ray/release/long_running_tests/workloads/serve_failure.py
Edward Oakes 0f9d1bb223
Serve failure release test fix (#15276)
This test is currently not tested in CI
2021-04-13 17:49:29 +01:00

116 lines
3.4 KiB
Python

import random
import string
import time
import requests
import ray
from ray import serve
from ray.cluster_utils import Cluster
num_redis_shards = 1
redis_max_memory = 10**8
object_store_memory = 10**8
num_nodes = 4
cpus_per_node = 10
cluster = Cluster()
for i in range(num_nodes):
cluster.add_node(
redis_port=6379 if i == 0 else None,
num_redis_shards=num_redis_shards if i == 0 else None,
num_cpus=16,
num_gpus=0,
resources={str(i): 2},
object_store_memory=object_store_memory,
redis_max_memory=redis_max_memory,
dashboard_host="0.0.0.0",
)
ray.init(
address=cluster.address, dashboard_host="0.0.0.0", log_to_driver=False)
serve.start(detached=True)
@ray.remote
class RandomKiller:
def __init__(self, kill_period_s=1):
self.client = serve.connect()
self.kill_period_s = kill_period_s
def _get_all_serve_actors(self):
controller = self.client._controller
routers = list(ray.get(controller.get_http_proxies.remote()).values())
all_handles = routers + [controller]
worker_handle_dict = ray.get(controller._all_replica_handles.remote())
for _, replica_dict in worker_handle_dict.items():
all_handles.extend(list(replica_dict.values()))
return all_handles
def run(self):
while True:
ray.kill(
random.choice(self._get_all_serve_actors()), no_restart=False)
time.sleep(self.kill_period_s)
class RandomTest:
def __init__(self, max_deployments=1):
self.max_deployments = max_deployments
self.weighted_actions = [
(self.create_deployment, 1),
(self.verify_deployment, 4),
]
self.deployments = []
for _ in range(max_deployments):
self.create_deployment()
def create_deployment(self):
if len(self.deployments) == self.max_deployments:
deployment_to_delete = self.deployments.pop()
serve.delete_deployment(deployment_to_delete)
new_name = "".join(
[random.choice(string.ascii_letters) for _ in range(10)])
@serve.deployment(name=new_name)
def handler(self, *args):
return new_name
handler.deploy()
self.deployments.append(new_name)
def verify_deployment(self):
deployment = random.choice(self.deployments)
for _ in range(100):
try:
r = requests.get("http://127.0.0.1:8000/" + deployment)
assert r.text == deployment
except Exception:
print("Request to {} failed.".format(deployment))
time.sleep(0.01)
def run(self):
iteration = 0
start_time = time.time()
previous_time = start_time
while True:
for _ in range(100):
actions, weights = zip(*self.weighted_actions)
random.choices(actions, weights=weights)[0]()
new_time = time.time()
print("Iteration {}:\n"
" - Iteration time: {}.\n"
" - Absolute time: {}.\n"
" - Total elapsed time: {}.".format(
iteration, new_time - previous_time, new_time,
new_time - start_time))
previous_time = new_time
iteration += 1
random_killer = RandomKiller.remote()
random_killer.run.remote()
RandomTest(max_deployments=num_nodes * cpus_per_node).run()