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Hi all,

I'm add ceilometer into my compute node, when I watch the ceilometer
compute log , I found this error .

2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters [-] Could
> not get disk.device.write.requests.rate events for
> 59277f16-6ccf-4b5a-9204-c75c8a97dff7: ['INTERNAL_ERROR',
> 'Rrd_interface.Internal_error("Rrd.Invalid_data_source(\\"vbd_xvda_read\\")")']:
> Failure: ['INTERNAL_ERROR',
> 'Rrd_interface.Internal_error("Rrd.Invalid_data_source(\\"vbd_xvda_read\\")")']
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters Traceback
> (most recent call last):
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/ceilometer/compute/pollsters/__init__.py",
> line 136, in get_samples
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> cache, instance, self._inspection_duration)
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/ceilometer/compute/pollsters/__init__.py",
> line 100, in _inspect_cached
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> result = list(result)
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/ceilometer/compute/virt/xenapi/inspector.py",
> line 176, in inspect_disk_rates
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> vm_ref, "vbd_%s_read" % vbd_rec['device']))
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/os_xenapi/client/objects.py", line 64, in
> <lambda>
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> return lambda *params: self._call_method(method_name, *params)
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/os_xenapi/client/objects.py", line 61, in
> _call_method
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> return self.session.call_xenapi(call, *args)
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/os_xenapi/client/session.py", line 200,
> in call_xenapi
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> return session.xenapi_request(method, args)
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/os_xenapi/client/XenAPI.py", line 130, in
> xenapi_request
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters
> result = _parse_result(getattr(self, methodname)(*full_params))
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters   File
> "/usr/lib/python2.7/site-packages/os_xenapi/client/XenAPI.py", line 212, in
> _parse_result
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters     raise
> Failure(result['ErrorDescription'])
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters Failure:
> ['INTERNAL_ERROR',
> 'Rrd_interface.Internal_error("Rrd.Invalid_data_source(\\"vbd_xvda_read\\")")']
> 2017-09-08 20:21:59.214 14826 ERROR ceilometer.compute.pollsters


How to resolve this error ?

The second question, when I check gnocchi metric list, why most of metric
have a none value in unit column ?

...
> | 04df7669-0578-43b6-9e7f-d413e7def0e6 | low                 |
> memory.usage                    | MB        |
> 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 135bd162-fc03-4395-9e24-b4709c438808 | low                 | memory
>                      | MB        | 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 1bb63ed1-f1da-4300-9e86-2d6fb902ece6 | low                 |
> disk.read.requests              | None      |
> 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 1c422d14-b254-46d8-b3b5-a78a5068592a | low                 |
> disk.read.requests.rate         | None      |
> 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 1cbc7050-4359-4d55-a3f0-383782223c49 | low                 |
> disk.ephemeral.size             | GB        |
> 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 237c02ae-0759-4ed6-8ec9-d25b06a398c0 | low                 | cpu
>                     | None      | 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> | 2cddcb76-bfa5-4c5b-b12a-2d3f0d270674 | low                 | cpu_util
>                      | %         | 59277f16-6ccf-4b5a-9204-c75c8a97dff7 |
> ...


I truncate the result
-- 
Cheers,



[image: --]
Adhi Priharmanto
[image: http://]about.me/a_dhi
<http://about.me/a_dhi?promo=email_sig>
+62-812-82121584
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