[INFO] Options: Namespace(analyticsnodes=0, base64postscript=None, bootstrap=False, cfsreplication=None, clustername='cassandra-db-cluster-3e9f15ac', customreservation=None, email=None, hadoop=False, heapsize=None, multiregion=False, opscenter=None, opscenterinterface=None, opscenterip=None, opscenteronly=False, opscenterssl=False, password=None, raidonly=False, realtimenodes=6, reflector=None, release=None, rpcbinding=False, searchnodes=0, seed_indexes=[0, 6, 6], seeds=None, totalnodes=6, username=None, version='community', vnodes=False)
[ERROR] Exception seen in ds1_launcher.py:
Traceback (most recent call last):
  File "/home/ubuntu/datastax_ami/ds1_launcher.py", line 22, in initial_configurations
    ds2_configure.run()
  File "/home/ubuntu/datastax_ami/ds2_configure.py", line 1176, in run
  File "/home/ubuntu/datastax_ami/ds2_configure.py", line 577, in construct_yaml
IOError: [Errno 2] No such file or directory: '/etc/cassandra/cassandra.yaml'