On 9 March 2016 at 09:14, Assaf Muller <as...@redhat.com> wrote: > On Wed, Mar 9, 2016 at 9:40 AM, Ihar Hrachyshka <ihrac...@redhat.com> > wrote: > > Vikash Kumar <vikash.ku...@oneconvergence.com> wrote: > > > >> > >> > >> On Wed, Mar 9, 2016 at 3:42 PM, Vikash Kumar > >> <vikash.ku...@oneconvergence.com> wrote: > >> I have written a sample neutron agent which subscribe for the > AFTER_CREATE > >> event of router. I have defined a sample method as callback, but the > method > >> doesn't gets called anytime. > >> > >> Also, in logs: > >> > >> 2016-03-09 01:36:08.220 7075 DEBUG neutron.callbacks.manager [-] > >> Subscribe: <function add_router at 0x7fdbbc482ed8> router after_create > >> subscribe /opt/stack/neutron/neutron/callbacks/manager.py:41 > >> > >> > >> which means the subscription is successful. > >> > >> Do I need to enable anything in config file to get that ? Or am I > >> missing something ? > > > > > > First, nothing oslo specific is discussed here, so [oslo] tag is probably > > redundant. > > > > Overall, I believe you try to rely on wrong thing that won’t deliver for > > you: callbacks are internal to neutron-server, so events triggered by > > neutron-servers will never reach any other processes (like your agent). > > The same callbacks mechanism is also used in the L3 agent, but as Ihar > said, events in one process (neutron-server) will not trigger > callbacks in another process (l3-agent). If that's what you want, > you'll need RPC. >
Callbacks is a general pub/sub local communication mechanism, whether it applies to neutron-server or an agent. Clarifying here: https://review.openstack.org/#/c/290700/ > > > > > More info: > http://docs.openstack.org/developer/neutron/devref/callbacks.html > > > > Ihar > > > > > __________________________________________________________________________ > > OpenStack Development Mailing List (not for usage questions) > > Unsubscribe: > openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >
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