Reset level to zero on a set of SSTables using
sstablelevelreset [--really-reset] keyspace table
--really-reset is a warning that DataStax Enterprise (DSE) is stopped before the tool is run.
Tarball and Installer No-Services path:
Stop DSE on the node. Choose a keyspace and table to reset to level 0.
sstablelevelreset --really-reset cycling cyclist_name
If the designated table is already at level 0, then no change occurs. If the SSTable is releveled, the metadata is rewritten to designate the level to 0.