dbms: Added comment [#METR-2944].

eba56181 · Alexey Milovidov · 2e0943fb · eba56181
隐藏空白更改
内联并排

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dbms/src/Storages/StorageMergeTree.cpp dbms/src/Storages/StorageMergeTree.cpp +2 -0

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--- a/dbms/src/Storages/StorageMergeTree.cpp
+++ b/dbms/src/Storages/StorageMergeTree.cpp
@@ -1158,6 +1158,8 @@ void StorageMergeTree::rename(const String & new_path_to_db, const String & new_
 {
 	joinMergeThreads();
 	
+	/// Кажется тут race condition - в этот момент мердж может запуститься снова.
+
 	std::string new_full_path = new_path_to_db + escapeForFileName(new_name) + '/';
 	
 	Poco::File(full_path).renameTo(new_full_path);