diff --git a/tddb/td/db/binlog/Binlog.h b/tddb/td/db/binlog/Binlog.h
index cdda868b4..c98da3aac 100644
--- a/tddb/td/db/binlog/Binlog.h
+++ b/tddb/td/db/binlog/Binlog.h
@@ -71,6 +71,10 @@ class Binlog {
     add_event(BinlogEvent(std::move(raw_event)));
   }
 
+  void add_raw_event(BufferSlice &&raw_event, BinlogDebugInfo info) {
+    add_event(BinlogEvent(std::move(raw_event), info));
+  }
+
   void add_event(BinlogEvent &&event);
   void sync();
   void flush();
diff --git a/tddb/td/db/binlog/BinlogEvent.h b/tddb/td/db/binlog/BinlogEvent.h
index df4ff930e..d5e882ef0 100644
--- a/tddb/td/db/binlog/BinlogEvent.h
+++ b/tddb/td/db/binlog/BinlogEvent.h
@@ -40,6 +40,20 @@ static constexpr size_t MIN_EVENT_SIZE = EVENT_HEADER_SIZE + EVENT_TAIL_SIZE;
 
 extern int32 VERBOSITY_NAME(binlog);
 
+struct BinlogDebugInfo {
+  BinlogDebugInfo() = default;
+  BinlogDebugInfo(const char *file, int line) : file(file), line(line) {
+  }
+  const char *file{""};
+  int line{0};
+};
+inline StringBuilder &operator<<(StringBuilder &sb, const BinlogDebugInfo &info) {
+  if (info.line == 0) {
+    return sb;
+  }
+  return sb << "[" << info.file << ":" << info.line << "]";
+}
+
 // TODO: smaller BinlogEvent
 struct BinlogEvent {
   int64 offset_;
@@ -54,6 +68,8 @@ struct BinlogEvent {
 
   BufferSlice raw_event_;
 
+  BinlogDebugInfo debug_info_;
+
   enum ServiceTypes { Header = -1, Empty = -2, AesCtrEncryption = -3, NoEncryption = -4 };
   enum Flags { Rewrite = 1, Partial = 2 };
 
@@ -77,18 +93,23 @@ struct BinlogEvent {
   explicit BinlogEvent(BufferSlice &&raw_event) {
     init(std::move(raw_event), false).ensure();
   }
+  explicit BinlogEvent(BufferSlice &&raw_event, BinlogDebugInfo info) {
+    init(std::move(raw_event), false).ensure();
+    debug_info_ = info;
+  }
   Status init(BufferSlice &&raw_event, bool check_crc = true) TD_WARN_UNUSED_RESULT;
 
   static BufferSlice create_raw(uint64 id, int32 type, int32 flags, const Storer &storer);
   std::string public_to_string() const {
     return PSTRING() << "LogEvent[" << tag("id", format::as_hex(id_)) << tag("type", type_) << tag("flags", flags_)
-                     << tag("data", data_.size()) << "]";
+                     << tag("data", data_.size()) << "]" << debug_info_;
   }
 };
 
 inline StringBuilder &operator<<(StringBuilder &sb, const BinlogEvent &event) {
   return sb << "LogEvent[" << tag("id", format::as_hex(event.id_)) << tag("type", event.type_)
-            << tag("flags", event.flags_) << tag("data", format::as_hex_dump<4>(event.data_)) << "]";
+            << tag("flags", event.flags_) << tag("data", format::as_hex_dump<4>(event.data_)) << "]"
+            << event.debug_info_;
 }
 
 // Implementation
diff --git a/tddb/td/db/binlog/BinlogHelper.h b/tddb/td/db/binlog/BinlogHelper.h
index 3d2450430..9fbba9cfa 100644
--- a/tddb/td/db/binlog/BinlogHelper.h
+++ b/tddb/td/db/binlog/BinlogHelper.h
@@ -31,10 +31,13 @@ static uint64 binlog_rewrite(const BinlogT &binlog_ptr, uint64 logevent_id, int3
   return seq_no;
 }
 
