BiteTheDDDDt commented on a change in pull request #6323:
URL: https://github.com/apache/incubator-doris/pull/6323#discussion_r686455399



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File path: be/src/olap/storage_engine.cpp
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@@ -685,6 +693,8 @@ OLAPStatus StorageEngine::_start_trash_sweep(double* usage) 
{
     // clean unused rowset metas in OlapMeta
     _clean_unused_rowset_metas();
 
+    _trash_sweep_lock.unlock();

Review comment:
       > 
   > 
   > The method may be returned before you unlock this lock.
   > you can use `src//util/mutex.h` to unlock automatically when 
deconstructing.
   
   I use unique_lock to fix it.




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