Ceilometer compute agent does not provide any meters, stats

Issue

• ceilometer meter-list do not show meters from the compute nodes.

[root@xyz ~]# ceilometer  meter-list
+----------------------------------+-------+-----------------+--------------------------------------+------------------------------------------------+----------------------------------+
| Name                             | Type  | Unit            | Resource ID                          | User ID                                        | Project ID                       |
+----------------------------------+-------+-----------------+--------------------------------------+------------------------------------------------+----------------------------------+
| identity.authenticate.success    | delta | user            | 36e4c74d34304d8d815ce7520366cb1e     | 36e4c74d34304d8d815ce7520366cb1e               | None                             |
| identity.authenticate.success    | delta | user            | 6a788be27f404e688da5241bd568c993     | 6a788be27f404e688da5241bd568c993               | None                             |
| identity.authenticate.success    | delta | user            | 6d6f937ec3514209a84b78ed27056418     | 6d6f937ec3514209a84b78ed27056418               | None                             |
| identity.authenticate.success    | delta | user            | 6e530e5a86444228ae4c8b89650f0e77     | 6e530e5a86444228ae4c8b89650f0e77               | None                             |
| identity.authenticate.success    | delta | user            | 7d1222f1f29e4af4a8af871547c4b913     | 7d1222f1f29e4af4a8af871547c4b913               | None                             |
| identity.authenticate.success    | delta | user            | 8a3feeb9f5f54a8e82bc05701b895c76     | 8a3feeb9f5f54a8e82bc05701b895c76               | None                             |
| identity.authenticate.success    | delta | user            | b6236d79f80c4141b3fa517f7ba20e4b     | b6236d79f80c4141b3fa517f7ba20e4b               | None                             |
| identity.project.created         | delta | project         | 14349aa045ac4173a3904ed13b10acce     | 8a3feeb9f5f54a8e82bc05701b895c76               | 14349aa045ac4173a3904ed13b10acce |
| identity.project.created         | delta | project         | 66d287ac675e4492aea30162738dda72     | None                                           | None                             |
| identity.project.created         | delta | project         | 678001c6b6b9458a9128de2d97b84fae     | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| identity.role.created            | delta | role            | 5b10d922fbf14efda6b682ddb1cf8fcd     | openstack:f8795d19-94a2-4d76-97fa-05c09f78a6ea | None                             |
| identity.role.created            | delta | role            | 810922789c3c429da92e06f929ac8712     | None                                           | None                             |
| identity.role.created            | delta | role            | 9fe2ff9ee4384b1894a90878d3e92bab     | openstack:d2dd71e6-3a02-4740-95aa-c1816cbdfbca | None                             |
| identity.role.created            | delta | role            | a27e2ede99a44f679200ecf8998554fe     | None                                           | None                             |
| identity.role.created            | delta | role            | fb5cf990fb70479bb2ba9f4156052322     | None                                           | None                             |
| identity.role_assignment.created | delta | role_assignment | 5b10d922fbf14efda6b682ddb1cf8fcd     | openstack:f8795d19-94a2-4d76-97fa-05c09f78a6ea | None                             |
| identity.role_assignment.deleted | delta | role_assignment | 9fe2ff9ee4384b1894a90878d3e92bab     | openstack:d2dd71e6-3a02-4740-95aa-c1816cbdfbca | None                             |
| identity.user.created            | delta | user            | 36e4c74d34304d8d815ce7520366cb1e     | 36e4c74d34304d8d815ce7520366cb1e               | None                             |
| identity.user.created            | delta | user            | 6a788be27f404e688da5241bd568c993     | 6a788be27f404e688da5241bd568c993               | None                             |
| identity.user.created            | delta | user            | 6d6f937ec3514209a84b78ed27056418     | 6d6f937ec3514209a84b78ed27056418               | None                             |
| identity.user.created            | delta | user            | 6e530e5a86444228ae4c8b89650f0e77     | 6e530e5a86444228ae4c8b89650f0e77               | None                             |
| identity.user.created            | delta | user            | 7d1222f1f29e4af4a8af871547c4b913     | 7d1222f1f29e4af4a8af871547c4b913               | None                             |
| identity.user.created            | delta | user            | 869ae32cea564f1a998fada107e4cc48     | None                                           | None                             |
| identity.user.created            | delta | user            | 8a3feeb9f5f54a8e82bc05701b895c76     | 8a3feeb9f5f54a8e82bc05701b895c76               | None                             |
| identity.user.created            | delta | user            | b6236d79f80c4141b3fa517f7ba20e4b     | b6236d79f80c4141b3fa517f7ba20e4b               | None                             |
| identity.user.created            | delta | user            | cfcaf134267e4a33af0f00e5e794a167     | None                                           | None                             |
| identity.user.created            | delta | user            | fe9521b4564a4126a2ad802f39e13bf3     | None                                           | None                             |
| image                            | gauge | image           | 32335bc6-a931-486f-b18d-40b3d359154f | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| image.size                       | gauge | B               | 32335bc6-a931-486f-b18d-40b3d359154f | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| network                          | gauge | network         | 4deebb26-973b-46ab-be16-27aaae1a2aeb | 6e530e5a86444228ae4c8b89650f0e77               | 678001c6b6b9458a9128de2d97b84fae |
| network.create                   | delta | network         | 4deebb26-973b-46ab-be16-27aaae1a2aeb | 6e530e5a86444228ae4c8b89650f0e77               | 678001c6b6b9458a9128de2d97b84fae |
| storage.api.request              | delta | request         | 14349aa045ac4173a3904ed13b10acce     | 8a3feeb9f5f54a8e82bc05701b895c76               | 14349aa045ac4173a3904ed13b10acce |
| storage.objects                  | gauge | object          | 678001c6b6b9458a9128de2d97b84fae     | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| storage.objects.containers       | gauge | container       | 678001c6b6b9458a9128de2d97b84fae     | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| storage.objects.incoming.bytes   | delta | B               | 14349aa045ac4173a3904ed13b10acce     | 8a3feeb9f5f54a8e82bc05701b895c76               | 14349aa045ac4173a3904ed13b10acce |
| storage.objects.size             | gauge | B               | 678001c6b6b9458a9128de2d97b84fae     | None                                           | 678001c6b6b9458a9128de2d97b84fae |
| subnet                           | gauge | subnet          | dbe2a790-2636-4e21-8304-bf0f4df25de2 | 6e530e5a86444228ae4c8b89650f0e77               | 678001c6b6b9458a9128de2d97b84fae |
| subnet.create                    | delta | subnet          | dbe2a790-2636-4e21-8304-bf0f4df25de2 | 6e530e5a86444228ae4c8b89650f0e77               | 678001c6b6b9458a9128de2d97b84fae |
+----------------------------------+-------+-----------------+--------------------------------------+------------------------------------------------+----------------------------------+

