105 lines
2.9 KiB
ReStructuredText
105 lines
2.9 KiB
ReStructuredText
=================================
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Outlet Temperature Based Strategy
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=================================
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Synopsis
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--------
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**display name**: ``Outlet temperature based strategy``
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**goal**: ``thermal_optimization``
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Outlet (Exhaust Air) temperature is a new thermal telemetry which can be
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used to measure the host's thermal/workload status. This strategy makes
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decisions to migrate workloads to the hosts with good thermal condition
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(lowest outlet temperature) when the outlet temperature of source hosts
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reach a configurable threshold.
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Requirements
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------------
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This strategy has a dependency on the host having Intel's Power
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Node Manager 3.0 or later enabled.
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Metrics
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*******
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The *outlet_temperature* strategy requires the following metrics:
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========================================= ============ ======= =======
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metric service name plugins comment
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========================================= ============ ======= =======
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``hardware.ipmi.node.outlet_temperature`` ceilometer_ IPMI
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========================================= ============ ======= =======
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.. _ceilometer: https://docs.openstack.org/ceilometer/latest/admin/telemetry-measurements.html#ipmi-based-meters
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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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Default Watcher's actions:
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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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* - ``migration``
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- .. watcher-term:: watcher.applier.actions.migration.Migrate
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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 Value description
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============== ====== ============= ====================================
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``threshold`` Number 35.0 Temperature threshold for migration
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``period`` Number 30 The time interval in seconds for
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getting statistic aggregation from
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metric data source
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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 Outlet Temperature Based Strategy please refer to:
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https://specs.openstack.org/openstack/watcher-specs/specs/mitaka/implemented/outlet-temperature-based-strategy.html
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How to use it ?
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---------------
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.. code-block:: shell
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$ openstack optimize audittemplate create \
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at1 thermal_optimization --strategy outlet_temperature
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$ openstack optimize audit create -a at1 -p threshold=31.0
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External Links
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--------------
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- `Intel Power Node Manager 3.0 <http://www.intel.com/content/www/us/en/power-management/intelligent-power-node-manager-3-0-specification.html>`_
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