[Bug] When using gunicorn to start the service, subprocess.Popen executes the shell, and the python app-py file gets stuck and timeout occurs when running in the shell

[yeqiangdu]

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• I had searched in the issues and found no similar issues.

Apache SkyWalking Component

Python Agent (apache/skywalking-python)

What happened

When using gunicorn to start the service, subprocess.Popen executes the shell, and the python app-py file gets stuck and timeout occurs when running in the shell

def run_shell_and_wait(cmd: str, wait_time=None):
print(f"Running command: {cmd}")
process = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
print(f"Waiting for command to finish with timeout: {wait_time}")
exit_code = process.wait(timeout=wait_time)
print(f"Command finished with exit code: {exit_code}")
return exit_code

!#/bin/sh
echo "Running tests..."
python $1
echo "Done."

What you expected to happen

import subprocess
from flask import Flask, request, jsonify

import pydevd_pycharm

pydevd_pycharm.settrace('localhost', port=5678, stdout_to_server=True, stderr_to_server=True)

app = Flask(name)

def run_shell_and_wait(cmd: str, wait_time=None):
print(f"Running command: {cmd}")
process = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
print(f"Waiting for command to finish with timeout: {wait_time}")
exit_code = process.wait(timeout=wait_time)
print(f"Command finished with exit code: {exit_code}")
return exit_code

@app.route('/run-shell')
def run_shell_command():
cmd = request.args.get('command')
timeout = request.args.get('timeout', None, type=int)

if not cmd:
    return jsonify({"error": "Missing 'command' parameter"}), 400

try:
    exit_code = run_shell_and_wait(cmd, timeout)
    return jsonify({
        "status": "completed",
        "exit_code": exit_code,
        "message": f"Command executed with exit code {exit_code}"
    })
except Exception as e:
    return jsonify({"error": str(e)}), 500

@app.route('/health')
def health_check():
return jsonify({"status": "healthy"}), 200

if name == 'main':
app.run(host='0.0.0.0', port=8000, debug=True)

How to reproduce

sw-python run -p gunicorn -w 1 -b 0.0.0.0:8000 wsgi:app

http://localhost:8000/run-shell?command=sh%20test.sh%20test.py

Anything else

No response

Are you willing to submit a pull request to fix on your own?

• Yes I am willing to submit a pull request on my own!

Code of Conduct

• I agree to follow this project's Code of Conduct