Uniform Airflow Migration Strategy¶
Requirements¶
This strategy has a dependency on the server having Intel’s Power Node Manager 3.0 or later enabled.
Metrics¶
The uniform_airflow strategy requires the following metrics:
| metric | service name | plugins | comment |
|---|---|---|---|
hardware.ipmi.node.airflow |
ceilometer | IPMI | |
hardware.ipmi.node.temperature |
ceilometer | IPMI | |
hardware.ipmi.node.power |
ceilometer | IPMI |
Planner¶
Default Watcher’s planner:
Weight planner implementation
This implementation builds actions with parents in accordance with weights. Set of actions having a higher weight will be scheduled before the other ones. There are two config options to configure: action_weights and parallelization.
Limitations
- This planner requires to have action_weights and parallelization configs tuned well.
Configuration¶
Strategy parameters are:
| parameter | type | default Value | description |
|---|---|---|---|
threshold_airflow |
Number | 400.0 | Airflow threshold for migration Unit is 0.1CFM |
threshold_inlet_t |
Number | 28.0 | Inlet temperature threshold for migration decision |
threshold_power |
Number | 350.0 | System power threshold for migration decision |
period |
Number | 300 | Aggregate time period of ceilometer |
Efficacy Indicator¶
None
Algorithm¶
For more information on the Uniform Airflow Migration Strategy please refer to: https://specs.openstack.org/openstack/watcher-specs/specs/newton/implemented/uniform-airflow-migration-strategy.html
How to use it ?¶
$ openstack optimize audittemplate create \
at1 airflow_optimization --strategy uniform_airflow
$ openstack optimize audit create -a at1 -p threshold_airflow=410 \
-p threshold_inlet_t=29.0 -p threshold_power=355.0 -p period=310
External Links¶
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