From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
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To: | aaliya zarrin <aaliya(dot)zarrin(at)gmail(dot)com> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: pg_is_in_recovery=1 |
Date: | 2010-12-13 20:32:23 |
Message-ID: | AANLkTim13fRaF3rAnBQvMZsDgHJQ=N7C-9fdv0TXM3Q6@mail.gmail.com |
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Lists: | pgsql-hackers |
On Mon, Dec 13, 2010 at 12:48 AM, aaliya zarrin <aaliya(dot)zarrin(at)gmail(dot)com> wrote:
> When pg_is_in_recovery in the table changes to zero(status change)??
> At the time when recovery stops?
Ah... yep.
> If switch over has to be done then, after receivibg the signal and telling
> the postgres to run the startup process (got_SIGHUP = true),
> shall we have to stop replication or wait for the recovery to get stop?
> Can I change this pg_is_in_recovery = 0?
Stopping replication and ending recovery are the same operation in
this case. In the case of a crash, we do recovery just to get back to
a consistent state. In the case of replication, we recover
continuously until failover is performed.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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