diff --git a/conf/config.json b/conf/config.json
index 8226a69be..d369e3707 100644
--- a/conf/config.json
+++ b/conf/config.json
@@ -37,13 +37,7 @@
       }
     ],
     "distrusts": [],
-    "switches": [
-      {
-        "bundleName": "distributed_device_profile_service",
-        "appId": "distributed_device_profile_service",
-        "checker": "SystemChecker"
-      }
-    ]
+    "switches": []
   },
   "networks": {
     "chains": [
diff --git a/services/distributeddataservice/adapter/communicator/src/communicator_context.cpp b/services/distributeddataservice/adapter/communicator/src/communicator_context.cpp
index cace1d847..691b0aed2 100644
--- a/services/distributeddataservice/adapter/communicator/src/communicator_context.cpp
+++ b/services/distributeddataservice/adapter/communicator/src/communicator_context.cpp
@@ -44,9 +44,10 @@ Status CommunicatorContext::RegSessionListener(const DevChangeListener *observer
         ZLOGE("observer is nullptr");
         return Status::INVALID_ARGUMENT;
     }
-    if (!observers_.Insert(observer, observer)) {
-        ZLOGE("insert observer fail");
-        return Status::ERROR;
+    std::lock_guard<decltype(mutex_)> lock(mutex_);
+    auto it = std::find(observers_.begin(), observers_.end(), observer);
+    if (it == observers_.end()) {
+        observers_.emplace_back(observer);
     }
     return Status::SUCCESS;
 }
@@ -63,9 +64,10 @@ Status CommunicatorContext::UnRegSessionListener(const DevChangeListener *observ
         ZLOGE("observer is nullptr");
         return Status::INVALID_ARGUMENT;
     }
-    if (!observers_.Erase(observer)) {
-        ZLOGE("erase observer fail");
-        return Status::ERROR;
+    std::lock_guard<decltype(mutex_)> lock(mutex_);
+    auto it = std::find(observers_.begin(), observers_.end(), observer);
+    if (it != observers_.end()) {
+        observers_.erase(it);
     }
     return Status::SUCCESS;
 }
@@ -77,19 +79,17 @@ void CommunicatorContext::NotifySessionReady(const std::string &deviceId)
         return;
     }
     devices_.Insert(deviceId, deviceId);
-    std::vector<const DevChangeListener *> observers;
-    observers_.ForEach([&observers](const auto &key, auto &value) {
-        observers.emplace_back(value);
-        return false;
-    });
-    ZLOGI("Notify session begin, deviceId:%{public}s, observer count:%{public}zu",
-        KvUtils::ToBeAnonymous(deviceId).c_str(), observers.size());
     DeviceInfo devInfo;
     devInfo.uuid = deviceId;
-    for (const auto &observer : observers) {
-        if (observer != nullptr) {
-            observer->OnSessionReady(devInfo);
+    {
+        std::lock_guard<decltype(mutex_)> lock(mutex_);
+        for (const auto &observer : observers_) {
+            if (observer != nullptr) {
+                observer->OnSessionReady(devInfo);
+            }
         }
+        ZLOGI("Notify session begin, deviceId:%{public}s, observer count:%{public}zu",
+            KvUtils::ToBeAnonymous(deviceId).c_str(), observers_.size());
     }
     std::lock_guard<decltype(sessionMutex_)> sessionLockGard(sessionMutex_);
     if (closeListener_) {
diff --git a/services/distributeddataservice/adapter/include/communicator/communicator_context.h b/services/distributeddataservice/adapter/include/communicator/communicator_context.h
index 1b234bddb..a77a2db3a 100644
--- a/services/distributeddataservice/adapter/include/communicator/communicator_context.h
+++ b/services/distributeddataservice/adapter/include/communicator/communicator_context.h
@@ -52,7 +52,8 @@ private:
     mutable std::mutex sessionMutex_;
     OnCloseAble closeListener_;
     std::shared_ptr<ExecutorPool> executors_;
-    ConcurrentMap<const DevChangeListener *, const DevChangeListener *> observers_ {};
+    std::mutex mutex_;
+    std::vector<const DevChangeListener *> observers_;
     ConcurrentMap<const std::string, const std::string> devices_ {};
 };
 } // namespace OHOS::DistributedData
diff --git a/services/distributeddataservice/app/src/kvstore_meta_manager.cpp b/services/distributeddataservice/app/src/kvstore_meta_manager.cpp
index ed210074d..003660d6e 100644
--- a/services/distributeddataservice/app/src/kvstore_meta_manager.cpp
+++ b/services/distributeddataservice/app/src/kvstore_meta_manager.cpp
@@ -150,7 +150,7 @@ void KvStoreMetaManager::InitDeviceOnline()
                 EventCenter::GetInstance().PostEvent(std::move(finEvent));
             };
         auto store = GetMetaKvStore();
-        uint16_t mask = data.dynamic & 0x000F;
+        uint16_t mask = data.dynamic & DEFAULT_MASK;
         if (((mask & DeviceMatrix::META_STORE_MASK) != 0) && store != nullptr) {
             auto status = store->Sync({ deviceId }, DistributedDB::SyncMode::SYNC_MODE_PUSH_PULL, onComplete);
             if (status == OK) {
diff --git a/services/distributeddataservice/app/src/kvstore_meta_manager.h b/services/distributeddataservice/app/src/kvstore_meta_manager.h
index a59f4b143..a2355edd1 100644
--- a/services/distributeddataservice/app/src/kvstore_meta_manager.h
+++ b/services/distributeddataservice/app/src/kvstore_meta_manager.h
@@ -36,6 +36,7 @@ enum class CHANGE_FLAG {
 class KvStoreMetaManager {
 public:
     static constexpr uint32_t META_STORE_VERSION = 0x03000001;
+    static constexpr uint16_t DEFAULT_MASK = 0x000F;
     using ChangeObserver = std::function<void(const std::vector<uint8_t> &, const std::vector<uint8_t> &, CHANGE_FLAG)>;
 
     class MetaDeviceChangeListenerImpl : public AppDistributedKv::AppDeviceChangeListener {