Horton

Re: pg_receivewal documentation

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Jesper Pedersen <jesper.pedersen@redhat.com>
Cc: Laurenz Albe <laurenz.albe@cybertec.at>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2019-07-10T14:24:21Z
Lists: pgsql-hackers 
On 2019-Jul-09, Jesper Pedersen wrote:

> +       <para>
> +        Note that while WAL will be flushed with this setting,
> +        it will never be applied, so <xref linkend="guc-synchronous-commit"/> must
> +        not be set to <literal>remote_apply</literal> if <application>pg_receivewal</application>
> +        is the only synchronous standby.
> +       </para>

+1 to document this caveat.

How about 
        Note that while WAL will be flushed with this setting,
        <application>pg_receivewal</application> never applies it, so
        <xref linkend="guc-synchronous-commit"/> must not be set to
        <literal>remote_apply</literal> if <application>pg_receivewal</application>
        is the only synchronous standby.
?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Doc: Clarify interactions of pg_receivexlog with remote_apply

  2. Doc: Clarify interactions of pg_receivewal with remote_apply