Function Compute:How to prevent zombie processes in custom runtimes?

Possible causes

Zombie processes may be generated due to code errors.

Solutions

If you select Web Function and configure Startup Command when you create a function, the process whose process ID (PID) is 1 in the system is the startup command. Therefore, you need to configure a startup command that has the ability to recycle zombie processes.

• You can use Bash scripts to start programs. Bash processes have the abilities to recycle zombie processes. For example, you can configure Startup Command as /code/start.sh. The following code snippet shows the content of start.sh.

  #!  /bin/bash
  python /code/app.py 

• If you use Serverless Devs or call an API operation, you can name the startup script as bootstrap and leave Startup Command unspecified. In a function that does not have Startup Command configured, Function Compute attempts to start the function by using the /code/bootstrap script.