AshinGau commented on code in PR #10942:
URL: https://github.com/apache/doris/pull/10942#discussion_r923007998
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be/src/vec/exec/file_scan_node.cpp:
##########
@@ -205,8 +231,9 @@ Status FileScanNode::close(RuntimeState* state) {
_scan_finished.store(true);
_queue_writer_cond.notify_all();
_queue_reader_cond.notify_all();
- for (int i = 0; i < _scanner_threads.size(); ++i) {
- _scanner_threads[i].join();
+ {
+ std::unique_lock<std::mutex> l(_batch_queue_lock);
+ _queue_reader_cond.wait(l, [this] { return _num_running_scanners == 0;
});
Review Comment:
Threads in the thread pool are reused and will not be terminated or released.
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