7Jul/100
Puppet locking problem
If you run "puppetd --test" manually or via service and get this error:
Run of Puppet configuration client already in progress; skipping
Problem: the lock file is not removed properly. It's a known bug: http://projects.reductivelabs.com/issues/2888
Solution: manually remove /var/lib/puppet/state/puppetdlock
Also, you might need to check /var/run/ for the pid and delete/kill the process if it's indeed running
