Prometheus 没有显示 eclipse java 服务器为 up

Question

我正在尝试使用 prometheus，为此这是我的 proetheus.yml 文件

# my global config
global:
  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

  # Attach these labels to any time series or alerts when communicating with
  # external systems (federation, remote storage, Alertmanager).
  external_labels:
      monitor: 'codelab-monitor'

# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
  # - "first.rules"
  # - "second.rules"

# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: 'my_job'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
      - targets: ['localhost:8080']

# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: 'node'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
      - targets: ['localhost:9100']

我启动在端口 9100 上运行的 node_exporter 服务以及我在 eclipse 中的 java 服务器。但是普罗米修斯说节点作业已启动（1），而 my_job 未启动（0）。为什么会发生这种情况？任何帮助，将不胜感激。谢谢！！

Answer 1

您的 Java 服务器是否在该端口上生成了有效的 /metrics？这是一个设置指南：https://www.robustperception.io/instrumenting-java-with-prometheus/