Comment 0 for bug 1436414

Symptoms:
 * Pacemaker tells that resource p_neutron-dhcp-agent in unmanaged state
 * "neutron agent-list | grep DHCP" tells that dhcp agents dead on all 3 controllers
 * the last message in dhcp agent logs is "Caught SIGTERM, exiting"
 * there are no agent processes on controllers

Environment:
 * MOS 6.1 build 192
 * Ubuntu + Neutron GRE
 * OpenStack contains more than 2000 networks