tree c302999b2a3bea4de9374a7d9db568b4345e9eac
parent 2148b62395e0389db397b06dfc6359b2b64c4490
author Eoghan Glynn <eglynn@redhat.com> 1330612037 -0500
committer Eoghan Glynn <eglynn@redhat.com> 1330950248 +0000

Redrive rate limited API calls.

Transparently redrive calls throttled by nova rate limiting, with
an intra-retry delay governed by the Retry-After response header.
Invocations are retried at most twice.

This avoids spurious test failures when the target nova installation
is using the default rate limits, or explicitly configured limits too
low for the cadence of tempest test cases.

Change-Id: I6c701b24f59998a98e6f515a2861a458470ee40c