Thanks Mark, indeed changing port to 9042 worked. In addition I set following parameters in my cassandra.yaml
rpc_address: 0.0.0.0 broadcast_rpc_address: 1.2.3.4 ( External IP address of my EC2 machine) Regards, -Subodh Nijsure On Sun, Aug 10, 2014 at 6:13 AM, Mark Reddy <mark.re...@boxever.com> wrote: > Hi, > > While I have no direct experience with the Python driver itself I took a > quick and it uses Cassandra's native transport protocol, so setting the port > to 9160 (Thrift protocol) won't work. You will need to set it to the native > transport port, which is 9042. > > Also make sure that you have the rpc_address (and if needed > broadcast_rpc_address) set correctly. > > On a side note, if you are trying out 2.1.0, 2.1.0-rc5 is out and with many > fixes and improvements. > > > Mark > > > On Sun, Aug 10, 2014 at 1:04 PM, Subodh Nijsure <subodh.nijs...@gmail.com> > wrote: >> >> Hello, >> >> >> I have setup a new EC2 instance to run cassandra on EC2, have gone >> through bunch of questions that don't seem to help. I am running >> apache-cassandra-2.1.0-rc3 >> >> I have opened port 9160, 9042 on my EC2 instance say its IP address is >> 1.2.3.4 >> >> Since this is single node system I haven't opened other ports as pointed >> in >> >> >> http://www.datastax.com/documentation/cassandra/2.0/cassandra/install/installAMISecurityGroup.html >> >> When I try to connect to this host using the python driver with >> cluster config like this: >> >> cluster = Cluster(contact_points=['1.2.3.4',], port=9160) >> >> I am getting error: >> >> File "....cluster.py", line 1649, in _reconnect_internal >> raise NoHostAvailable("Unable to connect to any servers", errors) >> cassandra.cluster.NoHostAvailable: ('Unable to connect to any >> servers', {'1.2.3.4': error(111, 'Connection refused')}) >> >> Any ideas on what incantation I need to have in cassandra.yml file to >> allow external clients to connect cassandra instance running on EC2 ? >> >> -Subodh > >
