::

   pgcopydb stream sentinel set: Maintain a sentinel table on the source database
   
   Available commands:
     pgcopydb stream sentinel set
       startpos  Set the sentinel start position LSN on the source database
       endpos    Set the sentinel end position LSN on the source database
       apply     Set the sentinel apply mode on the source database
       prefetch  Set the sentinel prefetch mode on the source database
   
