Re: pgsql: Have pg_receivexlog always send an invalid log position in statu
От | Jaime Casanova |
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Тема | Re: pgsql: Have pg_receivexlog always send an invalid log position in statu |
Дата | |
Msg-id | CAJKUy5hpQ9p3Z9drw=R7hPzFtJXLF7N7kCePtsdgD2eYXgq3vA@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: pgsql: Have pg_receivexlog always send an invalid log position in statu (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
Список | pgsql-committers |
On Thu, Feb 9, 2012 at 11:35 AM, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> wrote: > On 09.02.2012 15:14, Magnus Hagander wrote: >> >> Have pg_receivexlog always send an invalid log position in status messages >> >> This prevents pg_basebackup and pg_receivexlog from becoming a synchronous >> standby in case 'write' is used for synchronous_commit. > > > It's not completely crazy to use pg_receivexlog as a synchronous standby. It > provides the zero-loss property like a real standby does, ie. if the master > dies after sending the WAL to pg_receivexlog, that transaction is safe in > the archive. > what if we ignore the application_name "pg_receivexlog" for a sync rep and give pg_receivexlog an option to set another application_name? that will avoid the problem for normal cases and still accept it for a sync rep if that is what we really want -- Jaime Casanova www.2ndQuadrant.com Professional PostgreSQL: Soporte 24x7 y capacitación
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