xuesong172500 opened a new issue #7815:
URL: https://github.com/apache/pulsar/issues/7815


   **Describe the bug**
   functions-worker process model:
   1.After the functions worker is started, if you do not create function, you 
cannot get any JVM metrics information.
   2.The indicators of functions worker shown in the JVM metrics dashboard are 
not correct. It should be the indicators collected by functions worker. The in 
heap memory is set to 4G. However, the maximum in heap memory of functions 
worker shown in the dashboard is always 1g.
   
   functions-worker thread model:
   1.After the functions worker is started, if you don't create function, you 
can't get any metrics information.
   2.After create function, only the functions runtime processed metrics 
information, but no functions worker JVM metrics information.
   
   pulsar 2.5.2
   
![image](https://user-images.githubusercontent.com/54351417/90207776-b4f93100-de19-11ea-96d0-dfd0fd326444.png)
   
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. Go to '...'
   2. Click on '....'
   3. Scroll down to '....'
   4. See error
   
   **Expected behavior**
   A clear and concise description of what you expected to happen.
   
   **Screenshots**
   If applicable, add screenshots to help explain your problem.
   
   **Desktop (please complete the following information):**
    - OS: [e.g. iOS]
   
   **Additional context**
   Add any other context about the problem here.
   


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