groups:
- name: memcached
  rules:
  - alert: MemcachedDown
    annotations:
      description: Memcached instance {{ $labels.job }} / {{ $labels.instance }} is
        down for more than 15 minutes.
      summary: Memcached instance is down.
    expr: |
      memcached_up == 0
    for: 15m
    labels:
      severity: critical
  - alert: MemcachedConnectionLimitApproaching
    annotations:
      description: Memcached instance {{ $labels.job }} / {{ $labels.instance }} connection
        usage is at {{ printf "%0.0f" $value }}% for at least 15 minutes.
      summary: Memcached max connection limit is approaching.
    expr: |
      (memcached_current_connections / memcached_max_connections * 100) > 80
    for: 15m
    labels:
      severity: warning
  - alert: MemcachedConnectionLimitApproaching
    annotations:
      description: Memcached instance {{ $labels.job }} / {{ $labels.instance }} connection
        usage is at {{ printf "%0.0f" $value }}% for at least 15 minutes.
      summary: Memcached connections at critical level.
    expr: |
      (memcached_current_connections / memcached_max_connections * 100) > 95
    for: 15m
    labels:
      severity: critical