Need Script for connecting cassandra with password and execute CQL using python

Question

I need a script for which i need to connect CassDb nodes with password using python script

I tried bellow script

from cassandra.auth import PlainTextAuthProvider
from cassandra.cluster import Cluster
ap = PlainTextAuthProvider(username='##',password='##')
cass_contact_points=['cassdb01.p01.eng.sjc01.com', 'cassdb02.p01.eng.sjc01.com']
cluster = Cluster(cass_contact_points,auth_provider=ap,port=50126)
session = cluster.connect('##')

I'm getting bellow error:

File "C:\python35\lib\site-packages\cassandra\cluster.py", line 2792, in _reconnect_internal
raise NoHostAvailable("Unable to connect to any servers", errors)cassandra.cluster.NoHostAvailable: ('Unable to connect to any servers', {'10.44.67.92': OperationTimedOut('errors=None, last_host=None'), '10.44.67.91': OperationTimedOut('errors=None, last_host=None')})

Answer 1

I see two potential problems.

First, unless you're in a upgrade scenario or you've had past problems with protocol versions, I would not specify that. The driver should negotiate that value. Setting it to 2 will fail with Cassandra 3.x, for example.

Second, I don't think the driver can properly parse-out ports from the endpoints.

node_ips = ['cassdb01.p01.eng.sjc01.com:50126', 'cassdb02.p01.eng.sjc01.com:50126']

When I pass the port along with my endpoints, I get a similar failure. So I would try changing that line to this:

node_ips = ['cassdb01.p01.eng.sjc01.com', 'cassdb02.p01.eng.sjc01.com']

Try starting with that. I have some other thoughts, but let's get those two obvious settings out of the way.