ceilometerclient shouldn't depend on running of aodh

[Liusheng]

Currently, if we stop aodh services, the ceilometerclient will be unavailable, that because ceilometerclient need to connect aodh-api when init client. see:

root@szxbzci0007:/opt/stack/python-aodhclient# ceilometer sample-list -m cpu_util
HTTPConnectionPool(host='10.229.40.107', port=8042): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f4825c63b50>: Failed to establish a new connection: [Errno 111] Connection refused',))

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/289653

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/289653
Committed: https://git.openstack.org/cgit/openstack/python-ceilometerclient/commit/?id=78869fbccaffdf625fc1ec4ed3108bb7de892720
Submitter: Jenkins
Branch: master

commit 78869fbccaffdf625fc1ec4ed3108bb7de892720
Author: liusheng <email address hidden>
Date: Tue Mar 8 09:41:22 2016 +0800

    Decouple ceilometerclient without aodh services running

    Currently, the ceilometerclient will be broken if aodh services not
    running, it will be worse if users don't want alarming service and they
    must start the aodh services.

    Change-Id: Idf7468f28cee001262b67b6e110357ffc971535a
    Closes-Bug: #1550095

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/291833

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/291833
Committed: https://git.openstack.org/cgit/openstack/python-ceilometerclient/commit/?id=5a56d6eb8fef918f227aaa42d1e5b2ad2972d00e
Submitter: Jenkins
Branch: stable/mitaka

commit 5a56d6eb8fef918f227aaa42d1e5b2ad2972d00e
Author: liusheng <email address hidden>
Date: Tue Mar 8 09:41:22 2016 +0800

    Decouple ceilometerclient without aodh services running

    Currently, the ceilometerclient will be broken if aodh services not
    running, it will be worse if users don't want alarming service and they
    must start the aodh services.

    Change-Id: Idf7468f28cee001262b67b6e110357ffc971535a
    Closes-Bug: #1550095
    (cherry picked from commit 78869fbccaffdf625fc1ec4ed3108bb7de892720)

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/python-ceilometerclient 2.4.0 release.

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/python-ceilometerclient 2.5.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-ceilometerclient 2.4.0 release.