In HBase whenever the cell is deleted, it is not actually deleted basically a tombstone marker is set internally, which makes the deleted cell invisible. Deletion is actually done during major compaction. Three types of tombstone markers are:
Column delete marker- It is used to delete or mark all the columns of the table
Version delete marker- It is used to delete or mark single version of the column
Family delete marker- It is used to delete or mark all columns of a column family