Prometheus 设置 scrape_interval 特定于 http_sd_config 中的目标

Question

我正在使用 Prometheus http service discovery to add targets dynamically, But it looks like I can only add labels and targets URLs <static_config>。我想知道有没有办法为每个目标指定 scrape_interval？

如果我手动将目标添加到 Prometheus 配置文件中，我可以做到这一点。

global:
  scrape_interval:     15s # By default, scrape targets every 15 seconds.

  scrape_configs:
  - job_name: 'target-1'
    # Override the global default and scrape targets from this job every 5 seconds.
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9090']

  - job_name: 'target-2'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:1010']

Answer 1

我从普罗米修斯 GitHub 讨论中得到了答案。

使用 http_sd_config 您可以为每个目标设置抓取间隔：

[
    {
        "targets": ["10.0.40.3:9100"],
        "labels": {
            "__meta_datacenter": "london",
            "__scrape_interval__": "1m",
            "__scrape_timeout__": "5m"
        }
    },
    {
        "targets": ["10.0.40.1:9100"],
        "labels": {
            "__meta_datacenter": "london",
            "__scrape_interval__": "1m",
            "__scrape_timeout__": "5m"
        }
    }
]

但也要注意这些标签是实验性的，可能会在未来的版本中发生变化。

来自 Prometheus 文档。

The scrape_interval and scrape_timeout labels are set to the target's interval and timeout. This is experimental and could change in the future.

Prometheus 设置 scrape_interval 特定于 http_sd_config 中的目标

Prometheus setting scrape_interval specific to target in http_sd_config

prometheus