How do I make sure we don’t run out of available connections for our
nginx 6 box?
For instance when I run stub_status I see that I have x active
connections. I can also see how the keepalive setting in nginx impacts
It seems that under heavy load where connections are coming in at a much
faster rate than the keepalive timeout is expiring, that things could
get to a point where the number of active connections becomes too great
and then there would not be enough connections available for new users.
A few questions please:
Is such a situation that I described above possible?
In such a situation, would nginx automatically free the idle
keepalive connections so that it could have more connections available
What nginx and/or Linux settings (I am using Fedora core 8 if that
matters) controls what the maximum number of connections is that my box
can have active? How can this be bumped up?
Obviously under some heavy load a box will reach a physical maximum that
it is capable of serving. That is ok and why we have other boxes
available. However I want to understand how this works so that I can
keep an eye on the connections and say “Hey that’s getting awfully close
to our limit - time to get another box up!”. Right now I have no idea
how to predict what that limit is. Thanks!