Troubleshooting with cassandra on Mac OSX El Captain

README.md

• Download the tar.gz of Cassandra from http://cassandra.apache.org/download/
• extract it in your own ~ wherever it makes sense for you (me it's in ~/bin/)
• Add the cassandra-*/bin/ to your $PATH in your bash profile (me I need to add /Users/gre/bin/apache-cassandra-2.2.3/bin/)
• Try to run cassandra.
• If it runs fine you are done.
• If you get into trouble with an error like Unable to gossip with any seeds or Fatal exception during initialization org.apache.cassandra.exceptions.ConfigurationException: Found system keyspace files, but they couldn't be loaded!
  • edit conf/cassandra.yaml in the extracted cassandra directory
  • comment the line # listen_address: localhost
  • start the cassandra command again.
  • You might also need to rm -rf data/data/system from that directory in case you still have the error.
• if you still have a problem. try again from a fresh Cassandra..