Re: What would happen if..?
Date: Mon, 17 Mar 2008 05:17:59 -0700 (PDT)
On Mar 14, 12:23 pm, Ben <benal..._at_yahoo.com> wrote:
> 10.2.0.2 EE, aix 5.2 64bit
> I have seen the metric reported in Enterprise Manager several times
> for "Current Open Cursors Count" on one of our database's home page/
> screen. It's reporting it at 7828. This particular system has about
> 1200 individual sessions logged on during peak hours and drops down to
> about 500 during off hours. OPEN_CURSORS is set to 500 in this
> What I don't understand is exactly why this metric is being reported
> to me and if it is just a default value that it has decided once there
> are x number of open cursors the threshold has been crossed and I'm
> going to raise a warning.
> I guess what I'm really asking is, is there some magic number of open
> cursors that I should be worried about, or is it just reporting this
> open cursor count because by default there is a threshold set at 1200
> open cursors that it is at warning status.
> Is there some maximum number of open cursors for the entire instance
> that if we reach that number it's going to blow up shoot sparks out of
> the back of the server....
I forgot to mention as well, that since making this post I decided to experiment in a test system and set the open cursors to 10 and then exceed that in a session just to see what would happen, as I hadn't ever seen this problem before. I can't remember what error number it was right off hand but I didn't receive an ora- error in that session. Received on Mon Mar 17 2008 - 07:17:59 CDT