1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
======================
Saving Energy Strategy
======================
Synopsis
--------
**display name**: ``Saving Energy Strategy``
**goal**: ``saving_energy``
.. watcher-term:: watcher.decision_engine.strategy.strategies.saving_energy.SavingEnergy
Requirements
------------
This feature will use Ironic to do the power on/off actions, therefore
this feature requires that the ironic component is configured.
And the compute node should be managed by Ironic.
Ironic installation: https://docs.openstack.org/ironic/latest/install/index.html
Cluster data model
******************
Default Watcher's Compute cluster data model:
.. watcher-term:: watcher.decision_engine.model.collector.nova.NovaClusterDataModelCollector
Actions
*******
.. list-table::
:widths: 30 30
:header-rows: 1
* - action
- description
* - ``change_node_power_state``
- .. watcher-term:: watcher.applier.actions.change_node_power_state.ChangeNodePowerState
Planner
*******
Default Watcher's planner:
.. watcher-term:: watcher.decision_engine.planner.weight.WeightPlanner
Configuration
-------------
Strategy parameter is:
====================== ====== ======= ======================================
parameter type default description
Value
====================== ====== ======= ======================================
``free_used_percent`` Number 10.0 a rational number, which describes the
the quotient of
min_free_hosts_num/nodes_with_VMs_num
``min_free_hosts_num`` Int 1 an int number describes minimum free
compute nodes
====================== ====== ======= ======================================
Efficacy Indicator
------------------
None
Algorithm
---------
For more information on the Energy Saving Strategy please refer to:
http://specs.openstack.org/openstack/watcher-specs/specs/pike/implemented/energy-saving-strategy.html
How to use it ?
---------------
step1: Add compute nodes info into ironic node management
.. code-block:: shell
$ ironic node-create -d pxe_ipmitool -i ipmi_address=10.43.200.184 \
ipmi_username=root -i ipmi_password=nomoresecret -e compute_node_id=3
step 2: Create audit to do optimization
.. code-block:: shell
$ openstack optimize audittemplate create \
saving_energy_template1 saving_energy --strategy saving_energy
$ openstack optimize audit create -a saving_energy_audit1 \
-p free_used_percent=20.0
External Links
--------------
None
|
