diff --git a/example/katran.thrift b/example/katran.thrift
deleted file mode 100755
index 465674294..000000000
--- a/example/katran.thrift
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Copyright (C) 2018-present, Facebook, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-cpp_include "<unordered_map>"
-
-namespace cpp2 lb.katran
-namespace py lb.katran
-
-include "thrift/annotation/cpp.thrift"
-
-enum Action {
-  ADD = 0,
-  DEL = 1,
-}
-
-struct Vip {
-  1: string address;
-  2: i32 port;
-  3: i32 protocol;
-}
-
-struct VipMeta {
-  1: Vip vip;
-  2: i64 flags;
-  /*
-   * setFlag controls if we setting this flags or removing it from the VIP
-   */
-  3: optional bool setFlag = 1;
-}
-
-struct RealMeta {
-  1: string address;
-  2: i32 flags;
-  /*
-   * setFlag controls if we setting this flags or removing it from the Real
-   */
-  3: optional bool setFlag = 1;
-}
-
-struct Real {
-  1: string address;
-  2: i32 weight;
-  3: i32 flags;
-}
-
-struct QuicReal {
-  1: string address;
-  2: i32 id;
-}
-
-struct Mac {
-  1: string mac;
-}
-
-struct Stats {
-  1: i64 v1;
-  2: i64 v2;
-}
-
-struct Healthcheck {
-  1: i32 somark;
-  2: string address;
-}
-
-@cpp.Type{template = "std::unordered_map"}
-typedef map<i32, string> hcMap
-
-typedef list<Real> Reals
-typedef list<QuicReal> QuicReals
-
-service KatranService {
-  bool changeMac(1: Mac newMac);
-
-  Mac getMac();
-
-  bool addVip(1: VipMeta vipMeta);
-
-  bool delVip(1: Vip vip);
-
-  list<Vip> getAllVips();
-
-  bool modifyVip(1: VipMeta vipMeta);
-
-  bool modifyReal(1: RealMeta realMeta);
-
-  i64 getVipFlags(1: Vip vip);
-
-  bool addRealForVip(1: Real real, 2: Vip vip);
-
-  bool delRealForVip(1: Real real, 2: Vip vip);
-
-  bool modifyRealsForVip(1: Action action, 2: Reals real, 3: Vip vip);
-
-  Reals getRealsForVip(1: Vip vip);
-
-  bool modifyQuicRealsMapping(1: Action action, 2: QuicReals reals);
-
-  QuicReals getQuicRealsMapping();
-
-  Stats getStatsForVip(1: Vip vip);
-
-  Stats getLruStats();
-
-  Stats getLruMissStats();
-
-  Stats getLruFallbackStats();
-
-  Stats getIcmpTooBigStats();
-
-  bool addHealthcheckerDst(1: Healthcheck healthcheck);
-
-  bool delHealthcheckerDst(1: i32 somark);
-
-  hcMap getHealthcheckersDst();
-}