alertmanager告警恢复

告警恢复的配置如下：

receivers:
  - name: 'webhook'
    webhook_configs:
    - url: 'http://127.0.0.1:5000/webhook'
      send_resolved: true  # 这一行就是告警恢复的配置

　　

在发生告警之后，处理完告警，多久能发送恢复的消息呢？经过测试，发现和这个参数有关

route:
  group_by: ['alertname']
  group_wait: 5s
  group_interval: 5m
  repeat_interval: 1h
  receiver: 'webhook'
  routes:   #路由配置

  - match:
      department: md
      business: qh
      type: server
    group_wait: 1m
    group_interval: 1m   # 这里配置1分钟，发送告警恢复的间隔就是1分钟
    repeat_interval: 4h
    receiver: webhook
    group_by: ['alertname']