diff --git a/src/observer/ob_inner_sql_rpc_proxy.h b/src/observer/ob_inner_sql_rpc_proxy.h
index 660bc13b0..0b1b38cf9 100644
--- a/src/observer/ob_inner_sql_rpc_proxy.h
+++ b/src/observer/ob_inner_sql_rpc_proxy.h
@@ -52,6 +52,7 @@ public:
     OPERATION_TYPE_UNLOCK_ALONE_TABLET = 18,
     OPERATION_TYPE_LOCK_OBJS = 19,
     OPERATION_TYPE_UNLOCK_OBJS = 20,
+    OPERATION_TYPE_REPLACE_LOCK = 21,
     OPERATION_TYPE_MAX = 100
   };
 
diff --git a/src/share/ob_rpc_struct.cpp b/src/share/ob_rpc_struct.cpp
index 6ebb3b17d..b50140c10 100644
--- a/src/share/ob_rpc_struct.cpp
+++ b/src/share/ob_rpc_struct.cpp
@@ -3427,7 +3427,8 @@ OB_SERIALIZE_MEMBER((ObCreateIndexArg, ObIndexArg),
                     exist_all_column_group_,
                     index_cgs_,
                     vidx_refresh_info_,
-                    is_rebuild_index_
+                    is_rebuild_index_,
+                    is_index_scope_specified_
                     );
 
 int ObCreateAuxIndexArg::assign(const ObCreateAuxIndexArg &other)
diff --git a/src/storage/ddl/ob_ddl_clog.h b/src/storage/ddl/ob_ddl_clog.h
index a1e8f8622..a5a115dc1 100644
--- a/src/storage/ddl/ob_ddl_clog.h
+++ b/src/storage/ddl/ob_ddl_clog.h
@@ -34,6 +34,9 @@ enum class ObDDLClogType : int64_t
   DDL_TABLET_SCHEMA_VERSION_CHANGE_LOG = 0x10,
   DDL_START_LOG = 0x20,
   DDL_COMMIT_LOG = 0x40,// rename from DDL_PREPARE_LOG
+  DDL_TABLET_SPLIT_START_LOG = 0x41,
+  DDL_TABLET_SPLIT_FINISH_LOG = 0x42,
+  DDL_TABLET_FREEZE_LOG = 0x43,
   DDL_FINISH_LOG = 0x80,// finish log, smilarity role in shared storage mode
 };
 
diff --git a/src/storage/tablelock/ob_table_lock_rpc_struct.cpp b/src/storage/tablelock/ob_table_lock_rpc_struct.cpp
index 3d186f08c..0c20e4984 100644
--- a/src/storage/tablelock/ob_table_lock_rpc_struct.cpp
+++ b/src/storage/tablelock/ob_table_lock_rpc_struct.cpp
@@ -59,7 +59,8 @@ OB_SERIALIZE_MEMBER_INHERIT(ObLockTableRequest, ObLockRequest,
                             detect_param_);
 
 OB_SERIALIZE_MEMBER_INHERIT(ObLockPartitionRequest, ObLockTableRequest,
-                            part_object_id_);
+                            part_object_id_,
+                            is_sub_part_);
 
 OB_SERIALIZE_MEMBER_INHERIT(ObLockTabletRequest, ObLockTableRequest,
                             tablet_id_);
diff --git a/src/storage/tablelock/ob_table_lock_rpc_struct.h b/src/storage/tablelock/ob_table_lock_rpc_struct.h
index 6a6dda29c..b4c4234f3 100644
--- a/src/storage/tablelock/ob_table_lock_rpc_struct.h
+++ b/src/storage/tablelock/ob_table_lock_rpc_struct.h
@@ -265,7 +265,7 @@ struct ObLockPartitionRequest : public ObLockTableRequest
 {
   OB_UNIS_VERSION_V(1);
 public:
-  ObLockPartitionRequest() : ObLockTableRequest(), part_object_id_(0)
+  ObLockPartitionRequest() : ObLockTableRequest(), part_object_id_(0), is_sub_part_(false)
   { type_ = ObLockMsgType::LOCK_PARTITION_REQ; }
   virtual ~ObLockPartitionRequest() { reset(); }
   virtual void reset();
@@ -273,6 +273,7 @@ public:
   INHERIT_TO_STRING_KV("ObLockTableRequest", ObLockTableRequest, K_(part_object_id));
 public:
   uint64_t part_object_id_;
+  bool is_sub_part_;
 };
 
 struct ObUnLockPartitionRequest : public ObLockPartitionRequest