Re: (replication) Detecting if server a slave, or a master in recovery
| От | Simon Riggs |
|---|---|
| Тема | Re: (replication) Detecting if server a slave, or a master in recovery |
| Дата | |
| Msg-id | CA+U5nMLdNmzxNR_55Dw_pYkAHQYnjiuU_zAWAXAA+BZ7WqhnFQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: (replication) Detecting if server a slave, or a master in recovery (Toby Corkindale <toby.corkindale@strategicdata.com.au>) |
| Ответы |
Re: (replication) Detecting if server a slave, or a master
in recovery
|
| Список | pgsql-general |
On Mon, Sep 12, 2011 at 8:19 AM, Toby Corkindale <toby.corkindale@strategicdata.com.au> wrote: > On 12/09/11 17:13, Simon Riggs wrote: >> >> On Mon, Sep 12, 2011 at 7:54 AM, Toby Corkindale >>> What is the best method for determining whether you're connected to the >>> master or slave database? >> >> SELECT pg_is_in_recovery(); > > > If I'm on a master database, which had previously crashed and is now in the > process of recovery, won't that also return "true" there? No, because you can't connect to the database during crash recovery, so the first time you can connect to a has-crashed master it will return false. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
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