[check_postgres] negative result from hot_standby_delay action

[Guillaume Lelarge]

On Thu, 2012-11-15 at 19:48 +0100, Filip Rembiałkowski wrote:
> Hello.
> 
> hot_standby_delay sometimes returns negative value.
> 
> I know the reason behind this - quite naturally the delay between querying
> master ad slave can cause this.
> 
> I think it makes sense to fix it in check_postgres.pl by something like
> $result = 0 if $result < 0;
> All in all, it is logically impossible that slave has processed more WAL
> segments than master :-)
> 

I guess you're right. If nobody objects, I'll commit a patch doing this
this week.


-- 
Guillaume
http://blog.guillaume.lelarge.info
http://www.dalibo.com