jetpants_collins: Pool#after_master_promotion! should also eject any …

…slaves that are no longer slaving

plugins/jetpants_collins/pool.rb

@@ -128,6 +128,18 @@ def after_master_promotion!(promoted, enslave_old_master=true)
           end
         end
       end
+
+      # Clean up any slaves that are no longer slaving (again only looking at current datacenter)
+      assets = Jetpants.topology.server_node_assets(@name, :slave)
+      assets.reject! {|a| a.location && a.location.upcase != Plugin::JetCollins.datacenter}
+      assets.map(&:to_db).each do |db|
+        if !db.running? || db.pool != self
+          db.output "Not replicating from new master, removing from pool #{self}"
+          db.collins_pool = ''
+          db.collins_secondary_role = ''
+          db.collins_status = 'Unallocated'
+        end
+      end
     end