Prevent abort on shutdown if the fs is readonly

dbms/src/Storages/StorageMergeTree.cpp

@@ -108,7 +108,18 @@ void StorageMergeTree::shutdown()
     if (shutdown_called)
         return;
     shutdown_called = true;
-    clearOldPartsFromFilesystem(true);
+
+    try
+    {
+        clearOldPartsFromFilesystem(true);
+    }
+    catch (...)
+    {
+        /// Example: the case of readonly filesystem, we have failure removing old parts.
+        /// Should not prevent table shutdown.
+        tryLogCurrentException(log);
+    }
+
     merger_mutator.merges_blocker.cancelForever();
     parts_mover.moves_blocker.cancelForever();