Comment 7 for bug 1431986

Reviewed: https://review.openstack.org/165566
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=7bdd0bf2c5ea97f5dd500b0e4fdaaadf6ab00889
Submitter: Jenkins
Branch: master

commit 7bdd0bf2c5ea97f5dd500b0e4fdaaadf6ab00889
Author: Ashwin Agate <email address hidden>
Date: Wed Mar 18 18:55:59 2015 +0000

    Prevent ceilometer expirer from causing deadlocks

    Prevents deadlocks from occuring by deleting
    from each of sample, meter, resource and metadata_text
    metadata_bigint, metadata_bool and metadata_float tables
    in separate transactions

    Closes-Bug: #1431986
    Change-Id: I8670af172796e116e9c17a964063e6d86264efc6