红帽全球峰会46.5. 消费者标头
消费者在 Exchange 消息中保存多个作业标头：
| 属性 | 类型 | 描述 |
|---|---|---|
| beanstalk.jobId | long | 作业 ID |
| beanstalk.tube | 字符串 | 包含此作业的 tube 的名称 |
| beanstalk.state | 字符串 | "ready"或 "delayed" 或 "reserved" 或 "buried" （必须为 "reserved"） |
| beanstalk.priority | long | 设置的优先级值 |
| beanstalk.age | int | 创建此作业的 put 命令后的时间（以秒为单位） |
| beanstalk.time-left | int | 服务器将该作业放入就绪队列前的秒数 |
| beanstalk.timeouts | int | 此作业在保留期间超时的次数 |
| beanstalk.releases | int | 客户端从保留中释放此作业的次数 |
| beanstalk.buries | int | 此任务已计算的次数 |
| beanstalk.kicks | int | 该作业启动的次数 |
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