msimonin 851bf0e6ad OSprofiler support ...

The OSprofiler is a distributed trace toolkit library.
It helps to trace internal calls of Openstack services including RPC, DB
and WSGI.

This patch integrates OSprofiler in Rally. Rally can trigger the
profiling on a per-iteration basis. To do so a secret key
(profiler_hmac_key) is stored alongside the credentials and used to
initialize the profiler in the constructor of the scenarios. A
configuration parameter (enable_profiler) can disabled the profiling.

Note that in this patch we don't embed the full osprofiler report but
only a trace id. This trace id can be used to retrieve the full trace
from the osprofiler tool later.

Change-Id: I7602856d094e073fde80d287b4d92b5750aacc3c
Co-Authored-By: rcherrueau <Ronan-Alexandre.Cherrueau@inria.fr>
Implements: spec osprofiler

2017-05-27 15:09:42 +02:00

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