The watcher.decision_engine.planner.workload_stabilization Module¶

class watcher.decision_engine.planner.workload_stabilization.BaseActionValidator[source]¶

Bases: object

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.ChangeNovaServiceStateActionValidator[source]¶

Bases: watcher.decision_engine.planner.workload_stabilization.BaseActionValidator

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.MigrationActionValidator[source]¶

Bases: watcher.decision_engine.planner.workload_stabilization.BaseActionValidator

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.NOPActionValidator[source]¶

Bases: watcher.decision_engine.planner.workload_stabilization.BaseActionValidator

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.ResizeActionValidator[source]¶

Bases: watcher.decision_engine.planner.workload_stabilization.BaseActionValidator

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.SleepActionValidator[source]¶

Bases: watcher.decision_engine.planner.workload_stabilization.BaseActionValidator

validate_parents(resource_action_map, action)[source]¶

class watcher.decision_engine.planner.workload_stabilization.WorkloadStabilizationPlanner(config)[source]¶

Bases: watcher.decision_engine.planner.base.BasePlanner

Workload Stabilization planner implementation

This implementation comes with basic rules with a set of action types that are weighted. An action having a lower weight will be scheduled before the other ones. The set of action types can be specified by ‘weights’ in the watcher.conf. You need to associate a different weight to all available actions into the configuration file, otherwise you will get an error when the new action will be referenced in the solution produced by a strategy.

Limitations

• This is a proof of concept that is not meant to be used in production

create_action(action_plan_id, action_type, input_parameters=None)[source]¶

classmethod get_config_opts()[source]¶

Defines the configuration options to be associated to this loadable

Returns:	A list of configuration options relative to this Loadable
Return type:	list of oslo_config.cfg.Opt instances

load_child_class(child_name)[source]¶

schedule(context, audit_id, solution)[source]¶

The planner receives a solution to schedule

Parameters:	solution (BaseSolution subclass instance) – A solution provided by a strategy for scheduling audit_uuid (str) – the audit uuid
Returns:	Action plan with an ordered sequence of actions such that all security, dependency, and performance requirements are met.
Return type:	watcher.objects.ActionPlan instance