使用Locust对MongoDB进行负载测试的操作步骤

pip install pymongo locust

# coding=utf-8
from locust import User, task, between, events
from pymongo import MongoClient
import random
import string
import logging
 
# 设置日志
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger("MongoDB Load Test")
 
# MongoDB连接配置
MONGO_URI = "mongodb://admin:admin@localhost:27017/?authSource=admin"
DATABASE_NAME = "test"
COLLECTION_NAME = "sample"
 
 
# 自定义MongoDB客户端
class MongoDBClient:
    def __init__(self):
        try:
            self.client = MongoClient(MONGO_URI)
            self.db = self.client[DATABASE_NAME]
            self.collection = self.db[COLLECTION_NAME]
            logger.info("MongoDB client initialized successfully.")
        except Exception as e:
            logger.error(f"Failed to connect to MongoDB: {e}")
            self.client = None
 
    def insert_document(self, document):
        if self.collection is not None:
            self.collection.insert_one(document)
            logger.info("Document inserted successfully.")
        else:
            logger.error("MongoDB collection is not available.")
 
    def close_connection(self):
        if self.client is not None:
            self.client.close()
            logger.info("MongoDB client connection closed.")
 
 
# Locust用户类
class MongoDBUser(User):
    wait_time = between(1, 2)
    mongo_client = None
 
    @staticmethod
    def initialize_mongo_client():
        if MongoDBUser.mongo_client is None:
            logger.info("Initializing MongoDB client...")
            MongoDBUser.mongo_client = MongoDBClient()
 
    @staticmethod
    def cleanup_mongo_client():
        if MongoDBUser.mongo_client:
            MongoDBUser.mongo_client.close_connection()
            MongoDBUser.mongo_client = None
            logger.info("MongoDB client cleaned up.")
 
    # 监听测试开始
    @staticmethod
    @events.test_start.add_listener
    def on_test_start(environment, **kwargs):
        MongoDBUser.initialize_mongo_client()
 
    # 监听测试结束
    @staticmethod
    @events.test_stop.add_listener
    def on_test_stop(environment, **kwargs):
        MongoDBUser.cleanup_mongo_client()
 
    @task(2)
    def insert_data(self):
        """模拟插入数据的任务"""
        if MongoDBUser.mongo_client is None:
            logger.error("MongoDB client is not initialized.")
            return
        document = {
            "name": ''.join(random.choices(string.ascii_letters, k=10)),
            "age": random.randint(18, 65),
            "address": ''.join(random.choices(string.ascii_letters + string.digits, k=20)),
        }
        MongoDBUser.mongo_client.insert_document(document)
        logger.info(f"Inserted document: {document}")

locust -f load_mongo.py --headless -u 5 -r 1 -t 5s