Comment 27 for bug 1306743

Reviewed: https://review.openstack.org/89737
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=65c6c3bac874a6f978854895943c15c15eb542e3
Submitter: Jenkins
Branch: master

commit 65c6c3bac874a6f978854895943c15c15eb542e3
Author: Steve Baker <email address hidden>
Date: Wed Apr 23 14:49:25 2014 +1200

    Do not query database for every metadata_get

    This change stores the rsrc_metadata locally when the Resource object
    is created so that the database is not queried every time
    metadata_get is called. There are some instances where the metadata
    must come from the database (eg, polling for waitcondition signal) so
    an optional refresh arg is added to metadata_get to force a database
    refresh of the stored rsrc_metadata.

    This results in one less sql query for every time metadata_get is called,
    which will help the optimising effort for
    Related-Bug: #1306743

    Change-Id: Iad2d810c299347ae3b6a4a8329bbd314ee4b5c16