Re: Load spikes on 8.1.11

On Tue, Jul 22, 2008 at 02:41:55AM +0530, Gurjeet Singh wrote:

> I am aware of the heavy locking involved with Slony, which should mean that
> it blocks the application connections; that's be completely acceptable,
> given all the warnings in the Slony docs. But what I am concerned about and
> trying to hunt down is why <IDLE> backend processes are all consuming up all
> of CPU (!!!) so much so that I am unable to fire up any new process!

Ah, well, then, yes, the spinlock improvements probably will help
you.  But you should disabuse yourself of the idea that <IDLE>
processes have no cost.  You still have to talk to all those
connections when doing schema changes.

A

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Andrew Sullivan
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