key_value mod: Use a retention policy for bucket tables
key_value mod: Use a retention policy for bucket tables

Pchelolo/restbase,d00rman/restbase,wikimedia/restbase,milimetric/restbase,wikimedia/mediawiki-services-restbase,inverno/restbase,cscott/restbase,wikimedia/hyperswitch,wikimedia/restbase,gwicke/restbase,inverno/restbase,cscott/restbase,Pchelolo/restbase,eevans/restbase,eevans/restbase,wikimedia/mediawiki-services-restbase,d00rman/restbase,milimetric/restbase,gwicke/restbase