90291923a1
Ceilometer removed cpu_util metric in [1]. Another metric compute.node.cpu.percent need to set compute_monitors option to cpu.virt_driver in the nova.conf, we should remind user about these. [1]: https://review.opendev.org/#/c/580709/ Change-Id: I89306ef7c26fa2927945bd4f3ee88b670511d147
2.7 KiB
Workload Balance Migration Strategy
Synopsis
display name:
Workload Balance Migration Strategy
goal: workload_balancing
watcher.decision_engine.strategy.strategies.workload_balance.WorkloadBalance
Requirements
None.
Metrics
The workload_balance strategy requires the following metrics:
| metric | service name | plugins | comment |
|---|---|---|---|
|
none none |
cpu_util has been removed since Stein. |
Cluster data model
Default Watcher's Compute cluster data model:
watcher.decision_engine.model.collector.nova.NovaClusterDataModelCollector
Actions
Default Watcher's actions:
action description migrationwatcher.applier.actions.migration.Migrate
Planner
Default Watcher's planner:
watcher.decision_engine.planner.weight.WeightPlanner
Configuration
Strategy parameters are:
| parameter | type | default Value | description |
|---|---|---|---|
|
String |
'cpu_util' |
Workload balance base on cpu or ram utilization. choice: ['cpu_util', 'memory.resident'] |
threshold |
Number | 25.0 | Workload threshold for migration |
period |
Number | 300 | Aggregate time period of ceilometer |
Efficacy Indicator
None
Algorithm
For more information on the Workload Balance Migration Strategy please refer to: https://specs.openstack.org/openstack/watcher-specs/specs/mitaka/implemented/workload-balance-migration-strategy.html
How to use it ?
$ openstack optimize audittemplate create \
at1 workload_balancing --strategy workload_balance
$ openstack optimize audit create -a at1 -p threshold=26.0 \
-p period=310 -p metrics=cpu_utilExternal Links
None.