x/collectd-openstack-plugins
Code Issues Proposed changes

Update units for new virt plugin metrics

Browse Source 
- Rename libvirt to virt in units.py
- Add new metrics for virt/perf
  - this requires three parameters to map correctly
- Updated unit() to use an optional pltype_instance parameter
- Add unit test to test behaviour with different numbers of parameters

Change-Id: I94437aab309fa6c4d70e52e93d8858b54dcfeedb
Co-Authored-By: Mark O'Neill <mark1.oneill@intel.com>
Closes-Bug: #1714996
This commit is contained in:
Emma Foley 2017-08-30 13:33:09 +00:00
parent 51ad38a2c3
commit 0c08c2e2b3
3 changed files with 70 additions and 2 deletions
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10
collectd_openstack/common/settings.py
View File

@ -102,10 +102,16 @@ class Config(object):
else:
LOGGER.info('Configuration OK')
def unit(self, plugin, pltype):
def unit(self, plugin, pltype, pltype_instance=None):
"""Get unit for plugin and type"""
if pltype:
if plugin == "virt" and pltype == "perf":
unit = self._units.get(
"%s.%s.%s" % (plugin, pltype, pltype_instance))
if unit:
return unit
elif pltype:
unit = self._units.get('%s.%s' % (plugin, pltype))
if unit:
return unit

25
collectd_openstack/common/units.py
View File

@ -119,6 +119,8 @@ UNITS = {
'irq': 'Irq/s',
# DO NOT UPDATE, modify 'virt' plugin instead
# These mappings are to support older versions of collectd
'libvirt.if_octets': 'B/s',
'libvirt.virt_cpu_total': 'ms',
'libvirt.disk_octets': 'B/s',
@ -276,6 +278,29 @@ UNITS = {
'varnish.total_requests': 'Requests',
'varnish.total_operations': 'Operations',
'virt.cpu_affinity': '',
'virt.disk_error': '',
'virt.disk_octets': 'B/s',
'virt.disk_ops': 'Ops/s',
'virt.disk_time': 'ns',
'virt.if_dropped': 'Packets/s',
'virt.if_errors': 'Errors/s',
'virt.if_octets': 'B/s',
'virt.if_packets': 'Packets/s',
'virt.job_stats': '',
'virt.memory': 'kb',
'virt.percent': '%',
'virt.virt_cpu_total': 'ns',
'virt.virt_vcpu': 'ns/cpu',
'virt.perf.perf_cmt': 'B',
'virt.perf.perf_mbmt': 'B',
'virt.perf.mbml': 'B',
'virt.perf.perf_cpu_cycles': 'Cycles',
'virt.perf.instructions': 'Instructions',
'virt.perf.cache_references': 'Hits',
'virt.perf.perf_cache_misses': 'Misses',
'vmem.vmpage_action': 'Actions',
'vmem.vmpage_faults': 'Faults/s',
'vmem.vmpage_io': 'Pages/s',

37
collectd_openstack/tests/common/test_config.py
View File

@ -177,6 +177,43 @@ class TestConfig(TestCase):
mock.call('Configuration parameter %s not set.', "OS_AUTH_URL"),
mock.call('Collectd plugin will not work properly')])
def test_unit_libvirt(self):
"""Test that unit uses three params only when pl=libvirt.
Set-up: Define a subset of unit mappings
Test: get unit mapping for:
* libvirt (three params)
* some other plugin (two params)
* some other plugin (three params)
Expected behaviour:
* libvirt.perf unit mappings should use three params
* other plugins are mapped using two params
* using three params to access other plugins fails
"""
# Define a sub-set of unit-mappings
self.config._units = {"virt.type.type_instance": "unreachable_unit",
"virt.type": "virt_unit",
"virt.perf.type": "perf_type_unit",
"virt.perf": "unreachable_unit",
"other.type": "other_unit",
"other.type.not_instance": "unreachable_unit",
}
# Try and get the units
self.assertNotEqual("unreachable_unit",
self.config.unit("virt", "type", pltype_instance="type"))
self.assertEqual("virt_unit",
self.config.unit("virt", "type"))
self.assertNotEqual("unreachable_unit",
self.config.unit("virt", "perf"))
self.assertEqual("other_unit",
self.config.unit("other", "type"))
self.assertNotEqual("unreachable_unit",
self.config.unit("other", "type",
pltype_instance="not_instance"))
self.assertEqual("perf_type_unit",
self.config.unit("virt", "perf", pltype_instance="type"))
@mock.patch.object(settings, 'LOGGER', autospec=True)
def test_user_units(self, LOGGER):
"""Test configuration with user defined units"""