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# Owner(s): ["oncall: r2p"]
# Copyright (c) Facebook, Inc. and its affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
import os
import unittest
import etcd
from torch.distributed.elastic.rendezvous.etcd_rendezvous import (
EtcdRendezvous,
EtcdRendezvousHandler,
)
from torch.distributed.elastic.rendezvous.etcd_server import EtcdServer
if os.getenv("CIRCLECI"):
print("T85992919 temporarily disabling in circle ci", file=sys.stderr)
sys.exit(0)
class EtcdServerTest(unittest.TestCase):
def test_etcd_server_start_stop(self):
server = EtcdServer()
server.start()
try:
port = server.get_port()
host = server.get_host()
self.assertGreater(port, 0)
self.assertEqual("localhost", host)
self.assertEqual(f"{host}:{port}", server.get_endpoint())
self.assertIsNotNone(server.get_client().version)
finally:
server.stop()
def test_etcd_server_with_rendezvous(self):
server = EtcdServer()
server.start()
client = etcd.Client(server.get_host(), server.get_port())
rdzv = EtcdRendezvous(
client=client,
prefix="test",
run_id=1,
num_min_workers=1,
num_max_workers=1,
timeout=60,
last_call_timeout=30,
)
rdzv_handler = EtcdRendezvousHandler(rdzv)
store, rank, world_size = rdzv_handler.next_rendezvous()
self.assertIsNotNone(store)
self.assertEqual(0, rank)
self.assertEqual(1, world_size)
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