python - AWS Lambda Python 与 MySQL

Question

我正在尝试从我的 AWS Lambda 脚本连接到 mysql。
我做到了
pip install --allow-external mysql-connector-python mysql-connector-python -t <dir>
在本地目录中安装 mysql-connector-python。
我压缩文件并将其上传到 AWS Lambda，我的 python 文件正在其中执行。
在我初始化 mysql 连接之前，我的脚本一直在正确执行。
我有这个

log('about to set connection for db')
connection = mysql.connector.connect(user=DB_USER, password=DB_PASSWORD, host=DB_HOST, database=DB_DATABASE)
query = "SELECT * FROM customers WHERE customer_email LIKE '%s' LIMIT 1"
log('set connection for DB')

'about to set connection for db' 正在记录，但'set connection for DB' 从未被记录，我的程序超时并停止执行。

我可能做错了什么？

编辑:这是我从 lambda_function.py 调用的类

import mysql.connector
import logging
from mysql.connector import errorcode

class MySql( object ):

    USER    =None
    PASSWORD=None
    HOST    =None
    DATABASE=None


    logger = logging.getLogger()
    logger.setLevel( logging.INFO )

    def __init__(self, user, password, host, database):
        global USER, PASSWORD, HOST, DATABASE
        USER        = user
        PASSWORD    = password
        HOST        = host
        DATABASE    = database

    def getId( self, customer_email ):
        email_exists = False

        connection = mysql.connector.connect(user=USER, password=PASSWORD, host=HOST, database=DATABASE)
        query = "SELECT * FROM customers WHERE customer_email LIKE '%s' LIMIT 1"

        cursor = connection.cursor()
        cursor.execute( query % customer_email )
        data = cursor.fetchall()
        id = None
        for row in data :
            id = row[1]
            break

        cursor.close()
        connection.close()
        return id

    def insertCustomer( self, customer_email, id ):
        log('about to set connection for db')
        connection = mysql.connector.connect(user=USER, password=PASSWORD, host=HOST, database=DATABASE)
        log('set connection for DB')
        cursor = connection.cursor()
        try:
            cursor.execute("INSERT INTO customers VALUES (%s,%s)",( customer_email, id ))
            connection.commit()
        except:
            connection.rollback()
            connection.close()
    def log( logStr):
        logger.info( logStr )

def main():
    user = 'xxx'
    password = 'xxx'
    host = ' xxx'
    database = 'xxx'

    mysql = MySql( user, password, host, database )

    id = mysql.getId('testing')
    if id == None:
        mysql.insertCustomer('blah','blahblah')
    print id

if __name__ == "__main__":
    main()

当我在本地执行 MySql.py 时，我的代码工作正常。
我的数据库得到更新，但当我从 AWS 运行它时没有任何反应。

Answer 1

它是 AWS (RDS) 上的 MySQL 实例还是本地数据库？如果是 RDS，请检查与您的数据库实例关联的 vpc 的 NACL 入站规则。入站规则可以允许/拒绝来自特定 IP 源的规则