Cassandra down?

I am getting the below error.

Connection error: (‘Unable to connect to any servers’, {‘127.0.0.1’: error(111, “Tried connecting to [(‘127.0.0.1’, 9042)]. Last error: Connection refused”)})

Hi Mithun
Cassandra available in lab? if so how you are accessing it.
I asked several time in lab but no response yet.