nnnn / litellm /proxy /queue /celery_app.py
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from dotenv import load_dotenv
load_dotenv()
import json, subprocess
import psutil # Import the psutil library
import atexit
try:
### OPTIONAL DEPENDENCIES ### - pip install redis and celery only when a user opts into using the async endpoints which require both
from celery import Celery
import redis
except:
import sys
subprocess.check_call(
[
sys.executable,
"-m",
"pip",
"install",
"redis",
"celery"
]
)
import time
import sys, os
sys.path.insert(
0, os.path.abspath("../../..")
) # Adds the parent directory to the system path - for litellm local dev
import litellm
# Redis connection setup
pool = redis.ConnectionPool(host=os.getenv("REDIS_HOST"), port=os.getenv("REDIS_PORT"), password=os.getenv("REDIS_PASSWORD"), db=0, max_connections=5)
redis_client = redis.Redis(connection_pool=pool)
# Celery setup
celery_app = Celery('tasks', broker=f"redis://default:{os.getenv('REDIS_PASSWORD')}@{os.getenv('REDIS_HOST')}:{os.getenv('REDIS_PORT')}", backend=f"redis://default:{os.getenv('REDIS_PASSWORD')}@{os.getenv('REDIS_HOST')}:{os.getenv('REDIS_PORT')}")
celery_app.conf.update(
broker_pool_limit = None,
broker_transport_options = {'connection_pool': pool},
result_backend_transport_options = {'connection_pool': pool},
)
# Celery task
@celery_app.task(name='process_job', max_retries=3)
def process_job(*args, **kwargs):
try:
llm_router: litellm.Router = litellm.Router(model_list=kwargs.pop("llm_model_list"))
response = llm_router.completion(*args, **kwargs) # type: ignore
if isinstance(response, litellm.ModelResponse):
response = response.model_dump_json()
return json.loads(response)
return str(response)
except Exception as e:
raise e
# Ensure Celery workers are terminated when the script exits
def cleanup():
try:
# Get a list of all running processes
for process in psutil.process_iter(attrs=['pid', 'name']):
# Check if the process is a Celery worker process
if process.info['name'] == 'celery':
print(f"Terminating Celery worker with PID {process.info['pid']}")
# Terminate the Celery worker process
psutil.Process(process.info['pid']).terminate()
except Exception as e:
print(f"Error during cleanup: {e}")
# Register the cleanup function to run when the script exits
atexit.register(cleanup)