liaoxin01 commented on code in PR #34485:
URL: https://github.com/apache/doris/pull/34485#discussion_r1596163228


##########
be/src/runtime/load_stream.cpp:
##########
@@ -223,12 +223,13 @@ Status TabletStream::close() {
     bthread::Mutex mu;
     std::unique_lock<bthread::Mutex> lock(mu);
     bthread::ConditionVariable cv;
-    auto wait_func = [this, &mu, &cv] {
+    auto wait_func = [this, &cv] {
         signal::set_signal_task_id(_load_id);
         for (auto& token : _flush_tokens) {
-            token->wait();
+            if (token != nullptr) {
+                token->wait();
+            }
         }
-        std::lock_guard<bthread::Mutex> lock(mu);

Review Comment:
   why remove this lock?



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