红帽全球峰会第 5 章 collectd 插件
您可以根据 Red Hat OpenStack Platform (RHOSP) 17.0 环境配置多个 collectd 插件。
以下插件列表显示了可设置为覆盖默认值的可用 heat 模板 ExtraConfig 参数。每个部分都提供了 ExtraConfig 选项的一般配置名称。例如，如果存在名为 example_plugin 的 collectd 插件，则插件标题的格式是 collectd::plugin::example_plugin。
请参考特定插件的可用参数表，如下例所示：
ExtraConfig: collectd::plugin::example_plugin::<parameter>: <value>
ExtraConfig:
collectd::plugin::example_plugin::<parameter>: <value>引用用于 Prometheus 或 Grafana 查询的特定插件的指标表。
5.1. collectd::plugin::aggregation
您可以使用 聚合 插件将多个值聚合到一个值中。使用 sum、average、min 和 max 等聚合功能来计算指标，如平均和总 CPU 统计。
| 参数 | 类型 |
|---|---|
| 主机 | 字符串 |
| plugin | 字符串 |
| plugininstance | 整数 |
| agg_type | 字符串 |
| typeinstance | 字符串 |
| sethost | 字符串 |
| setplugin | 字符串 |
| setplugininstance | 整数 |
| settypeinstance | 字符串 |
| groupBy | 字符串数组 |
| calculatesum | 布尔值 |
| calculatenum | 布尔值 |
| calculateaverage | 布尔值 |
| calculateminimum | 布尔值 |
| calculatemaximum | 布尔值 |
| calculatestddev | 布尔值 |
配置示例：
部署三个聚合配置以创建以下文件：
-
aggregator-calcCpuLoadAvg.conf：按主机和状态分组的所有 CPU 内核的平均 CPU 负载 -
aggregator-calcCpuLoadMinMax.conf：按主机和状态的最小和最大 CPU 负载组 -
Aggregator-calcMemoryTotalMaxAvg.conf: maximum, average, 和 total 用于按类型分组的内存
聚合配置使用默认的 cpu 和 memory 插件配置。
parameter_defaults:
CollectdExtraPlugins:
- aggregation
ExtraConfig:
collectd::plugin::aggregation::aggregators:
calcCpuLoadAvg:
plugin: "cpu"
agg_type: "cpu"
groupby:
- "Host"
- "TypeInstance"
calculateaverage: True
calcCpuLoadMinMax:
plugin: "cpu"
agg_type: "cpu"
groupby:
- "Host"
- "TypeInstance"
calculatemaximum: True
calculateminimum: True
calcMemoryTotalMaxAvg:
plugin: "memory"
agg_type: "memory"
groupby:
- "TypeInstance"
calculatemaximum: True
calculateaverage: True
calculatesum: True
parameter_defaults:
CollectdExtraPlugins:
- aggregation
ExtraConfig:
collectd::plugin::aggregation::aggregators:
calcCpuLoadAvg:
plugin: "cpu"
agg_type: "cpu"
groupby:
- "Host"
- "TypeInstance"
calculateaverage: True
calcCpuLoadMinMax:
plugin: "cpu"
agg_type: "cpu"
groupby:
- "Host"
- "TypeInstance"
calculatemaximum: True
calculateminimum: True
calcMemoryTotalMaxAvg:
plugin: "memory"
agg_type: "memory"
groupby:
- "TypeInstance"
calculatemaximum: True
calculateaverage: True
calculatesum: True
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