• From ceilometer/compute.log :

2015-12-22 21:55:03.618 1304 ERROR ceilometer.agent.base [-] Unable to discover resources: ('Connection aborted.', error(101, 'ENETUNREACH'))
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base Traceback (most recent call last):
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/ceilometer/agent/base.py", line 346, in discover
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     discovered = discoverer.discover(self, param)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/ceilometer/compute/discovery.py", line 37, in discover
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     instances = self.nova_cli.instance_get_all_by_host(cfg.CONF.host)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/ceilometer/nova_client.py", line 48, in with_logging
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     return func(*args, **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/ceilometer/nova_client.py", line 145, in instance_get_all_by_host
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     search_opts=search_opts))
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/v2/servers.py", line 583, in list
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     return self._list("/servers%s%s" % (detail, query_string), "servers")
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/base.py", line 64, in _list
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     _resp, body = self.api.client.get(url)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 450, in get
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     return self._cs_request(url, 'GET', **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 428, in _cs_request
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     resp, body = self._time_request(url, method, **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 397, in _time_request
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     resp, body = self.request(url, method, **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 368, in request
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/requests/api.py", line 50, in request
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     response = session.request(method=method, url=url, **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 465, in request
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     resp = self.send(prep, **send_kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 573, in send
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     r = adapter.send(request, **kwargs)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base   File "/usr/lib/python2.7/site-packages/requests/adapters.py", line 415, in send
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base     raise ConnectionError(err, request=request)
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base ConnectionError: ('Connection aborted.', error(101, 'ENETUNREACH'))
2015-12-22 21:55:03.618 1304 TRACE ceilometer.agent.base 
2015-12-22 21:55:03.619 1304 INFO ceilometer.agent.base [-] Skip polling pollster network.outgoing.bytes, no resources found