Comment 6 for bug 1499330

Reviewed: https://review.openstack.org/231276
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=182034904f7da306c677e77c880a6266b1b5cd50
Submitter: Jenkins
Branch: stable/liberty

commit 182034904f7da306c677e77c880a6266b1b5cd50
Author: Steven Hardy <email address hidden>
Date: Thu Sep 24 18:41:34 2015 +0100

    Reduce frequency of logging environment resources

    Currently we log all template resources every time any API call
    happens which indirectly creates an Environment object, which
    results in a lot of duplicate bloat in the heat logs (not even
    at debug level..)

    So, instead log all environment resources (e.g those from resource
    plugins and the global environment) only when we start the
    service, and log user-provided template resources only when we
    do the template validation on create/update, for only the root stack,
    because we pass a derived subset environment down to all children.

    We also switch to using the string representation of the ResourceInfo
    objects, as this contains a bit more useful info than the current
    log format.

    Change-Id: I20007c1ad6bf8b1479c1d60a5c392b8b9e1c06c4
    Closes-Bug: #1499330
    (cherry picked from commit 5d6234ecf64650b0eb7bd92eb530e899ff061457)