diff --git a/apps/efka/src/efka_agent.erl b/apps/efka/src/efka_agent.erl
index 9e39b17..96f4ce2 100644
--- a/apps/efka/src/efka_agent.erl
+++ b/apps/efka/src/efka_agent.erl
@@ -98,10 +98,10 @@ handle_event(info, {connect_reply, Reply}, ?STATE_CONNECTING, State = #state{tra
     end;
 
 %% 权限校验的回复
-handle_event(info, {auth_reply, {ok, #auth_reply{code = 1, message = Message, repository_url = RepositoryUrl}}}, ?STATE_AUTH, State = #state{transport_pid = TransportPid}) ->
+handle_event(info, {auth_reply, {ok, #auth_reply{code = 1, message = Message, repository_url = RepositoryUrl}}}, ?STATE_AUTH, State) ->
     efka_logger:debug("[efka_agent] auth failed, message: ~p, repository_url: ~p", [Message, RepositoryUrl]),
     {next_state, ?STATE_ACTIVATED, State};
-handle_event(info, {auth_reply, {ok, #auth_reply{code = -1, message = Message}}}, ?STATE_AUTH, State = #state{transport_pid = TransportPid}) ->
+handle_event(info, {auth_reply, {ok, #auth_reply{code = -1, message = Message}}}, ?STATE_AUTH, State) ->
     %% 主机在后台的授权未通过；此时agent不能推送数据给云端服务器，但是云端服务器可以推送命令给agent
     %% socket的连接状态需要维持
     efka_logger:debug("[efka_agent] auth denied, message: ~p", [Message]),
diff --git a/apps/efka/src/efka_downloader.erl b/apps/efka/src/efka_downloader.erl
index 59fe92e..492667e 100644
--- a/apps/efka/src/efka_downloader.erl
+++ b/apps/efka/src/efka_downloader.erl
@@ -163,23 +163,6 @@ receive_data1(RequestId, File) ->
             receive_data1(RequestId, File)
     end.
 
--spec extra_filename(Headers :: list(), Default :: string()) -> Filename :: string().
-extra_filename(Headers, Default) when is_list(Headers), is_list(Default) ->
-    case lists:filter(fun({K, _}) -> string:lowercase(K) =:= <<"content-disposition">> end, Headers) of
-        [{_, <<"attachment; ", Rest/binary>>}|_] ->
-            Params0 = binary:split(Rest, <<";">>, [global]),
-            Params = lists:map(fun(P) -> list_to_tuple(binary:split(P, <<"=">>)) end, Params0),
-            case proplists:get_value(<<"filename">>, Params) of
-                undefined ->
-                    Default;
-                Filename0 ->
-                    Filename = binary_to_list(Filename0),
-                    string:trim(Filename, both, "\"")
-            end;
-        _ ->
-            Default
-    end.
-
 -spec get_filename_from_url(Url :: string()) -> string().
 get_filename_from_url(Url) when is_list(Url) ->
     URIMap = uri_string:parse(Url),
diff --git a/apps/efka/src/efka_micro_service.erl b/apps/efka/src/efka_micro_service.erl
index d9e5bf1..64ae4d5 100644
--- a/apps/efka/src/efka_micro_service.erl
+++ b/apps/efka/src/efka_micro_service.erl
@@ -226,6 +226,9 @@ handle_info({'DOWN', _Ref, process, ChannelPid, Reason}, State = #state{channel_
 terminate(Reason, _State = #state{os_pid = OSPid}) ->
     lager:debug("[efka_micro_service] terminate with reason: ~p", [Reason]),
     kill_os_pid(OSPid),
+    ok;
+terminate(Reason, _State) ->
+    lager:debug("[efka_micro_service] terminate with reason: ~p", [Reason]),
     ok.
 
 %% @private