Re: backup manifests - Mailing list pgsql-hackers

From Andres Freund
Subject Re: backup manifests
Date
Msg-id 20200330005919.m2dayh7zmtul3dtl@alap3.anarazel.de
Whole thread Raw
In response to Re: backup manifests  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
Hi,

On 2020-03-29 20:47:40 -0400, Robert Haas wrote:
> Maybe that was the wrong idea, but I thought people would like the
> idea of running cheaper checks first. I wasn't worried about
> concurrent modification of the backup because then you're super-hosed
> no matter what.

I do like that approach.

To be clear: I'm suggesting the additional crosscheck not because I'm
not concerned with concurrent modifications, but because I've seen
filesystem per-inode metadata and the actual data / extent-tree
differ. Leading to EOF reported while reading at a different place than
what the size via stat() would indicate.

Greetings,

Andres Freund



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