897 Edited the installation script

Had to edit the installation script to correctly
use the "sed" command to replace lines, this was done
in order to fill in the character parameters.

toolset/setup/linux/installer.py

@@ -200,10 +200,12 @@ class Installer:
     rm apache-cassandra-*-bin.tar.gz
     fuser -k -TERM /ssd/log/cassandra/system.log
     sleep 5
-    rm -rf /ssd/cassandra /ssd/log/cassandra
+    sudo rm -rf /ssd/cassandra /ssd/log/cassandra
     sudo mkdir -p /ssd/cassandra /ssd/log/cassandra
     sudo chown tfb:tfb /ssd/cassandra /ssd/log/cassandra
-    sed -e "s/TFB_DATABASE_HOST/$TFB_DATABASE_HOST/" -i'' cassandra/cassandra.yaml
+    sed -i "s/^.*seeds:.*/          - seeds: \"%s\"/" cassandra/cassandra.yaml
+    sed -i "s/^listen_address:.*/listen_address: %s/" cassandra/cassandra.yaml
+    sed -i "s/^rpc_address:.*/rpc_address: %s/" cassandra/cassandra.yaml
     cp cassandra/cassandra.yaml apache-cassandra-$CASS_V/conf
     cp cassandra/log4j-server.properties apache-cassandra-$CASS_V/conf
     pushd apache-cassandra-$CASS_V
@@ -212,7 +214,7 @@ class Installer:
     cat ../cassandra/create-keyspace.cql | ./bin/cqlsh $TFB_DATABASE_HOST
     python ../cassandra/db-data-gen.py | ./bin/cqlsh $TFB_DATABASE_HOST
     popd
-    """
+    """ % (os.environ["TFB_DATABASE_HOST"], os.environ["TFB_DATABASE_HOST"], os.environ["TFB_DATABASE_HOST"])
     
     print("\nINSTALL: %s" % self.benchmarker.database_ssh_string)
     p = subprocess.Popen(self.benchmarker.database_ssh_string.split(" "), stdin=subprocess.PIPE)