1. A computer-implemented method of managing mapping information associated with an object, wherein the mapping information maps a key associated with the object to one or more instances of the object on a storage system, the method comprising: transmitting a request to write mapping information associated with an object to at least one component maintaining the mapping information; storing, as cached mapping information, a placeholder indicating that the write of the mapping information has not been acknowledged as complete by the at least one component maintaining the mapping information; receiving an acknowledgement of completion of the write of the mapping information by the at least one component maintaining the mapping information; and updating the cached mapping information based at least in part on the written mapping information.