Removing all traces of Cassandra or DSE packages

After a failed attempt to provision a node or a cluster, you must remove all traces of Cassandra or DSE packages from the affected nodes.

1. Log into each node.
2. Run the following BASH script on each node using sudo.

   
   #!/bin/bash
   
   # Stop services
   /etc/init.d/cassandra stop
   /etc/init.d/dse stop
   /etc/init.d/datastax-agent stop
   
   # Remove packages
   PACKAGES=(dsc dsc1.1 dsc12 cassandra apache-cassandra1 dsc-demos \
   dse-libspark \
   dse dse-libhadoop-native dse-libhadoop dse-libcassandra dse-hive dse-libhive dse-pig \
   dse-libpig dse-demos dse-libsqoop dse-libtomcat dse-liblog4j dse-libsolr dse-libmahout dse-full)
   DEB_PACKAGES=(python-cql python-thrift-basic)
   RPM_PACKAGES=(python26-cql python26-thrift)
   if [ `which dpkg` ]; then
   PLIST=(${PACKAGES[@]} ${DEB_PACKAGES[@]})
   dpkg -P ${PLIST[*]}
   rm -rf /etc/apt/sources.list.d/datastax.list
   else
   PLIST=(${PACKAGES[@]} ${RPM_PACKAGES[@]})
   yum -y remove ${PLIST[*]}
   rm -rf  /etc/yum.repos.d/datastax.repo
   fi
   
   # Cleanup log and configuration files
   rm -rf /var/lib/cassandra/* /var/log/{cassandra,hadoop,hive,pig}/* /etc/{cassandra,dse}/* \
   /usr/share/{dse,dse-demos} /etc/default/{dse,cassandra}
   

   • copy, paste, and run the script from the command line
   • save the script to a local file and copy to each node to run from the command line