diff --git a/services/distributeddataservice/service/test/BUILD.gn b/services/distributeddataservice/service/test/BUILD.gn
index e49bc9089863d21b58e418be6f4ba21059ec7652..2af4f07de480b808e635edefa5cfe6eb629bc2c4 100644
--- a/services/distributeddataservice/service/test/BUILD.gn
+++ b/services/distributeddataservice/service/test/BUILD.gn
@@ -1291,6 +1291,12 @@ ohos_unittest("DumpHelperTest") {
 
 ohos_unittest("UdmfServiceImplTest") {
   module_out_path = module_output_path
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+    blocklist = "${datamgr_service_path}/cfi_blocklist.txt"
+  }
   sources = [
     "${data_service_path}/framework/feature/feature_system.cpp",
     "${data_service_path}/app/src/kvstore_meta_manager.cpp",
diff --git a/services/distributeddataservice/service/test/udmf_run_time_store_test.cpp b/services/distributeddataservice/service/test/udmf_run_time_store_test.cpp
index 486cd352932453c5d171085c490643b291f1201f..71b8d5c259543b82a29364178657520fa92e4f8d 100644
--- a/services/distributeddataservice/service/test/udmf_run_time_store_test.cpp
+++ b/services/distributeddataservice/service/test/udmf_run_time_store_test.cpp
@@ -629,19 +629,6 @@ HWTEST_F(UdmfRunTimeStoreTest, Clear01, TestSize.Level1)
     EXPECT_EQ(ret, store->Delete(DATA_PREFIX));
 }
 
-/**
-* @tc.name: Close01
-* @tc.desc: check for legal parameters, delete entries error.
-* @tc.type: FUNC
-* @tc.require:
-*/
-HWTEST_F(UdmfRunTimeStoreTest, Close01, TestSize.Level1)
-{
-    auto store = std::make_shared<RuntimeStore>(STORE_ID);
-    EXPECT_NO_FATAL_FAILURE(store->Close());
-}
-
-
 /**
 * @tc.name: GetSummary
 * @tc.desc: check for legal parameters, delete entries error.
diff --git a/services/distributeddataservice/service/udmf/store/runtime_store.cpp b/services/distributeddataservice/service/udmf/store/runtime_store.cpp
index d13e1adec59091eef37cf2d6d2b077895a07dc57..e218e7b1fdbf61a4159a727a935b6885adf36dd0 100644
--- a/services/distributeddataservice/service/udmf/store/runtime_store.cpp
+++ b/services/distributeddataservice/service/udmf/store/runtime_store.cpp
@@ -407,11 +407,6 @@ Status RuntimeStore::GetBatchData(const std::string &dataPrefix, std::vector<Uni
     return E_OK;
 }
 
-void RuntimeStore::Close()
-{
-    delegateManager_->CloseKvStore(kvStore_.get());
-}
-
 bool RuntimeStore::Init()
 {
     if (!SaveMetaData()) {  // get keyinfo about create db fail.
diff --git a/services/distributeddataservice/service/udmf/store/runtime_store.h b/services/distributeddataservice/service/udmf/store/runtime_store.h
index ef9c37e36c0789a10dc25fa7b7d9bb6ff698651c..d5f4be1a84c048369bd9e3bb5f52fde1cf951f23 100644
--- a/services/distributeddataservice/service/udmf/store/runtime_store.h
+++ b/services/distributeddataservice/service/udmf/store/runtime_store.h
@@ -44,7 +44,6 @@ public:
     Status PutRuntime(const std::string &key, const Runtime &runtime) override;
     Status GetRuntime(const std::string &key, Runtime &runtime) override;
     Status PutSummary(UnifiedKey &key, const Summary &summary) override;
-    void Close() override;
     bool Init() override;
 
 private:
diff --git a/services/distributeddataservice/service/udmf/store/store.h b/services/distributeddataservice/service/udmf/store/store.h
index 69091ed91cfe198454f88f6aac209634e88e4b43..1b215e2501fe6d1da3e81713600ac945307af125 100644
--- a/services/distributeddataservice/service/udmf/store/store.h
+++ b/services/distributeddataservice/service/udmf/store/store.h
@@ -41,7 +41,6 @@ public:
     virtual Status GetRuntime(const std::string &key, Runtime &runtime) = 0;
     virtual Status PutSummary(UnifiedKey &key, const Summary &summary) = 0;
     virtual bool Init() = 0;
-    virtual void Close() = 0;
 
     bool operator<(const Time &time) const
     {