I know that 96.0 is supporting namespace, it is the first time I played with it (on 0.96.0). I went to the source of all documents: http://hbase.apache.org/book/namespace.html, and follow the example in "5.3.1. Namespace management".
Well, I can't find 'delete_namespace' using hbase shell. 'create_namespace' and 'alter_namespace' are there.
Did I look at the wrong place? :-)
BTW, here is the commands I have related with namespaces $ ls shell/commands/*namespace* shell/commands/alter_namespace.rb shell/commands/drop_namespace.rb shell/commands/create_namespace.rb shell/commands/list_namespace.rb shell/commands/describe_namespace.rb shell/commands/list_namespace_tables.rb