Comment 4 for bug 1287613

Reviewed: https://review.openstack.org/78079
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=ffff1cb13281894dcbbdfa4bc6f63fec4673f10c
Submitter: Jenkins
Branch: master

commit ffff1cb13281894dcbbdfa4bc6f63fec4673f10c
Author: ZhiQiang Fan <email address hidden>
Date: Wed Mar 5 10:58:59 2014 +0800

    Skip central agent interval_task when keystone fails

    There is a chance when ceilometer-agent-central try to trigger interval_task
    but keystone is not available, then an exception is raised but not caught, the
    outside oslo.loopingcall will stop calling the task function, finally leading
    to the agent-central service is no longer available forever, even the keystone
    is available again.

    We can skip the particular interval_task when keystone is not available.

    Change-Id: I0849cafadac8fb8a7670aaa4cc76dc708bdb25a1
    Closes-Bug: #1287613