In one of our clusters we sometimes end up with PGs that are mapped incorrectly 
and settle into a ‘remapped’ state (forever).  Is there a way to nudge a 
specific PG to recalculate placement and relocate the data?  One option that 
we’re *dangerously* unclear about is the use of ceph pg force_create_pg <pgid>. 
Is this a viable command to use in a ‘remapped’ situation?

Paul Evans
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