Don't log exception for special non-existing methods

[Oleg Bondarev]

Some systems may want to check openstack services readiness/liveness by sending some "health probe" RPC messages. However not all services do support such health probe methods in their RPC API.
So for example current implementation of probes in openstack-helm/neutron charts calls a non-existing RPC API on the agents and parses the output for NoSuchMethod error.
While working OK, it fills logs of pods with errors.

The proposal is to check method name and not log errors in case name ends with 'ignore_errors'.
This small handler on oslo.messaging side will let avoid changes in multiple services.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/700384

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/700384
Committed: https://git.openstack.org/cgit/openstack/oslo.messaging/commit/?id=d7eb89eac8f76c46849f5e0d18a7ea00dc2d07bb
Submitter: Zuul
Branch: master

commit d7eb89eac8f76c46849f5e0d18a7ea00dc2d07bb
Author: Oleg Bondarev <email address hidden>
Date: Mon Dec 23 11:32:28 2019 +0400

    Don't log NoSuchMethod for special non-existing methods

    Such non-existing methods are used as health probes.
    Please see bug for details.

    Change-Id: I8f6b4a669ec11721f76cf03abcd7d802c3c11eb5
    Closes-Bug: #1857319

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/oslo.messaging 11.0.0 release.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/753526

[OpenStack Infra (hudson-openstack)]

Change abandoned by zhen (<email address hidden>) on branch: stable/rocky
Review: https://review.opendev.org/753526