groups:

- name: DabealuZookeeperExporter

  
  rules:

    # 1m delay allows a restart without triggering an alert.
    - alert: ZookeeperDown
      expr: 'zk_up == 0'
      for: 1m
      labels:
        severity: critical
      annotations:
        summary: Zookeeper Down (instance {{ $labels.instance }})
        description: "Zookeeper down on instance {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: ZookeeperMissingLeader
      expr: 'sum(zk_server_leader) == 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Zookeeper missing leader (instance {{ $labels.instance }})
        description: "Zookeeper cluster has no node marked as leader\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: ZookeeperTooManyLeaders
      expr: 'sum(zk_server_leader) > 1'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Zookeeper Too Many Leaders (instance {{ $labels.instance }})
        description: "Zookeeper cluster has {{ $value }} nodes marked as leader (expected 1), indicating a split-brain\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: ZookeeperNotOk
      expr: 'zk_ruok == 0'
      for: 3m
      labels:
        severity: warning
      annotations:
        summary: Zookeeper Not Ok (instance {{ $labels.instance }})
        description: "Zookeeper instance {{ $labels.instance }} is not ok (ruok check failed)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"