Comment 5 for bug 1445227

Reviewed: https://review.openstack.org/175807
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=f5b994829bbd19794eba062ea79599f3b78a9286
Submitter: Jenkins
Branch: stable/kilo

commit f5b994829bbd19794eba062ea79599f3b78a9286
Author: ZhiQiang Fan <email address hidden>
Date: Fri Apr 17 17:06:13 2015 +0800

    use message id to generate hbase unique key

    We currently can disable computing signature for metering message,
    but HBase still uses signature as a dimension to generate unique row
    key, this will lead to different samples treated as same one.

    Message id should be used in stead of message signature, because
    id will always exist and also unique.

    Change-Id: I47cdce59c9934573076cf609ce1a0c37aea75c44
    Closes-Bug: #1445227
    (cherry picked from commit 15a92ec1ef2ab3e6d1d187ad909a0d5800ee4a2e)