101 lines
2.6 KiB
ReStructuredText
101 lines
2.6 KiB
ReStructuredText
======================
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Saving Energy Strategy
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======================
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Synopsis
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--------
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**display name**: ``Saving Energy Strategy``
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**goal**: ``saving_energy``
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.. watcher-term:: watcher.decision_engine.strategy.strategies.saving_energy.SavingEnergy
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Requirements
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------------
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This feature will use Ironic to do the power on/off actions, therefore
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this feature requires that the ironic component is configured.
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And the compute node should be managed by Ironic.
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Ironic installation: https://docs.openstack.org/ironic/latest/install/index.html
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Cluster data model
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******************
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Default Watcher's Compute cluster data model:
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.. watcher-term:: watcher.decision_engine.model.collector.nova.NovaClusterDataModelCollector
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Actions
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*******
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.. list-table::
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:widths: 30 30
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:header-rows: 1
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* - action
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- description
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* - ``change_node_power_state``
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- .. watcher-term:: watcher.applier.actions.change_node_power_state.ChangeNodePowerState
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Planner
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*******
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Default Watcher's planner:
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.. watcher-term:: watcher.decision_engine.planner.weight.WeightPlanner
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Configuration
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-------------
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Strategy parameter is:
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====================== ====== ======= ======================================
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parameter type default description
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Value
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====================== ====== ======= ======================================
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``free_used_percent`` Number 10.0 a rational number, which describes the
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the quotient of
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min_free_hosts_num/nodes_with_VMs_num
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``min_free_hosts_num`` Int 1 an int number describes minimum free
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compute nodes
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====================== ====== ======= ======================================
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Efficacy Indicator
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------------------
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None
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Algorithm
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---------
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For more information on the Energy Saving Strategy please refer to:
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http://specs.openstack.org/openstack/watcher-specs/specs/pike/implemented/energy-saving-strategy.html
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How to use it ?
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---------------
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step1: Add compute nodes info into ironic node management
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.. code-block:: shell
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$ ironic node-create -d pxe_ipmitool -i ipmi_address=10.43.200.184 \
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ipmi_username=root -i ipmi_password=nomoresecret -e compute_node_id=3
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step 2: Create audit to do optimization
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.. code-block:: shell
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$ openstack optimize audittemplate create \
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at1 saving_energy --strategy saving_energy
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$ openstack optimize audit create -a at1 \
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-p free_used_percent=20.0
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External Links
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--------------
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None
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