Exercise 13 - Consistency Levels
18) Now bring down the other node that was up when we originally did our write. Wait for the node to terminate before continuing.
19) Start cqlsh again and re-execute the SELECT command.
I first shut down node 3 and do the exercise and finished when i reached Q18 i shutdown node2 and it show me error. My node 2 and 3 is in the same rack. So this Q18 is to ask me shutdown node 1?
It looks like you want to connect to node1 but you haven't specified the correct CQL port.
cqlsh by default connects to CQL port 9042 but because all DSE instances are running in the same VM, they have to be configured to listen to different ports. The nodes in the DS201 VM are configured as follows:
$ for _node in node*; do echo "$_node - `grep ^native_transport_port $_node/resources/cassandra/conf/cassandra.yaml`"; done node1 - native_transport_port: 9041 node2 - native_transport_port: 9042 node3 - native_transport_port: 9043
When I check on my copy of the VM, here are the running ports:
$ sudo lsof -nPi | grep LISTEN | grep 904 java 1544 ubuntu 481u IPv4 19709 0t0 TCP 127.0.0.1:9041 (LISTEN) java 2135 ubuntu 485u IPv4 24848 0t0 TCP 127.0.0.1:9042 (LISTEN) java 18820 ubuntu 480u IPv4 45516 0t0 TCP 127.0.0.1:9043 (LISTEN)
If you want to connect to node1, you need to specify the IP and port:
$ cqlsh 127.0.0.1 9041
Cheers!
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