[Openstack] How to get all detail RPC message and detail context in neutron docs?

김기석 [Kiseok Kim] kskim at netmarble.com
Thu Apr 6 06:20:12 UTC 2017


Sam,

I have no idea whether or not the document exists. (I want to read too)

about L3 RPC messages(L3_AGENT topic), its client-side is implemented in l3_router_plugin.[1]
There is an oslo_meessaging document.[2] I guess it would help.

[1] https://github.com/openstack/neutron/blob/master/neutron/api/rpc/agentnotifiers/l3_rpc_agent_api.py#L37
[2] https://docs.openstack.org/developer/oslo.messaging/

good luck!

From: Sam [mailto:batmanustc at gmail.com]
Sent: Thursday, April 06, 2017 10:56 AM
To: 김기석 [Kiseok Kim]
Cc: OpenStack General; OpenStack Development Mailing List (not for usage questions)
Subject: Re: [Openstack] How to get all detail RPC message and detail context in neutron docs?

For example, detail of the messages of topics.L3_AGENT

2017-04-06 9:38 GMT+08:00 Sam <batmanustc at gmail.com<mailto:batmanustc at gmail.com>>:
Thank you all.

For 'context', I got it.
For RPCs, is there some document or blog or some debug method to get its detal contains in neutron L3 Agent?

2017-04-06 9:33 GMT+08:00 김기석 [Kiseok Kim] <kskim at netmarble.com<mailto:kskim at netmarble.com>>:
Hi Sam,

that 'context' is olso_context and neutron use it with addition attributes.

oslo.context has to_dict method,
so you could add debug log in 'agent_updated' method like:

           LOG.debug("context in agent_updated: %s", context.to_dict())

and you can find out the attributes of context in
https://github.com/openstack/neutron-lib/blob/master/neutron_lib/context.py#L83-L92,
https://github.com/openstack/oslo.context/blob/master/oslo_context/context.py#L310-L332
.

From: Sam [mailto:batmanustc at gmail.com<mailto:batmanustc at gmail.com>]
Sent: Wednesday, April 05, 2017 7:10 PM
To: OpenStack General; OpenStack Development Mailing List (not for usage questions)
Subject: [Openstack] How to get all detail RPC message and detail context in neutron docs?

Hi all,

I'm working on neutron L3 Agent and some other Agent. I found that there are lots of RPCs including RPC call and notification and lots of 'context' as bellow. But I don't know its detail context, can I get these from some docs?

If there are no docs, could I get these using some debug method? Like '--debug' option or using pdb or something?

RPC: like 'agent_updated' in neutron/neutron/agent/l3/agent.py Line759.

context: it's param in some function like 'def router_added_to_agent(self, context, payload):' in neutron/neutron/agent/l3/agent.py.


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