Question

Hi i have a python script that connects to an Amazon RDS machine and check for new entries.
my scripts works on the localhost perfectly. But on the RDS it does not detect the new entry. once i cancel the script and run again i get the new entry. For testing i tried it out like this

cont = MySQLdb.connect("localhost","root","password","DB") 
cursor = cont.cursor() 
for i in range(0, 100):
    cursor.execute("Select count(*) from box")
    A = cursor.fetchone()
    print A 

and during this process when i add a new entry it does not detect the new entry but when i close the connection and run it again i get the new entry. Why is this i checked the cache it was at 0. what else am i missing.

Answer 1

I got the solution to this, it is due to the Isolation level in Mysql, all i had to do was

Set the default transaction isolation level transaction-isolation = READ-COMMITTED

And i am using Django for this i had to add this in the django database settings

'OPTIONS': {
                "init_command": "SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED"
                }