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From: Robert Haas <[email protected]>
To: Tom Lane <[email protected]>
Cc: Fujii Masao <[email protected]>
Cc: Josh Berkus <[email protected]>
Cc: Kevin Grittner <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Cc: [email protected]
Cc: PostgreSQL-development <[email protected]>
Subject: Re: [HACKERS] Streaming replication document improvements
Date: Tue, 20 Apr 2010 09:42:51 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Tue, Apr 20, 2010 at 9:40 AM, Tom Lane <[email protected]> wrote:
> Robert Haas <[email protected]> writes:
>> If replication connections can use up superuser_reserved_connections
>> slots, then it's very possible that this safety valve will fail
>> completely.
>
> Only if replication can use up *all* the superuser_reserved_connections
> slots.

Sure.  In many cases someone will have 3
superuser_reserved_connections and only 1 wal_sender, so it won't be
an issue.  However, I still think we oughta make this (apparently
one-line) fix so that people will have the number of emergency
superuser connections that they expect to have, rather than some
smaller number that might be 0 if they have a number of SR slaves.

...Robert

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