Comment 9 for bug 1889372

Reviewed: https://review.opendev.org/745322
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=be81e6ee690a8a5f8bc15309d333ea8266f43af2
Submitter: Zuul
Branch: stable/ussuri

commit be81e6ee690a8a5f8bc15309d333ea8266f43af2
Author: Alex Schultz <email address hidden>
Date: Thu Aug 6 09:21:59 2020 -0600

    Add exponential backoff to ratelimited requests

    If we're ratelimited on a request, we should retry the request but back
    off significantly. Previously we're not really handling 429 any
    different than other requests which may lead to the requests being
    retried too quickly.

    Change-Id: I3832332abdfd7daaf373dc0924fec268f159d774
    Related-Bug: #1889372
    Related-bug: #1889122
    (cherry picked from commit d4f6eb64d4a54cfa90d4c1572ef54495f151fea5)