         destroy: =>
             @datacenter.off 'all', @render
 
-            @model.off 'change:replica_affinities', @compute_max_machines_and_render
-            @model.off 'change:primary_uuid', @compute_max_machines_and_render
             @model.off 'change:primary_uuid', @render
             progress_list.off 'all', @render_progress
 


            @datacenter.on 'all', @render

            @model.on 'change:replica_affinities', @compute_max_machines_and_render
            @model.on 'change:primary_uuid', @compute_max_machines_and_render
            @model.on 'change:primary_uuid', @render
            progress_list.on 'all', @render_progress


            @.$('.replicas_acks-alert').html ''

        check_replicas_acks: (event) =>
            # Update @max_machines
            @compute_max_machines()

            if event?.which? and event.which is 13
                @submit_replicas_acks()

