一段时间后 MySQL 连接超时（Python、MySQL、FLASK）

Question

我目前在 uWGI 的帮助下在 NGINX 服务器上运行一个烧瓶 python 应用程序。静态页面始终可访问，但使用连接 (MySQL) 的页面在 2 分钟后超时。这是怎么回事？它们变得简单地变得不可用。

我尝试过的事情：

• 不使用全局
• 使用池
• 关闭防火墙

.

# using python version 2.7.10
from flask import Flask, jsonify, request, session
import mysql.connector.pooling

#Make a connection with the DB

dbconfig = {
  "host" : "12.34.5.78",
  "database": "db",
  "user":     "user",
  "password": "pass"
}

conn = mysql.connector.connect(pool_name = "mypool",
                      pool_size = 6,
                      **dbconfig)

#Define the root
app = Flask(__name__)

#Landings page
@app.route('/')
def index():
    return "Hello World."

# return all resources by name
@app.route('/resources', methods=['GET'])
def allResourceNames():
    conn1 = mysql.connector.connect(pool_name="mypool")
    reader = conn1.cursor()
    query = ("SELECT name FROM resources")
    reader.execute(query)
    resources = []
    for name in reader:
    resources.append({'name' : name[0]})
    reader.close()
    conn1.close()
    return jsonify({"resources" : resources})

if __name__ == "__main__":
    app.run(debug=True)

Answer 1

根据MySQL Python Connector Doc 您可能希望将connection_timeout 设置为连接选项。例如，

conn = mysql.connector.connect(pool_name = "mypool",
                  pool_size = 6, connection_timeout=3600,
                  **dbconfig)