> Fairly sure, when it is happening, postgres usually is taking up the top slots
> for cpu usage as reported by top. Perhaps there is a better way to monitor
> this?
Given the intermittent nature of the problem and its relative brevity
(5-10 seconds), I don't know whether top offers the granularity needed to
locate the bottleneck.
> likely you have a situation where something else is happening which blocks
> the current thread.
It happens on my development system, and I'm the only one on it. I know
I've seen it on the production server, but I think it is a bit more
common on the development server, though that may be a case of which system
I spend the most time on. (Also, the production server is 1300 miles away
with a DSL connection, so I may just be seeing network delays some of
the time there.)
> Both of these were triggered by users double clicking links in our
> web app and were fixed by a better implementation. Perhaps something like
> that is causing what you are seeing.
My web app traps double-clicks in javascript and ignores all but the first one.
That's because some of the users have mice that give double-clicks even
when they only want one click.
--
Mike Nolan
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
