HBase and Other Big Data Databases • 135
• Row keys
• Super column families
• Column families
• Column names
e various levels of columns help the database developer decide how to
agglomerate data so it makes sense to the user and eases retrieval.
Another level of structure in Cassandra is the keyspace, which is analogous
to a namespace (say, Java), and provides a container for multiple nodes within a
cluster of servers. e keyspace will need information, like a cluster name, rep-
lication requirements, column information, and more. ink of each of these
structural items as if they were containers, and you will get a better picture of
how they operate. For example, column families are stored as separate les. In
essence, we have a way of stori ...