Files
FastDeploy/fastdeploy/router/utils.py
Juncai 08ca0f6aea [Feature] [PD] add simple router and refine splitwise deployment (#4709)
* add simple router and refine splitwise deployment

* fix
2025-11-06 14:56:02 +08:00

132 lines
4.3 KiB
Python

"""
# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
import asyncio
from dataclasses import asdict, dataclass, field
from enum import Enum
from typing import List, Union
import aiohttp
import requests
class InstanceRole(Enum):
MIXED = 0
PREFILL = 1
DECODE = 2
@dataclass
class InstanceInfo:
role: Union[InstanceRole, str]
host_ip: str
port: Union[int, str]
connector_port: Union[int, str] = 0
engine_worker_queue_port: Union[int, str] = 0
transfer_protocol: List[str] = field(default_factory=list)
rdma_ports: Union[List[str], List[int]] = field(default_factory=list)
device_ids: Union[List[str], List[int]] = field(default_factory=list)
def __post_init__(self):
"""check and unify fields"""
if isinstance(self.role, str):
try:
self.role = InstanceRole[self.role.upper()]
except KeyError:
raise ValueError(f"Invalid role string: {self.role}")
elif not isinstance(self.role, InstanceRole):
raise TypeError(f"role must be InstanceRole or str, got {type(self.role)}")
for t in self.transfer_protocol:
assert t in ["ipc", "rdma"], f"Invalid transfer_protocol: {self.transfer_protocol}"
self.port = str(self.port)
self.connector_port = str(self.connector_port)
self.engine_worker_queue_port = str(self.engine_worker_queue_port)
if self.rdma_ports:
self.rdma_ports = [str(p) for p in self.rdma_ports]
if self.device_ids:
self.device_ids = [str(i) for i in self.device_ids]
def to_dict(self):
return {k: (v.name if isinstance(v, Enum) else v) for k, v in asdict(self).items()}
def url(self) -> str:
url = f"{self.host_ip}:{self.port}"
if not url.startswith(("http://", "https://")):
url = f"http://{url}"
return url
def check_service_health(base_url: str, timeout: int = 3) -> bool:
"""
Check the health status of a service.
Args:
base_url (str): The base URL of the service, e.g. "http://127.0.0.1:8080"
timeout (int): Request timeout in seconds.
Returns:
bool: True if the service is healthy, False otherwise.
"""
if not base_url.startswith(("http://", "https://")):
base_url = f"http://{base_url}"
url = f"{base_url.rstrip('/')}/health"
try:
resp = requests.get(url, timeout=timeout)
if resp.status_code == 200:
return True
else:
return False
except Exception:
return False
async def check_service_health_async(base_url: str, timeout: int = 3) -> bool:
"""
Asynchronously check the health status of a service.
Args:
base_url (str): The base URL of the service, e.g. "http://127.0.0.1:8080"
timeout (int): Request timeout in seconds.
Returns:
bool: True if the service is healthy, False otherwise.
"""
if not base_url.startswith(("http://", "https://")):
base_url = f"http://{base_url}"
url = f"{base_url.rstrip('/')}/health"
try:
async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=timeout)) as session:
async with session.get(url) as resp:
status = resp.status
text = await resp.text()
if status == 200:
print(f"[OK] Service is healthy ({status})")
return True
else:
print(f"[WARN] Service not healthy ({status}): {text}")
return False
except aiohttp.ClientError as e:
print(f"[ERROR] Failed to connect to {url}: {e}")
return False
except asyncio.TimeoutError:
print(f"[ERROR] Request to {url} timed out after {timeout}s")
return False