Re: Excessive CPU usage in StandbyReleaseLocks()

Hi,

On 2018-06-19 10:45:04 -0400, Robert Haas wrote:
> On Tue, Jun 19, 2018 at 2:30 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > This should be a PANIC imo.
>
> -1. As a developer, I would prefer PANIC. But as an end-user, I
> would much rather have replay continue (with possible problems) than
> have it stopped cold in its tracks with absolutely nothing that I as
> the administrator can do to fix it. We should be building this
> product for end users.

Except that that just means the end-user will have an undebuggable
problem at their hand. Which will affect them as well.

And they could just restart with hot_standby=off, and restart again. Or
even just restart without the GUC change, because that will rebuild the
locking state from a later state / start becoming ready for query at a
later stage.

Greetings,

Andres Freund