central agent will throw error on startup

[gordon chung]

2015-02-23 16:36:29.221 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.usage: No module named awsauth
2015-02-23 16:36:29.238 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.objects.size: No module named awsauth
2015-02-23 16:36:29.244 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.containers.objects: No module named awsauth
2015-02-23 16:36:29.256 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.objects: No module named awsauth
2015-02-23 16:36:29.257 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.containers.objects.size: No module named awsauth
2015-02-23 16:36:29.257 32569 ERROR ceilometer.agent.base [-] Failed to import extension for rgw.objects.containers: No module named awsauth

central agent will function normally but it'd be nice not to have these errors... maybe a config option?

[Chris Dent (cdent)]

As discussed in IRC, this is entirely the problem with entry points being used as the basis for plugin configuration.

It's fine for setup.cfg to say where a plugin can be found, but is it right that it also says that the system should try to activate that plugin?

[gordon chung (chungg)]

there technically is away to validate before loading

http://docs.openstack.org/developer/stevedore/managers.html#enabledextensionmanager

[Rabi Mishra (rabi)]

I don't see the central agent functioning normally with devstack latest code base. It fails with the following error on fedora 21.

2015-02-23 15:43:48.620 50372 CRITICAL ceilometer [-] ImportError: No module named awsauth
2015-02-23 15:43:48.620 50372 TRACE ceilometer Traceback (most recent call last):
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/usr/bin/ceilometer-agent-central", line 9, in <module>
2015-02-23 15:43:48.620 50372 TRACE ceilometer load_entry_point('ceilometer==2015.1.dev91', 'console_scripts', 'ceilometer-agent-central')()
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/cmd/polling.py", line 74, in main_central
2015-02-23 15:43:48.620 50372 TRACE ceilometer os_service.launch(manager.AgentManager(['central'])).wait()
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/agent/manager.py", line 47, in __init__
2015-02-23 15:43:48.620 50372 TRACE ceilometer group_prefix=cfg.CONF.polling.partitioning_group_prefix)
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/agent/base.py", line 223, in __init__
2015-02-23 15:43:48.620 50372 TRACE ceilometer self.extensions = list(itertools.chain(*list(extensions)))
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/agent/base.py", line 218, in <genexpr>
2015-02-23 15:43:48.620 50372 TRACE ceilometer for namespace in namespaces)
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/agent/base.py", line 250, in _extensions
2015-02-23 15:43:48.620 50372 TRACE ceilometer on_load_failure_callback=_catch_extension_load_error,
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/usr/lib/python2.7/site-packages/stevedore/extension.py", line 92, in __init__
2015-02-23 15:43:48.620 50372 TRACE ceilometer verify_requirements)
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/usr/lib/python2.7/site-packages/stevedore/extension.py", line 170, in _load_plugins
2015-02-23 15:43:48.620 50372 TRACE ceilometer self._on_load_failure_callback(self, ep, err)
2015-02-23 15:43:48.620 50372 TRACE ceilometer File "/opt/stack/ceilometer/ceilometer/agent/base.py", line 245, in _catch_extension_load_error
2015-02-23 15:43:48.620 50372 TRACE ceilometer raise exc
2015-02-23 15:43:48.620 50372 TRACE ceilometer ImportError: No module named awsauth
2015-02-23 15:43:48.620 50372 TRACE ceilometer
ceilometer-acentral failed to start

[gordon chung (chungg)]

Rabi, please sync with latest code as the awsauth code was reverted https://review.openstack.org/#/c/158329/

[Eoghan Glynn (eglynn)]

Rabi, can you confirm whether you're still seeing this issue in master?

[gordon chung (chungg)]

this is still valid... or at least it shows up on every gate. i'll check with swami to see if he's actually working on it.

[Lan Qi song (lqslan)]

Any update for this bug, I am still facing this problem:

ceilometer central service can successfully start but with the following error:

Failed to import extension for rgw.usage: No module named awsauth
......

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/185295

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/185295
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=c9eb2d44df7cafde1294123d66445ebef4cfb76d
Submitter: Jenkins
Branch: master

commit c9eb2d44df7cafde1294123d66445ebef4cfb76d
Author: Lan Qi song <email address hidden>
Date: Mon May 25 10:35:57 2015 +0800

    Disable rgw pollster when aws module not found

    This patch will raise PollsterPermanentError in rgw pollster
    to disable those pollsters when requests-aws module not found.

    Change-Id: I880ec77467fae026f25e61d04d7dd76e08834b08
    Closes-Bug: #1424746

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/187901

[OpenStack Infra (hudson-openstack)]

Change abandoned by Lan Qi Song (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/187901
Reason: Thanks gordc & Zhi Qiang, abandon this patch.