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Hello, not sure if you already did this, but just including two instances (in your case lambda and rds) in the same subnet and the same security group doesn't open any communication ports - you need to define the specific security rules to open the DB port for communication.
If you want to keep them in the same security group, you'll have to create a self-referencing rule in this group with the right DB port to open (depending on your database engine) and indicating the source as the same security group.
Regards
已回答 2 年前
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- 已提問 1 年前
Was Database created? What is the exact error message?
@SandeepVudata The database was created. The error message says "ERROR: Unexpected error: Could not connect to MySQL instance. (1049, "Unknown database 'database_name'")" I have my database connection in a try except block, and this is the exact error that is supposed to be thrown when I can't connect to the database. I am trying to connect by using pymysql.connect() with the endpoint, username, password, and db name as parameters, but the code can't find the name of the database even though it is correct.