Amazon web services Elastic Beanstalk CloudWatch日志流停止工作–；如何调试

我的Elastic Beanstalk环境正在停止将node.js事件流式传输到CloudWatch日志。在新实例上，流式处理可以正常工作几分钟。查看几分钟后，CloudWatch中不再显示更多日志

我在“配置”>“软件配置”>“CloudWatch日志”>“日志流”（true）下设置了AWS Elastic Beanstalk以将日志流式传输到CloudWatch。我停用了日志流，并作为测试重新激活了它。看看cloudwatch

• 最后一个eb活动日志大约有10分钟
• 错误日志不可用（两个实例都不可用）
• nginx/access.log是一个有秒历史的视图
• nodejs.log大约有一个小时了（重新启动实例后不久）

不过，每次运行状况检查都会在每个视图秒将日志条目写入nodejs.log

我在ec2实例上没有找到任何关于日志流的日志

有人有类似的问题吗

如何将Elastic Beanstalk stream nodejs日志转换为CloudWatch日志

---编辑

当（@andrew ferk）和我激活日志流时，它使用当前日志在CloudWatch中创建了所有日志组和流。在我们再次部署之后，我们注意到日志停止了。这是因为aws散列日志的第一行。如果之前看到过该散列，则会将该文件视为已被处理

如果您使用的是

npm start

，则第一行将是应用程序的名称和版本

您可以在dockerfile中添加一个

CMD date&&npm start

，以每次触发不同的第一行，或在静默模式下运行npm（只要您的第一个输出是唯一的）

此外，根据他们的文档，在启用该功能之前，您应该向elastic beanstalk添加一些策略

---

以下常见问题解答可能会有所帮助：

要检查是否正在流式传输自定义日志文件，请执行以下操作：

eb-ssh

进入实例并查看

/var/log/awslogs.log

。如果这甚至没有提到“从（您的awslogs配置文件）加载其他配置”，请确保正确安装配置文件，并在安装后重新启动awslogs服务（可能使用

.ebextensions

。请参阅“自定义日志文件流”中。有关如何重新启动awslogs服务，请参阅中的

命令

部分

CloudWatch日志代理是有状态的。如果日志文件的前几行为空或从未更改，则可能需要设置

文件\u指纹\u行

。请参阅

---

检查

/var/log/awslogs.log文件中是否存在错误，并确保awslogs服务正常运行running@b.b3rn4rd：找到它，但是此文件从未提及nodejs日志，也没有任何与之相关的问题。您所指的文档中提到了它。我猜您指的是？我试图检查配置，但找不到eb-logs.config或任何其他描述的配置n该页面位于ec2实例的任意位置。在/var/log/awslogs.log中没有错误。而awslogs.log的前两个日志循环（2小时）将nodejs.logs发布到cloudwatch日志中。第三个los文件不再包含任何nodejs日志。没有任何错误。
[ec2-user@ip-###-##-##-## log]$ cat /var/log/awslogs.log 
2017-03-07 11:01:05,928 - cwlogs.push.stream - INFO - 31861 - Thread-1 - Detected file rotation, notifying reader
2017-03-07 11:01:05,928 - cwlogs.push.stream - INFO - 31861 - Thread-1 - Reader is still alive.
2017-03-07 11:01:05,928 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/error.log*'.
2017-03-07 11:01:05,928 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/access.log*'.
2017-03-07 11:01:06,052 - cwlogs.push.reader - INFO - 31861 - Thread-8 - No data is left. Reader is leaving.
2017-03-07 11:01:10,929 - cwlogs.push.stream - INFO - 31861 - Thread-1 - Removing dead reader [2177a5cce5ed29525de329bfdc292ff1, /var/log/nginx/access.log]
2017-03-07 11:01:10,929 - cwlogs.push.stream - INFO - 31861 - Thread-1 - Starting reader for [92257964a10edeb586f084f4f2ba35de, /var/log/nginx/access.log]
2017-03-07 11:01:10,930 - cwlogs.push.reader - INFO - 31861 - Thread-11 - Start reading file from 0.
2017-03-07 11:01:10,930 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/error.log*'.
2017-03-07 11:01:10,930 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/access.log*'.
2017-03-07 11:01:15,931 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/error.log*'.
2017-03-07 11:01:15,931 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/access.log*'.
2017-03-07 11:01:16,788 - cwlogs.push.publisher - INFO - 31861 - Thread-7 - Log group: /aws/elasticbeanstalk/production/var/log/nginx/access.log, log stream: i-0bd24767864801e2c, queue size: 0, Publish batch: {'skipped_events_count': 0, 'first_event': {'timestamp': 1488884470930, 'start_position': 0L, 'end_position': 114L}, 'fallback_events_count': 0, 'last_event': {'timestamp': 1488884472931, 'start_position': 341L, 'end_position': 454L}, 'source_id': '92257964a10edeb586f084f4f2ba35de', 'num_of_events': 4, 'batch_size_in_bytes': 554}
2017-03-07 11:01:20,932 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/error.log*'.
2017-03-07 11:01:20,932 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/access.log*'.
2017-03-07 11:01:25,933 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/error.log*'.
2017-03-07 11:01:25,933 - cwlogs.push.stream - WARNING - 31861 - Thread-1 - No file is found with given path '/var/log/httpd/access.log*'.
2017-03-07 11:01:27,881 - cwlogs.push.publisher - INFO - 31861 - Thread-7 - Log group: /aws/elasticbeanstalk/production/var/log/nginx/access.log, log stream: i-0bd24767864801e2c, queue size: 0, Publish batch: {'skipped_events_count': 0, 'first_event': {'timestamp': 1488884481933, 'start_position': 454L, 'end_position': 568L}, 'fallback_events_count': 0, 'last_event': {'timestamp': 1488884482934, 'start_position': 568L, 'end_position': 681L}, 'source_id': '92257964a10edeb586f084f4f2ba35de', 'num_of_events': 2, 'batch_size_in_bytes': 277}

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "logs:CreateLogGroup",
        "logs:CreateLogStream",
        "logs:GetLogEvents",
        "logs:PutLogEvents",
        "logs:DescribeLogGroups",
        "logs:DescribeLogStreams",
        "logs:PutRetentionPolicy"
      ],
      "Resource": [
        "*"
      ]
    }
  ]
}