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From: Tom Lane <[email protected]>
To: Fujii Masao <[email protected]>
Cc: Simon Riggs <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Cc: Aidan Van Dyk <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Re: [COMMITTERS] pgsql: Make standby server continuously retry restoring the next WAL
Date: Wed, 24 Mar 2010 22:14:37 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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Fujii Masao <[email protected]> writes:
> OK. How about making the startup process emit WARNING, stop WAL replay and
> wait for the presence of trigger file, when an invalid record is found?
> Which keeps the server up for readonly queries. And if the trigger file is
> found, I think that the startup process should emit a FATAL, i.e., the
> server should exit immediately, to prevent the server from becoming the
> primary in a half-finished state. Also to allow such a halfway failover,
> we should provide fast failover mode as pg_standby does?

I find it extremely scary to read this sort of blue-sky design
discussion going on now, two months after we were supposedly
feature-frozen for 9.0.  We need to be looking for the *rock bottom
minimum* amount of work to do to get 9.0 out the door in a usable
state; not what would be nice to have later on.

			regards, tom lane

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