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|
#!/usr/bin/env python3
# Owner(s): ["oncall: distributed"]
import json
import os
import pickle
import socket
import tempfile
from contextlib import contextmanager
from typing import Dict
from urllib3.connection import HTTPConnection
from urllib3.connectionpool import HTTPConnectionPool
from torch.distributed.elastic.control_plane import (
TORCH_WORKER_SERVER_SOCKET,
worker_main,
)
from torch.testing._internal.common_utils import requires_cuda, run_tests, TestCase
class UnixHTTPConnection(HTTPConnection):
def __init__(self, socket_path: str) -> None:
super().__init__("localhost")
self.socket_path = socket_path
def connect(self) -> None:
self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self.sock.connect(self.socket_path)
class UnixHTTPConnectionPool(HTTPConnectionPool):
def __init__(self, socket_path: str) -> None:
super().__init__("localhost")
self.socket_path = socket_path
def _new_conn(self):
return UnixHTTPConnection(self.socket_path)
@contextmanager
def local_worker_server() -> None:
with tempfile.TemporaryDirectory() as tmpdir:
socket_path = os.path.join(tmpdir, "socket.sock")
os.environ[TORCH_WORKER_SERVER_SOCKET] = socket_path
with worker_main():
pool = UnixHTTPConnectionPool(socket_path)
yield pool
class WorkerServerTest(TestCase):
def test_worker_server(self) -> None:
with local_worker_server() as pool:
resp = pool.request("GET", "/")
self.assertEqual(resp.status, 200)
self.assertEqual(
resp.data,
b"""<h1>torch.distributed.WorkerServer</h1>
<a href="/handler/">Handler names</a>
""",
)
resp = pool.request("POST", "/handler/ping")
self.assertEqual(resp.status, 200)
self.assertEqual(resp.data, b"pong")
resp = pool.request("GET", "/handler/")
self.assertEqual(resp.status, 200)
self.assertIn("ping", json.loads(resp.data))
resp = pool.request("POST", "/handler/nonexistant")
self.assertEqual(resp.status, 404)
self.assertIn(b"Handler nonexistant not found:", resp.data)
@requires_cuda
def test_dump_nccl_trace_pickle(self) -> None:
with local_worker_server() as pool:
resp = pool.request("POST", "/handler/dump_nccl_trace_pickle")
self.assertEqual(resp.status, 200)
out = pickle.loads(resp.data)
self.assertIsInstance(out, dict)
self.assertIn("version", out)
@requires_cuda
def test_dump_nccl_trace_pickle_with_params(self) -> None:
with local_worker_server() as pool:
# bad key - not lower case
resp = pool.request(
"POST", "/handler/dump_nccl_trace_pickle?includeCollectives=true"
)
self.assertEqual(resp.status, 400)
# unknown key
resp = pool.request(
"POST", "/handler/dump_nccl_trace_pickle?unknownkey=true"
)
self.assertEqual(resp.status, 400)
# bad value - not a bool
resp = pool.request(
"POST", "/handler/dump_nccl_trace_pickle?includecollectives=notabool"
)
self.assertEqual(resp.status, 400)
# bad value - value not lowercase
resp = pool.request(
"POST", "/handler/dump_nccl_trace_pickle?includecollectives=True"
)
self.assertEqual(resp.status, 400)
# good key and value
resp = pool.request(
"POST", "/handler/dump_nccl_trace_pickle?includecollectives=true"
)
self.assertEqual(resp.status, 200)
# multiple good keys and values
resp = pool.request(
"POST",
"/handler/dump_nccl_trace_pickle?includecollectives=true&includestacktraces=false&onlyactive=true",
)
self.assertEqual(resp.status, 200)
@requires_cuda
def test_dump_nccl_trace_pickle_with_json(self) -> None:
with local_worker_server() as pool:
# bad key - not lower case
resp = pool.request(
"POST", "/handler/dump_nccl_trace_json?includeCollectives=true"
)
self.assertEqual(resp.status, 400)
# unknown key
resp = pool.request("POST", "/handler/dump_nccl_trace_json?unknownkey=true")
self.assertEqual(resp.status, 400)
# bad value - not a bool
resp = pool.request(
"POST", "/handler/dump_nccl_trace_json?includecollectives=notabool"
)
self.assertEqual(resp.status, 400)
# bad value - value not lowercase
resp = pool.request(
"POST", "/handler/dump_nccl_trace_json?includecollectives=True"
)
self.assertEqual(resp.status, 400)
# good key and value
resp = pool.request(
"POST", "/handler/dump_nccl_trace_json?includecollectives=true"
)
self.assertEqual(resp.status, 200)
# multiple good keys and values
resp = pool.request(
"POST",
"/handler/dump_nccl_trace_json?includecollectives=true&onlyactive=true",
)
self.assertEqual(resp.status, 200)
def test_tcp(self) -> None:
import requests
from torch._C._distributed_c10d import _WorkerServer
server = _WorkerServer("", 1234)
out = requests.get("http://localhost:1234/handler/")
self.assertEqual(out.status_code, 200)
server.shutdown()
def test_dump_traceback(self) -> None:
with local_worker_server() as pool:
resp = pool.request("POST", "/handler/dump_traceback")
self.assertEqual(resp.status, 200)
self.assertIn(b"in test_dump_traceback\n", resp.data)
def test_run_handler(self) -> None:
from torch._C._distributed_c10d import _get_handler, _Request, _Response
handler = _get_handler("ping")
class Request(_Request):
def __init__(self) -> None:
_Request.__init__(self)
def body(self) -> bytes:
return b"dummy"
def params(self) -> Dict[str, str]:
return {}
class Response(_Response):
def __init__(self) -> None:
_Response.__init__(self)
def set_content(self, content: str, content_type: str) -> None:
self.content = content
self.content_type = content_type
def set_status(self, status: int) -> None:
self.status = status
req = Request()
resp = Response()
handler(req, resp)
self.assertEqual(resp.status, 200)
self.assertEqual(resp.content, "pong")
self.assertEqual(resp.content_type, "text/plain")
def test_get_handler_nonexistant(self) -> None:
from torch._C._distributed_c10d import _get_handler
with self.assertRaisesRegex(ValueError, "Failed to find handler nonexistant"):
_get_handler("nonexistant")
def test_get_handler_names(self) -> None:
from torch._C._distributed_c10d import _get_handler_names
names = _get_handler_names()
self.assertIn("ping", names)
if __name__ == "__main__":
run_tests()
|
