After upgrading from 1.0.8 I see that now the directory structure has changed and has a structure like <keyspace><columnfamily> (part of the 1.1.x migration). But I also see that directories appear like <keyspace><columnfamily-old>, and the content of that 'old' directory is only one file <columnfamily-old.json>.
Questions : Should this xxx-old.json file be in the other directory? Should the extra directory <xxx-old> not be created? Or was that intentionally done and is it allowed to remove these directories ( manually ... )? Thanks