjust
>> the docs like this:
>> Determines the number of connection "slots" that are reserved for
>> connections by PostgreSQL  superusers. At most max_connections
>> connections can ever be active simultaneously. Whenever the
>> number of active concurrent connections is at least
>> max_connections minus superuser_reserved_connections, new
>> connections will be accepted only for superusers, and no new
>> replication connections will be accepted.
>> I think that's pretty simple and clear.
> +1.  I'm not sure about the consequences of converting walsender
> to non-superuser across the board, and would prefer not to
> experiment with it at this stage of the release cycle.

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