fuel-dev team mailing list archive

[Sergey Vasilenko <svasilenko@xxxxxxxxxxxx>]

>
> Q3. Neutron - is it in active/standy HA? I got this understanding from
> docs and want to understand why.
>

l3 and dhcp agents managed by pacemaker. Pasemaker controls, that one
instance of agent always started. If agent (or node at all) die --
pacemaker restarts it on another node. After this we start script, that
reschedule all routers/networks from dead agent to alive.


> I was told that Grizzly and Havanna support multiple l3 agents, but we
> don't leverage it on some reason in Fuel.
>

Yes, it supports, but haven't native rescheduling mechanism. We have tasks
for divide "controller" and "network router" node reles. In this taskset I
plan make special rescheduling agent for support multiple l3/dhcp agents at
time.