No data in metric browser

[Ramesh.Natarajan]

Hello, I have a free version of the machine agent running on CentOS configured with the SaaS version of the cloud controller. The agent starts and connects to the controller. I also see the server listed on the controller. However, I don't any metrics visible under the Metric Browser. Can you help me troubleshoot this

Machine agent version: 20.10.0.2813

CentOS 7.8

Controller: https://[Redacted].saas.appdynamics.com/ 

Here is some observation that may / may not be related. I will provide config/logs if required.

1) When I reload the controller, sometimes, I see "500 Internal Server Error" reported.

2) I see this in the machine-agent.log

[ExtensionStarter-DockerMonitoring] 04 Nov 2020 14:39:29,269 ERROR CGroupFileSystemRootProvider - Could not find CGroup files in following path(s) : [/sys/fs/cgroup, /cgroup]

3) I see this in analytics-agent.log

[2020-11-04T14:54:02,464Z] [ERROR] [analytics-agent-sync-thread-0] [c.a.a.agent.sync.ErrorMessageHelper] Analytics agent failed to connect to the controller registration endpoint. This can happen when the connection is refused remotely, or when there is no process listening on the remote address/port. Please check to see if the controller address is configured correctly and is running.

4) I have server-monitoring disabled, I wasn't able to get the agent started with this enabled.

( <sim-enabled>false</sim-enabled> in controller-info.xml)

Thanks

nram

^ Edited by @Ryan.Paredez to redact Controller URL. Please do not share Controller URLs on Community posts for security and privacy reasons.

[Ryan.Paredez]

Hi @Ramesh.Natarajan,

Have you checked out this KB article Why is there no data in the Metric Browser? 

Please let me know if that provided any help. 

[Ramesh.Natarajan]

Thanks, Ryan for looking into this. How does one access this folder on SaaS (cloud) instance? 

<controller_home>/logs

Copying Tim.Gillin & @Krishna Rathnam.Desikan 

 Thanks, Nram

^ Edited by @Ryan.Paredez to redact emails. Please do not share your or other's email address on community posts for security and privacy reasons.

[Ryan.Paredez]

Hi @Ramesh.Natarajan,

I reached out to @Krishna Rathnam.Desikan  and they have suggested creating a support ticket for this question.

You can do this by going to appdynamics.com/Support

If you do contact support, can you please share the results of the ticket back on this thread as a reply? This will help drive knowledge sharing in the community.

[Ramesh.Natarajan]

Sure @Ryan.Paredez . Will report back here when issue is resolved. Thanks.

[Ramesh.Natarajan · Accepted solution]

Based on the following link, I had to add some additional tags in the controller config.  Krishna pointed out that this is required for standalone controller configuration.

https://docs.appdynamics.com/display/PRO44/Standalone+Machine+Agent+Configuration+Property+Reference

I added the following to my controller-info.xml and that resolved.

   <application-name>myapp</application-name>
   <node-name>mynode</node-name>
   <tier-name>mytier</tier-name>

Thanks Krishna and Ryan for the help.