Re: Does PostgreSQL check database integrity at startup?

El 26/12/17 a las 09:52, Edson Carlos Ericksson Richter escribió:
> Recently I had a problem with a base file with size 0 in a standby server.
> 
> This raised one question: does PostgreSQL (9.6.6) check base integrity
> at startup?
> 
> At least if there are 0 byte size files in base dir? Or CRC? Something?

Yes it has CRC check, but only if you initialize the cluster with
--data-checksums, and there's a price to pay in performance.


-- 
Martín Marqués                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services