Change mydb_seteventschedulerpid() so that it fails if there is already a pid associated with the experiment (unless clearing it to zero). This enforces the restriction that there should only be a single event scheduler running for an experiment!
Change mydb_seteventschedulerpid() so that it fails if there is
already a pid associated with the experiment (unless clearing it to
zero). This enforces the restriction that there should only be a
single event scheduler running for an experiment!

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome