diff --git a/be/src/exec/broker_scanner.cpp b/be/src/exec/broker_scanner.cpp
index 017a03ef558b46..7c7d4f5bee6142 100644
--- a/be/src/exec/broker_scanner.cpp
+++ b/be/src/exec/broker_scanner.cpp
@@ -237,6 +237,7 @@ Status BrokerScanner::open_file_reader() {
     case TFileType::FILE_STREAM: {
         _stream_load_pipe = _state->exec_env()->load_stream_mgr()->get(range.load_id);
         if (_stream_load_pipe == nullptr) {
+            VLOG(3) << "unknown stream load id: " << UniqueId(range.load_id);
             return Status("unknown stream load id");
         }
         _cur_file_reader = _stream_load_pipe.get();
diff --git a/be/src/runtime/routine_load/data_consumer.cpp b/be/src/runtime/routine_load/data_consumer.cpp
index dcb30023f83d65..0e701b3153a4a8 100644
--- a/be/src/runtime/routine_load/data_consumer.cpp
+++ b/be/src/runtime/routine_load/data_consumer.cpp
@@ -145,6 +145,8 @@ Status KafkaDataConsumer::start(StreamLoadContext* ctx) {
         << ", batch size: " << left_bytes
         << ". " << ctx->brief();
 
+    // copy one
+    std::map<int32_t, int64_t> cmt_offset = ctx->kafka_info->cmt_offset;
     MonotonicStopWatch watch;
     watch.start();
     Status st;
@@ -157,6 +159,7 @@ Status KafkaDataConsumer::start(StreamLoadContext* ctx) {
 
         if (_finished) {
             kakfa_pipe ->finish();
+            ctx->kafka_info->cmt_offset = std::move(cmt_offset); 
             return Status::OK;
         }
 
@@ -175,6 +178,7 @@ Status KafkaDataConsumer::start(StreamLoadContext* ctx) {
                 DCHECK(left_bytes < ctx->kafka_info->max_batch_size);
                 DCHECK(left_rows < ctx->kafka_info->max_batch_rows);
                 kakfa_pipe->finish();
+                ctx->kafka_info->cmt_offset = std::move(cmt_offset); 
                 _finished = true;
                 return Status::OK;
             }
@@ -195,7 +199,7 @@ Status KafkaDataConsumer::start(StreamLoadContext* ctx) {
                 if (st.ok()) {
                     left_rows--;
                     left_bytes -= msg->len();
-                    ctx->kafka_info->cmt_offset[msg->partition()] = msg->offset();
+                    cmt_offset[msg->partition()] = msg->offset();
                     VLOG(3) << "consume partition[" << msg->partition()
                             << " - " << msg->offset() << "]";
                 }
diff --git a/be/src/runtime/routine_load/routine_load_task_executor.cpp b/be/src/runtime/routine_load/routine_load_task_executor.cpp
index 8dbff529c00b60..de385dafcd2d27 100644
--- a/be/src/runtime/routine_load/routine_load_task_executor.cpp
+++ b/be/src/runtime/routine_load/routine_load_task_executor.cpp
@@ -37,7 +37,7 @@ Status RoutineLoadTaskExecutor::submit_task(const TRoutineLoadTask& task) {
     std::unique_lock<std::mutex> l(_lock); 
     if (_task_map.find(task.id) != _task_map.end()) {
         // already submitted
-        LOG(INFO) << "routine load task " << task.id << " has already been submitted";
+        LOG(INFO) << "routine load task " << UniqueId(task.id) << " has already been submitted";
         return Status::OK;
     }
 
@@ -127,6 +127,8 @@ void RoutineLoadTaskExecutor::exec_task(
         } \
     } while (false);
 
+    VLOG(1) << "begin to execute routine load task: " << ctx->brief();
+
     // get or create data consumer
     std::shared_ptr<DataConsumer> consumer;
     HANDLE_ERROR(consumer_pool->get_consumer(ctx, &consumer), "failed to get consumer");    
diff --git a/be/src/runtime/stream_load/load_stream_mgr.h b/be/src/runtime/stream_load/load_stream_mgr.h
index 97e5777adc1779..cfaf08a94a0a63 100644
--- a/be/src/runtime/stream_load/load_stream_mgr.h
+++ b/be/src/runtime/stream_load/load_stream_mgr.h
@@ -40,6 +40,7 @@ class LoadStreamMgr {
             return Status("id already exist");
         }
         _stream_map.emplace(id, stream);
+        VLOG(3) << "put stream load pipe: " << id;
         return Status::OK;
     }
     
@@ -59,6 +60,7 @@ class LoadStreamMgr {
         auto it = _stream_map.find(id);
         if (it != std::end(_stream_map)) {
             _stream_map.erase(it);
+            VLOG(3) << "remove stream load pipe: " << id;
         }
         return;
     }