var os *objSweeper
	if remoteCallRequired {
		var dstRecords []dns.SrvRecord
		dstRecords, err = globalDNSConfig.Get(dstBucket)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}

		// Send PutObject request to appropriate instance (in federated deployment)
		core, rerr := getRemoteInstanceClient(r, getHostFromSrv(dstRecords))
		if rerr != nil {