+#define binlog_erase(...) binlog_erase_impl({__FILE__, __LINE__}, __VA_ARGS__)
+
 template <class BinlogT>
-static uint64 binlog_erase(const BinlogT &binlog_ptr, uint64 logevent_id, Promise<> promise = Promise<>()) {
+static uint64 binlog_erase_impl(BinlogDebugInfo info, const BinlogT &binlog_ptr, uint64 logevent_id,
+                                Promise<> promise = Promise<>()) {
   auto seq_no = binlog_ptr->next_id();
-  binlog_ptr->add_raw_event(seq_no,
+  binlog_ptr->add_raw_event(info, seq_no,
                             BinlogEvent::create_raw(logevent_id, BinlogEvent::ServiceTypes::Empty,
                                                     BinlogEvent::Flags::Rewrite, EmptyStorer()),
                             std::move(promise));
diff --git a/tddb/td/db/binlog/BinlogInterface.h b/tddb/td/db/binlog/BinlogInterface.h
index 2360f3c48..292c66f80 100644
--- a/tddb/td/db/binlog/BinlogInterface.h
+++ b/tddb/td/db/binlog/BinlogInterface.h
@@ -30,11 +30,14 @@ class BinlogInterface {
   void close_and_destroy(Promise<> promise = {}) {
     close_and_destroy_impl(std::move(promise));
   }
+  void add_raw_event(BinlogDebugInfo info, uint64 id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
+    add_raw_event_impl(id, std::move(raw_event), std::move(promise), info);
+  }
   void add_raw_event(uint64 id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
-    add_raw_event_impl(id, std::move(raw_event), std::move(promise));
+    add_raw_event_impl(id, std::move(raw_event), std::move(promise), {});
   }
   void lazy_sync(Promise<> promise = Promise<>()) {
-    add_raw_event_impl(next_id(), BufferSlice(), std::move(promise));
+    add_raw_event_impl(next_id(), BufferSlice(), std::move(promise), {});
   }
   virtual void force_sync(Promise<> promise) = 0;
   virtual void force_flush() = 0;
@@ -46,6 +49,6 @@ class BinlogInterface {
  protected:
   virtual void close_impl(Promise<> promise) = 0;
   virtual void close_and_destroy_impl(Promise<> promise) = 0;
-  virtual void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise) = 0;
+  virtual void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) = 0;
 };
 }  // namespace td
diff --git a/tddb/td/db/binlog/ConcurrentBinlog.cpp b/tddb/td/db/binlog/ConcurrentBinlog.cpp
index aaf07f296..b8a0ec7a3 100644
--- a/tddb/td/db/binlog/ConcurrentBinlog.cpp
+++ b/tddb/td/db/binlog/ConcurrentBinlog.cpp
@@ -34,11 +34,12 @@ class BinlogActor : public Actor {
   struct Event {
     BufferSlice raw_event;
     Promise<> sync_promise;
+    BinlogDebugInfo debug_info;
   };
-  void add_raw_event(uint64 seq_no, BufferSlice &&raw_event, Promise<> &&promise) {
-    processor_.add(seq_no, Event{std::move(raw_event), std::move(promise)}, [&](uint64 id, Event &&event) {
+  void add_raw_event(uint64 seq_no, BufferSlice &&raw_event, Promise<> &&promise, BinlogDebugInfo info) {
+    processor_.add(seq_no, Event{std::move(raw_event), std::move(promise), info}, [&](uint64 id, Event &&event) {
       if (!event.raw_event.empty()) {
-        do_add_raw_event(std::move(event.raw_event));
+        do_add_raw_event(std::move(event.raw_event), event.debug_info);
       }
       do_lazy_sync(std::move(event.sync_promise));
     });
@@ -92,8 +93,8 @@ class BinlogActor : public Actor {
     }
   }
 
-  void do_add_raw_event(BufferSlice &&raw_event) {
-    binlog_->add_raw_event(std::move(raw_event));
+  void do_add_raw_event(BufferSlice &&raw_event, BinlogDebugInfo info) {
+    binlog_->add_raw_event(std::move(raw_event), info);
   }
 
   void try_flush() {
@@ -188,8 +189,8 @@ void ConcurrentBinlog::close_impl(Promise<> promise) {
 void ConcurrentBinlog::close_and_destroy_impl(Promise<> promise) {
   send_closure(std::move(binlog_actor_), &detail::BinlogActor::close_and_destroy, std::move(promise));
 }
-void ConcurrentBinlog::add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise) {
-  send_closure(binlog_actor_, &detail::BinlogActor::add_raw_event, id, std::move(raw_event), std::move(promise));
+void ConcurrentBinlog::add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) {
+  send_closure(binlog_actor_, &detail::BinlogActor::add_raw_event, id, std::move(raw_event), std::move(promise), info);
 }
 void ConcurrentBinlog::force_sync(Promise<> promise) {
   send_closure(binlog_actor_, &detail::BinlogActor::force_sync, std::move(promise));
diff --git a/tddb/td/db/binlog/ConcurrentBinlog.h b/tddb/td/db/binlog/ConcurrentBinlog.h
index ce77a78a8..e5b84030c 100644
--- a/tddb/td/db/binlog/ConcurrentBinlog.h
+++ b/tddb/td/db/binlog/ConcurrentBinlog.h
@@ -59,7 +59,7 @@ class ConcurrentBinlog : public BinlogInterface {
   void init_impl(std::unique_ptr<Binlog> binlog, int scheduler_id);
   void close_impl(Promise<> promise) override;
   void close_and_destroy_impl(Promise<> promise) override;
-  void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise) override;
+  void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) override;
 
   ActorOwn<detail::BinlogActor> binlog_actor_;
   string path_;
diff --git a/test/secret.cpp b/test/secret.cpp
index 2abed9787..362ff0f2b 100644
--- a/test/secret.cpp
+++ b/test/secret.cpp
@@ -426,7 +426,7 @@ class FakeBinlog
   }
   void close_and_destroy_impl(Promise<> promise) override {
   }
-  void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise) override {
+  void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) override {
     auto event = BinlogEvent(std::move(raw_event));
     LOG(INFO) << "ADD EVENT: " << event.id_ << " " << event;
     pending_events_.emplace_back();