Files
2026-07-13 13:17:40 +08:00

122 lines
4.7 KiB
Python

import signal
import sys
import pytest
import requests
import ray._private.ray_constants as ray_constants
from ray._common.network_utils import find_free_port
from ray._common.test_utils import wait_for_condition
from ray.tests.conftest import * # noqa: F401 F403
def test_healthz_head(monkeypatch, ray_start_cluster):
dashboard_port = find_free_port()
h = ray_start_cluster.add_node(dashboard_port=dashboard_port)
uri = f"http://localhost:{dashboard_port}/api/gcs_healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
h.all_processes[ray_constants.PROCESS_TYPE_GCS_SERVER][0].process.kill()
# It'll either timeout or just return an error
try:
wait_for_condition(lambda: requests.get(uri, timeout=1) != 200, timeout=4)
except RuntimeError as e:
assert "Read timed out" in str(e)
def test_healthz_agent_1(monkeypatch, ray_start_cluster):
agent_port = find_free_port()
h = ray_start_cluster.add_node(dashboard_agent_listen_port=agent_port)
uri = f"http://{h.node_ip_address}:{agent_port}/api/local_raylet_healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
h.all_processes[ray_constants.PROCESS_TYPE_GCS_SERVER][0].process.kill()
# GCS's failure will not lead to healthz failure
assert requests.get(uri).status_code == 200
@pytest.mark.skipif(sys.platform == "win32", reason="SIGSTOP only on posix")
def test_healthz_agent_2(monkeypatch, ray_start_cluster):
monkeypatch.setenv("RAY_health_check_failure_threshold", "3")
monkeypatch.setenv("RAY_health_check_timeout_ms", "100")
monkeypatch.setenv("RAY_health_check_period_ms", "1000")
monkeypatch.setenv("RAY_health_check_initial_delay_ms", "0")
agent_port = find_free_port()
h = ray_start_cluster.add_node(dashboard_agent_listen_port=agent_port)
uri = f"http://{h.node_ip_address}:{agent_port}/api/local_raylet_healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
h.all_processes[ray_constants.PROCESS_TYPE_RAYLET][0].process.send_signal(
signal.SIGSTOP
)
# GCS still think raylet is alive.
assert requests.get(uri).status_code == 200
# But after heartbeat timeout, it'll think the raylet is down.
wait_for_condition(lambda: requests.get(uri).status_code != 200)
def test_unified_healthz_head(monkeypatch, ray_start_cluster):
agent_port = find_free_port()
h = ray_start_cluster.add_node(dashboard_agent_listen_port=agent_port)
uri = f"http://{h.node_ip_address}:{agent_port}/api/healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
resp = requests.get(uri)
assert "raylet: success" in resp.text
assert "gcs: success" in resp.text
h.all_processes[ray_constants.PROCESS_TYPE_GCS_SERVER][0].process.kill()
wait_for_condition(lambda: requests.get(uri).status_code == 503)
resp = requests.get(uri)
assert "gcs: " in resp.text
assert "gcs: success" not in resp.text
@pytest.mark.skipif(sys.platform == "win32", reason="SIGSTOP only on posix")
def test_unified_healthz_worker(monkeypatch, ray_start_cluster):
monkeypatch.setenv("RAY_health_check_failure_threshold", "3")
monkeypatch.setenv("RAY_health_check_timeout_ms", "100")
monkeypatch.setenv("RAY_health_check_period_ms", "1000")
monkeypatch.setenv("RAY_health_check_initial_delay_ms", "0")
ray_start_cluster.add_node()
agent_port = find_free_port()
h = ray_start_cluster.add_node(dashboard_agent_listen_port=agent_port)
uri = f"http://{h.node_ip_address}:{agent_port}/api/healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
resp = requests.get(uri)
assert "gcs: success (no local gcs)" in resp.text
# Stop local raylet and verify this makes /healthz fail.
h.all_processes[ray_constants.PROCESS_TYPE_RAYLET][0].process.send_signal(
signal.SIGSTOP
)
wait_for_condition(lambda: requests.get(uri).status_code == 503)
resp = requests.get(uri)
assert "raylet: Local Raylet failed" in resp.text
def test_unified_healthz_worker_gcs_down(monkeypatch, ray_start_cluster):
h_head = ray_start_cluster.add_node()
agent_port = find_free_port()
h_worker = ray_start_cluster.add_node(dashboard_agent_listen_port=agent_port)
uri = f"http://{h_worker.node_ip_address}:{agent_port}/api/healthz"
wait_for_condition(lambda: requests.get(uri).status_code == 200)
resp = requests.get(uri)
assert "gcs: success (no local gcs)" in resp.text
# Stop the head GCS server.
h_head.all_processes[ray_constants.PROCESS_TYPE_GCS_SERVER][0].process.kill()
# Worker health check should still succeed.
assert requests.get(uri).status_code == 200
if __name__ == "__main__":
sys.exit(pytest.main(["-v", __file__]))