Comment 2 for bug 1573822

Hi Jeremy,

We decide to merge central agent and compute agent because they are basically same: do some polling job, ref: https://github.com/openstack/telemetry-specs/blob/master/specs/kilo/merge-compute-and-central-agents.rst

and in Kilo, we have backward compatibility support, but since Liberty, we drop it to encourage use the new style command:
ceilometer-polling --polling-namespaces compute
ceilometer-polling --polling-namespaces central
ceilometer-polling --polling-namespaces ipmi
to replace previous ceilometer-agent-central/compute/ipmi

Cheers