5 Apache apache_exporter

Lusitaniae/apache_exporter

1. Apache down

Apache down

  - alert: ApacheDown
    expr: apache_up == 0
    for: 0m
    labels:
      severity: critical
    annotations:
      summary: Apache down (instance {{ $labels.instance }})
      description: "Apache down\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

2. Apache workers load

Apache workers in busy state approach the max workers count 80% workers busy on {{ $labels.instance }}

  - alert: ApacheWorkersLoad
    expr: (sum by (instance) (apache_workers{state="busy"}) / sum by (instance) (apache_scoreboard) ) * 100 > 80
    for: 2m
    labels:
      severity: warning
    annotations:
      summary: Apache workers load (instance {{ $labels.instance }})
      description: "Apache workers in busy state approach the max workers count 80% workers busy on {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

3. Apache restart

Apache has just been restarted.

  - alert: ApacheRestart
    expr: apache_uptime_seconds_total / 60 < 1
    for: 0m
    labels:
      severity: warning
    annotations:
      summary: Apache restart (instance {{ $labels.instance }})
      description: "Apache has just been restarted.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"