Reputation: 1605
I'm trying to connect to mysql from my AWS Lambda script.
I did pip install --allow-external mysql-connector-python mysql-connector-python -t <dir>
to install mysql-connector-python in local directory.
I zipped the file and uploaded it to AWS Lambda where my python files are being executed.
My scripts are executing correctly up to the point where I initialize a mysql connection.
I have this
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' is being logged but 'set connection for DB' is never logged and my program hits a timeout and stops executing.
What might I be doing wrong?
EDIT: This is my class that I'm calling from lambda_function.py
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()
When I execute the MySql.py locally my code works fine.
My database gets updated but nothing happens when I run it from AWS.
Upvotes: 3
Views: 6771
Reputation: 1
when you did a zip file create. Did you do a pip to target directory. I have enclosed the syntax below.This copies the files to your target directory to zip.
That may be the reason you are able to execute it locally but not in a lambda.
This is the syntax
pip install module-name -t /path/to/PythonExampleDir
Upvotes: 0
Reputation: 6333
Is it a MySQL instance on AWS (RDS) or on premise DB? If RDS, check the NACL inbound rules of the vpc associated with your DB instance. Inbound rules can allow/deny from specific IP sources
Upvotes: 2