Re: Hard limit on WAL space used (because PANIC sucks) - Mailing list pgsql-hackers

On 2014-01-23 13:56:49 +0100, Simon Riggs wrote:
> IMHO we need to resolve the deadlock inherent in the
> disk-full/WALlock-up/checkpoint situation. My view is that can be
> solved in a similar way to the way the buffer pin deadlock was
> resolved for Hot Standby.

I don't think that approach works here. We're not talking about mere
buffer pins but the big bad exclusively locked buffer which is held by a
backend in a critical section. Killing such a backend costs you a PANIC.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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