For example, when I needed to match multiple metrics using the common labels, I quickly found myself reading the code implementing binary operations on vectors. Without a solid understanding of the matching rules, I constantly stumbled upon various query execution errors, such as complaints about ...
Flexible and powerful query statement (PromQL): One query statement supports addition, multiplication, and connection for multiple metrics. Easy to manage: The Prometheus server is a separate binary file that can work locally. It does not depend on distributed storage. ...
HPA默认支持基于CPU和内存指标实现自动伸缩,可能无法满足更为复杂的运维场景。如果您需要将Prometheus收集的Custom Metrics与External Metrics转换为HPA可用的弹性伸缩指标,您可以参见本文获取监控数据并实现对应的伸缩配置,为应用提供更灵活、便捷的扩缩机制。 前提条件 已部署阿里云Prometheus监控组件。具体操...
1. a multi-dimensional data model with time series data identified by metric nameandkey/value pairs2. a flexible query language to leverage this dimensionality3. no reliance on distributed storage; single server nodes are autonomous4. time series collection happens via a pull model over HTTP5. ...
metric有Counter、Gauge、Histogram和Summary四种类型。在指标生成端,也就是应用程序中,调用prometheus的sdk创建metrics的时候,必须要明确是哪一种类型的metrics。 见:使用Prometheus SDK输出Prometheus格式的Metrics Counter是累计数值,只能增加或者在重启时被归零。
The features that distinguish Prometheus from other metrics and monitoring systems are: Amulti-dimensionaldata model (time series defined by metric name and set of key/value dimensions) PromQL, apowerful and flexible query languageto leverage this dimensionality ...
For instance,varnish_main_client_req{namespace=~".*3.*",namespace!~".*env4.*"}will return allvarnish_main_client_reqmetrics with a 3 in their namespace that don’t also containenv4. Range Selectors By appending arange durationto a query, we get multiple values for each timestamp. Thi...
## config for the multiple Redis targets that the exporter will scrape - job_name: "redis_exporter_targets" scrape_interval: 5s static_configs: - targets: - redis://192.168.9.140:6379 - redis://192.168.9.140:7001 - redis://192.168.9.140:7004 metrics_path: /scrape relabel_configs: - sour...
*/Helpstring// ConstLabels are used to attach fixed labels to this metric. Metrics// with the same fully-qualified name must have the same label names in// their ConstLabels./// ConstLabels are only used rarely. In particular, do not use them to// attach the same labels to all...
1. A metric is involved, but the metric has multiple shards 2. Involving multiple metrics and different shards Single metric and multiple shards For a single metric multi-shard query, if the query filter condition carries fragment tags, then it can naturally correspond to a fragment, for exampl...