我正试图通过CloudWatch Agent将我的本地实例连接到AWS以记录系统指标。从.deb包中安装最新版本，从.deb包中安装夜间版本，结果相同(除了夜间版本通过systemd运行)。
即使对代理和SDK都启用了日志记录，日志中也没有显示任何内容。
通过ctl脚本启动后，它被启动，但实际上服务守护进程不断重新启动;当用service amazon-cloudwatch-agent start启动时，报告失败:
Apr 22 00:20:56 sero1 systemd[1]: Started Amazon CloudWatch Agent.
Apr 22 00:21:02 sero1 start-amazon-cloudwatch-agent[7614]: /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json does not exist or cannot read. Skipping it.
Apr 22 00:21:02 sero1 start-amazon-cloudwatch-agent[7614]: I! Detecting run_as_user...
Apr 22 00:21:02 sero1 start-amazon-cloudwatch-agent[7614]: 2022-04-21T22:21:02Z I! AWS_SDK_LOG_LEVEL is set to "LogDebug"
Apr 22 00:21:02 sero1 start-amazon-cloudwatch-agent[7614]: 2022-04-21T22:21:02Z I! CWAGENT_LOG_LEVEL is set to "DEBUG"
Apr 22 00:25:03 sero1 systemd[1]: amazon-cloudwatch-agent.service: Main process exited, code=exited, status=1/FAILURE
Apr 22 00:25:03 sero1 systemd[1]: amazon-cloudwatch-agent.service: Failed with result 'exit-code'.
在日志文件中有更多的细节:
2022-04-21T22:21:02Z I! Starting AmazonCloudWatchAgent 1.247351.0-10-g2ece109-nightly-build
2022-04-21T22:21:02Z I! AWS SDK log level, LogDebug
2022-04-21T22:21:02Z I! Loaded inputs: net swap cpu disk diskio logfile mem
2022-04-21T22:21:02Z I! Loaded aggregators:
2022-04-21T22:21:02Z I! Loaded processors: delta ec2tagger
2022-04-21T22:21:02Z I! Loaded outputs: cloudwatch cloudwatchlogs
2022-04-21T22:21:02Z I! Tags enabled: host=sero1
2022-04-21T22:21:02Z I! [agent] Config: Interval:1m0s, Quiet:false, Hostname:"sero1", Flush Interval:1s
2022-04-21T22:21:02Z D! [agent] Initializing plugins
2022-04-21T22:21:02Z I! [logagent] starting
2022-04-21T22:21:02Z I! [logagent] found plugin cloudwatchlogs is a log backend
2022-04-21T22:21:02Z I! [logagent] found plugin logfile is a log collection
2022-04-21T22:21:32Z I! CWAGENT_LOG_LEVEL is set to "DEBUG"
2022-04-21T22:21:32Z I! AWS_SDK_LOG_LEVEL is set to "LogDebug"
2022-04-21T22:22:02Z D! Profiler dump:
[no stats is available...]
2022-04-21T22:23:02Z D! Profiler dump:
[no stats is available...]
2022-04-21T22:24:02Z D! Profiler dump:
[no stats is available...]
2022-04-21T22:25:02Z D! Profiler dump:
[no stats is available...]
2022-04-21T22:25:03Z E! [processors.ec2tagger] ec2tagger: Unable to retrieve InstanceId. This plugin must only be used on an EC2 instance
2022-04-21T22:25:03Z E! [telegraf] Error running agent: could not initialize processor ec2tagger: ec2tagger: Unable to retrieve InstanceId. This plugin must only be used on an EC2 instance
2022/04/22 00:26:09 I! 2022/04/22 00:26:03 D! [EC2] Found active network interface
2022/04/22 00:26:09 E! ec2metadata is not available
I! Detected the instance is OnPremise
2022/04/22 00:26:09 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json ...
/opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json does not exist or cannot read. Skipping it.
2022/04/22 00:26:09 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.d/file_amazon-cloudwatch-agent.json ...
2022/04/22 00:26:09 I! Valid Json input schema.
I! Detecting run_as_user...
Got Home directory: /root
I! Set home dir Linux: /root
I! SDKRegionWithCredsMap region: eu-central-1
No csm configuration found.
Under path : /logs/ | Info : Got hostname sero1 as log_stream_name
Configuration validation first phase succeeded
2022/04/22 00:26:09 I! Config has been translated into TOML /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.toml
2022/04/22 00:26:09 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json ...
2022/04/22 00:26:09 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.d/file_amazon-cloudwatch-agent.json ...
2022/04/22 00:26:09 I! Valid Json input schema.
2022/04/22 00:26:09 I! Detected runAsUser: cwagent
2022/04/22 00:26:09 I! Changing ownership of [/opt/aws/amazon-cloudwatch-agent/logs /opt/aws/amazon-cloudwatch-agent/etc /opt/aws/amazon-cloudwatch-agent/var] to 996:996
2022/04/22 00:26:09 I! Set HOME: /home/cwagent
此线路服务终止后。CloudWatch从未报告过任何指标。
我也有同样的错误，在我的情况下，这是因为我设置了"append_dimensions"。(我误读了官方文档，设置了自定义字段和值)
该字段只能包含与EC2元数据相关的值，并且如果配置了该字段，CloudWatch代理将尝试读取处理器。Ec2tagger插件失败
我可以在删除"append_dimensions"后上传我的指标和日志。场。