Comment 26 for bug 1461172

Reviewed: https://review.openstack.org/233544
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=2051ffb822dd89112cf41681659a2d434bb8534d
Submitter: Jenkins
Branch: stable/kilo

commit 2051ffb822dd89112cf41681659a2d434bb8534d
Author: armando-migliaccio <email address hidden>
Date: Mon Sep 7 04:53:50 2015 -0700

    Retry metadata request on connection refused error

    This testcase may fail intermittently on 'Connection refused' error.
    This could be due to the fact that the metadata proxy setup is not exactly
    complete at the time the request is issued; in fact there is no
    synchronization between the router being up and the metadata request being
    issued, and clearly this may be the reason of accidental but seldom failures.

    In order to rule out this possibility and stabilize the test, let's retry
    on connection refused only. If we continue to fail, then the next step would
    be to dump the content of iptables to figure out why the error occurs.

    Closes-bug: #1461172

    Conflicts:
     neutron/tests/functional/agent/test_l3_agent.py

    Change-Id: I65a5bf4fbbcad6ba93a46d36cabe7844ff528d8d
    (cherry picked from commit 4b2e6842f320405cd963f560bc06849b4b7bb1eb)