FYI, pkgs git process cleanup

[Kevin Fenzi]

We started getting some failed builds today due to koji not being able
to get git checkouts from pkgs01. 

$ git clone -n
git://pkgs.fedoraproject.org/gnome-shell
/var/lib/mock/f17-build-1342530-216385/root/tmp/scmroot/gnome-shell
fatal: read error: Connection reset by peer Cloning
into /var/lib/mock/f17-build-1342530-216385/root/tmp/scmroot/gnome-shell...

and

$ git clone -n
git://pkgs.fedoraproject.org/digikam
/var/lib/mock/f17-build-1342529-216385/root/tmp/scmroot/digikam
fatal: read error: Connection reset by peer Cloning
into /var/lib/mock/f17-build-1342529-216385/root/tmp/scmroot/digikam...

There were some IP's hitting pkgs01 pretty hard on checkouts, but that
turns out to not be the real issue. There were a number of old stale
connections laying around, making it so it hit xinetd limits much
faster than normal. 

I killed 46 old git upload-pack processes and 51 old stale ssh
connections that were all from Feb, then restarted xinetd. This seemed
to clear things up. 

We may want to look at a automated script to clean up these processes?

kevin