deb-watcher/doc/source/strategies/uniform_airflow.rst

Uniform Airflow Migration Strategy

Synopsis

display name: uniform_airflow

goal: airflow_optimization

watcher.decision_engine.strategy.strategies.uniform_airflow

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 hardware.ipmi.node.temperature hardware.ipmi.node.power	ceilometer ceilometer ceilometer	IPMI IPMI IPMI

Cluster data model

Default Watcher's Compute cluster data model:

watcher.decision_engine.model.collector.nova.NovaClusterDataModelCollector

Actions

Default Watcher's actions:

action	description
migration	watcher.applier.actions.migration.Migrate

Planner

Default Watcher's planner:

watcher.decision_engine.planner.weight.WeightPlanner

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

• Intel Power Node Manager 3.0