diff --git a/cpp/unittest/db/utils.cpp b/cpp/unittest/db/utils.cpp
index e49e138b47..724ea1c1d9 100644
--- a/cpp/unittest/db/utils.cpp
+++ b/cpp/unittest/db/utils.cpp
@@ -150,27 +150,6 @@ zilliz::milvus::engine::Options MySqlMetaTest::GetOptions() {
     return options;
 }
 
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-void MemManagerTest::SetUp() {
-    DBTest::SetUp();
-
-    auto res_mgr = engine::ResMgrInst::GetInstance();
-    res_mgr->Add(engine::ResourceFactory::Create("disk", "DISK", 0, true, false));
-    res_mgr->Add(engine::ResourceFactory::Create("cpu", "CPU", 0, true, true));
-
-    auto default_conn = engine::Connection("IO", 500.0);
-    res_mgr->Connect("disk", "cpu", default_conn);
-    res_mgr->Start();
-    engine::SchedInst::GetInstance()->Start();
-}
-
-void MemManagerTest::TearDown() {
-    DBTest::TearDown();
-
-    engine::ResMgrInst::GetInstance()->Stop();
-    engine::SchedInst::GetInstance()->Stop();
-}
-
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 int main(int argc, char **argv) {
     ::testing::InitGoogleTest(&argc, argv);
diff --git a/cpp/unittest/db/utils.h b/cpp/unittest/db/utils.h
index 4efc2a381d..09fa4eb122 100644
--- a/cpp/unittest/db/utils.h
+++ b/cpp/unittest/db/utils.h
@@ -83,6 +83,4 @@ class MySqlMetaTest : public BaseTest {
 
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 class MemManagerTest : public DBTest {
-    void SetUp() override;
-    void TearDown() override;
 };