diff --git a/src/gausskernel/ddes/adapter/ss_dms_bufmgr.cpp b/src/gausskernel/ddes/adapter/ss_dms_bufmgr.cpp
index e0d49272e..b1fe367b2 100644
--- a/src/gausskernel/ddes/adapter/ss_dms_bufmgr.cpp
+++ b/src/gausskernel/ddes/adapter/ss_dms_bufmgr.cpp
@@ -63,11 +63,11 @@ void InitDmsContext(dms_context_t *dmsContext)
     dmsContext->sess_id = (unsigned int)(t_thrd.proc ? t_thrd.proc->logictid : t_thrd.myLogicTid + TotalProcs);
     dmsContext->db_handle = t_thrd.proc;
     if (AmDmsReformProcProcess()) {
-        dmsContext->sess_rcy = DMS_SESSION_IN_REFORM;
+        dmsContext->sess_type = DMS_SESSION_REFORM;
     } else if (AmPageRedoProcess() || AmStartupProcess()) {
-        dmsContext->sess_rcy = DMS_SESSION_IN_RECOVERY;
+        dmsContext->sess_type = DMS_SESSION_RECOVER;
     } else {
-        dmsContext->sess_rcy = DMS_SESSION_NORMAL;
+        dmsContext->sess_type = DMS_SESSION_NORMAL;
     }
     dmsContext->is_try = 0;
 }
diff --git a/src/include/ddes/dms/dms_api.h b/src/include/ddes/dms/dms_api.h
index b9b44f9a5..ac6836a23 100644
--- a/src/include/ddes/dms/dms_api.h
+++ b/src/include/ddes/dms/dms_api.h
@@ -156,6 +156,12 @@ typedef enum en_drc_res_type {
     DRC_RES_LOCK_ITEM_TYPE,
 } drc_res_type_e;
 
+typedef enum en_dms_session {
+    DMS_SESSION_NORMAL = 0,     // can not access DRC when DRC is inaccessible
+    DMS_SESSION_REFORM = 1,     // can access DRC when DRC is inaccessible
+    DMS_SESSION_RECOVER = 2,    // can access DRC when DRC is inaccessible, buf if no owner, should set in recovery
+} dms_session_e;
+
 #define DMS_RESID_SIZE  32
 #define DMS_DRID_SIZE   sizeof(dms_drid_t)
 
@@ -183,8 +189,7 @@ typedef struct st_dms_xmap_ctx {
 typedef struct st_dms_context {
     unsigned int inst_id;   // current instance id
     unsigned int sess_id;   // current session id
-    unsigned int sess_rcy;  // request page: recovery session flag
-
+    dms_session_e sess_type;  // request page: recovery session flag
     void *db_handle;
     unsigned char is_try;
     unsigned char type;
diff --git a/src/include/ddes/dms/ss_common_attr.h b/src/include/ddes/dms/ss_common_attr.h
index ea064bd54..711162c36 100644
--- a/src/include/ddes/dms/ss_common_attr.h
+++ b/src/include/ddes/dms/ss_common_attr.h
@@ -158,8 +158,5 @@ typedef enum SSReformType {
     DMS_REFORM_TYPE_FOR_MAINTAIN
 } SSReformType;
 
-#define DMS_SESSION_NORMAL 0
-#define DMS_SESSION_IN_REFORM 1
-#define DMS_SESSION_IN_RECOVERY 2
 
 #endif