Comment 18 for bug 1461172

Reviewed: https://review.openstack.org/220968
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=4b2e6842f320405cd963f560bc06849b4b7bb1eb
Submitter: Jenkins
Branch: master

commit 4b2e6842f320405cd963f560bc06849b4b7bb1eb
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

    Change-Id: I65a5bf4fbbcad6ba93a46d36cabe7844ff528d8d