Difference between revisions of "Ceilometer/blueprints/monitoring-metrics-object"
< Ceilometer | blueprints
Shengjie min (talk | contribs) (→Meters) |
Shengjie min (talk | contribs) (→Meters) |
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== Meters == | == Meters == | ||
In Ceilometer, the meters are polled in the form of Counter(namedtuple) as below, do we need two different peer objects or a common lower level object for both meters and metrics? | In Ceilometer, the meters are polled in the form of Counter(namedtuple) as below, do we need two different peer objects or a common lower level object for both meters and metrics? | ||
| − | + | <pre> | |
| − | + | Counter = collections.namedtuple('Counter', | |
| − | + | ' '.join([ | |
| − | + | 'name', | |
| − | + | 'type', | |
| − | + | 'unit', | |
| − | + | 'volume', | |
| − | + | 'user_id', | |
| − | + | 'project_id', | |
| − | + | 'resource_id', | |
| − | + | 'timestamp', | |
| − | + | 'resource_metadata', | |
| + | ])) | ||
| + | </pre> | ||
== Monitoring Metrics == | == Monitoring Metrics == | ||
Revision as of 08:56, 7 April 2013
Meters
In Ceilometer, the meters are polled in the form of Counter(namedtuple) as below, do we need two different peer objects or a common lower level object for both meters and metrics?
Counter = collections.namedtuple('Counter',
' '.join([
'name',
'type',
'unit',
'volume',
'user_id',
'project_id',
'resource_id',
'timestamp',
'resource_metadata',
]))
Monitoring Metrics
As the monitoring metrics, take ganglia metric as an example(Gmetad XML dump):
- -Host
- -Cluster Name
- -METRIC NAME="swap_free"
- -VAL="2097148"
- -TYPE="float"
- -UNITS="KB"
- -TN="138" - timestamp
- -TMAX="180" (like a leasetime - freshness)
- -DMAX="0" (how long to retain old records)
- -SLOPE="both" (+ = counter, others = gauge)
Mapping
| Ceilometer Counter | Ganglia Metric |
|---|---|
| name | METRIＣNAME |
| delta|cumulative) | positive|negative|both) more from metadata |
| unit | UNITS |
| volume | VAL |
| user_id | None (appropriate for a meter, not monitor) |
| project_id | None (appropriate for a meter, not monitor) |
| resource_id(swift: tenant_id, compute:instance_id, glance:image_id) | Host (FQDN) |
| timestamp | Ganglia TN (current time - TN = timestamp when metric published) |
| resource_metadata | NONE |
