INSPECTOR worker may handle HTTP request unexpectly when `Sanic.start_method="fork"` and `INSPECTOR=True`
LCBHSStudent opened this issue · comments
Is there an existing issue for this?
- I have searched the existing issues
Describe the bug
When I set Sanic's start_method
to fork
and enable INSPECTOR
, the HTTP requests I send may unexpectedly be processed by the INSPECTOR
worker process.
Could this be because the webserver socket inherited from the parent process is not closed when forking the child process?
If there are any suggestions, or if this behavior is expected, please let me know. Thank you to all the excellent library developers.
Code snippet
test server code:
from sanic import Sanic, Request, HTTPResponse, json
import os
Sanic.start_method = "fork"
app = Sanic("test-fork-with-inspector", inspector=True)
@app.get("/test")
async def test_handler(_: Request) -> HTTPResponse:
return json(body={"pid": os.getpid()})
running server and sending HTTP request:
python -m sanic test_fork_with_inspector:app --worker=1 --host=127.0.0.1 --port=8080
curl -X GET http://localhost:8080/test
{"pid":1199437} # inspector worker
curl -X GET http://localhost:8080/test
{"pid":1199435} # nomal worker
Socket fd of inspector worker:
lsof -p 1199437 | grep LISTEN
python 1199437 user 12u IPv4 24318245 0t0 TCP localhost:http-alt (LISTEN)
python 1199437 user 15u IPv4 24311762 0t0 TCP localhost:6457 (LISTEN)
Socket fd of normal worker:
lsof -p 1199435 | grep LISTEN
python 1199435 tusen 12u IPv4 24318245 0t0 TCP localhost:http-alt (LISTEN)
Expected Behavior
inspector worker should not handle regular HTTP requests
How do you run Sanic?
Sanic CLI Python3.8.10
Operating System
Ubuntu 20.04
Sanic Version
Sanic 23.12.0; Routing 23.12.0
Additional context
No response