prometheus-sql-exporter-的基本使用

我们选用 https://github.com/burningalchemist/sql_exporter，主要是因为稍微活跃些。

下载下来指定的版本，然后开始配置：

主配置文件： sql_exporter.yml

global:
  scrape_timeout: 10s
  scrape_timeout_offset: 500ms
  min_interval: 0s
  max_connections: 3
  max_idle_connections: 3
  max_connection_lifetime: 5m

jobs:
  - job_name: gpu
    collectors: [gpu_count]
    enable_ping: true
    static_configs:
      - targets: 
          pythonapi: 'mysql://readonly:readonly@127.0.0.1:3306/database'

collector_files:
  - "sql_config/*.yml" 
  - "sql_config/*.yaml"

包含的其他的配置文件： sql_config/python_api.yml

collector_name: gpu_count
metrics:
  - metric_name:  gpu_container_total
    type: gauge
    help: 'Total number of records in monitor_gpu_container table'
    values:  [row_count]
    query: |
      SELECT COUNT(*) AS row_count FROM gpu_container;

启停脚本 restart_exporter.sh

#!/bin/bash

EXPORTER_BIN="./sql_exporter"
CONFIG_FILE="./sql_exporter.yml"

pkill -f sql_exporter
sleep 2

nohup $EXPORTER_BIN -config.file=$CONFIG_FILE -web.listen-address=0.0.0.0:9399  > run.log 2>&1 &

echo "Restarted.  port 9399 PID: $!"