watcher/doc/source/strategies/vm_workload_consolidation.rst

VM Workload Consolidation Strategy

Synopsis

display name: VM Workload Consolidation Strategy

goal: vm_consolidation

watcher.decision_engine.strategy.strategies.vm_workload_consolidation.VMWorkloadConsolidation

Requirements

Metrics

The vm_workload_consolidation strategy requires the following metrics:

metric	service name	plugins	comment
cpu memory.resident memory disk.root.size	ceilometer ceilometer ceilometer ceilometer	none none none none

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
change_nova_service_state	watcher.applier.actions.change_nova_service_state.ChangeNovaServiceState

Planner

Default Watcher's planner:

watcher.decision_engine.planner.weight.WeightPlanner

Configuration

Strategy parameter is:

parameter	type	default Value	description
period	Number	3600	The time interval in seconds for getting statistic aggregation from metric data source

Efficacy Indicator

watcher.decision_engine.goal.efficacy.specs.ServerConsolidation.get_global_efficacy_indicator

Algorithm

For more information on the VM Workload consolidation strategy please refer to: https://specs.openstack.org/openstack/watcher-specs/specs/mitaka/implemented/zhaw-load-consolidation.html

How to use it ?

$ openstack optimize audittemplate create \
  at1 server_consolidation --strategy vm_workload_consolidation

$ openstack optimize audit create -a at1

External Links

Spec URL https://specs.openstack.org/openstack/watcher-specs/specs/mitaka/implemented/zhaw-load-consolidation.html