请问flink 如何监听任何job失败则告警并输出jobid？

要监听Flink多个job的失败并输出jobid，你可以使用Flink的Metrics系统和Prometheus的Alertmanager配合实现。以下是一个基本的步骤： a. 确保你的Flink作业暴露了必要的metrics，例如flink_job_status和flink_task_manager_num_failed_tasks等。 b. 在Prometheus配置文件中，设置一个抓取目标来获取Flink作业的metrics，例如：

- job_name: 'flink_jobs'
  static_configs:
    - targets: ['flink-jobmanager:9249']  # 替换为你的Flink JobManager的实际地址和端口
c. 创建一个Prometheus规则文件，定义一个alert规则来监控job状态和失败任务数，如下所示：
yaml
groups:
- name: flink_job_alerts
  rules:
  - alert: FlinkJobFailed
    expr: sum(flink_job_status{status="FAILED"}) by (job_id) > 0
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: Flink Job {{ $labels.job_id }} has failed
      description: Flink job {{ $labels.job_id }} has entered a FAILED state.

  - alert: FlinkTaskFailure
    expr: sum(flink_task_manager_num_failed_tasks) by (job_id) > 0
    for: 1m
    labels:
      severity: warning
    annotations:
      summary: Flink Job {{ $labels.job_id }} has failed tasks
      description: Flink job {{ $labels.job_id }} has failed tasks, please check the job status.

d. 配置Alertmanager来接收这些告警，并根据需要设置通知方式（如邮件、短信、 Slack 等）。

要监听任何Flink job失败并输出jobid，可以使用Prometheus的Alertmanager和告警规则。具体步骤如下：

1. 在Prometheus配置文件中添加PushGateway地址：

   scrape_configs:
   - job_name: 'flink'
    static_configs:
    - targets: ['<pushgateway-address>']
   

2. 在Alertmanager配置文件中添加告警规则：
   ```
   groups:

• name: flink_alerts
  rules:
  • alert: FlinkJobFailure
    expr: flink_job_failure_total{status="failed"} > 0
    for: 1m
    labels:
    severity: critical
    annotations:
    summary: "Flink Job failed"
    description: "{{$labels.instance}} of job {{$labels.job_name}} has failed."
    ```

1. 在Alertmanager配置文件中添加接收器（例如email或Slack）：
   ```
   receivers:

• name: 'email'
  email_configs:
  • to: ''
    from: ''
    smarthost: ':'
    auth_username: ''
    auth_password: ''
    ```

1. 重启Prometheus和Alertmanager服务。
2. 如果有任何Flink job失败，Alertmanager将发送一封电子邮件或Slack消息，其中包含失败的jobid。