diff --git a/tests/system-test/0-others/walRetention.py b/tests/system-test/0-others/walRetention.py
index 5257b7644a2ec9310ab4133e78cf0bfa8118dbd8..0fdeb84a5ba6fe12ad641efbfd359fd9e9a78f1a 100644
--- a/tests/system-test/0-others/walRetention.py
+++ b/tests/system-test/0-others/walRetention.py
@@ -147,13 +147,13 @@ class VNode :
         if self.lastVer != -1 and ret:
             # first wal file ignore
             if walFile.startVer == self.firstVer:
-                tdLog.info(f"  {walFile.pathFile} can del, but is first. snapVer={self.snapVer} firstVer={self.firstVer}")
+                tdLog.info(f"    can del {walFile.pathFile}, but is first. snapVer={self.snapVer} firstVer={self.firstVer}")
                 return False
 
             # ver in stay range 
             smallVer = self.snapVer - self.walStayRange -1
             if walFile.startVer >= smallVer:
-                tdLog.info(f"  {walFile.pathFile} can del, but range not arrived. snapVer={self.snapVer} smallVer={smallVer}")
+                tdLog.info(f"    can del {walFile.pathFile}, but range not arrived. snapVer={self.snapVer} smallVer={smallVer}")
                 return False
 
         return ret
@@ -161,9 +161,20 @@ class VNode :
     # get log size
     def getWalsSize(self):
         size = 0
+        lastSize = 0
+        max = -1
         for walFile in self.walFiles:
-            size += walFile.fsize
+            if self.canDelete(walFile) == False:
+                tdLog.info(f"  calc vnode size {walFile.pathFile} size={walFile.fsize} startVer={walFile.startVer}")
+                size += walFile.fsize
+                if max < walFile.startVer:
+                    max = walFile.startVer
+                    lastSize = walFile.fsize
+
         
+        if lastSize > 0:
+            tdLog.info(f" last file size need reduct . lastSize={lastSize}")
+            size -= lastSize
         return size
     
     # vnode
@@ -183,7 +194,7 @@ class VNode :
         delTs = delTsLine.timestamp()
         for walFile in self.walFiles:
             mt = datetime.fromtimestamp(walFile.mtime)
-            info = f" {walFile.pathFile} mt={mt} line={delTsLine}  start={walFile.startVer} snap={self.snapVer} end= {walFile.endVer}"
+            info = f" {walFile.pathFile} size={walFile.fsize} mt={mt} line={delTsLine}  start={walFile.startVer} snap={self.snapVer} end= {walFile.endVer}"
             tdLog.info(info) 
             if walFile.mtime < delTs and self.canDelete(walFile):
                 # wait a moment then check file exist
@@ -199,25 +210,16 @@ class VNode :
         if self.walSize == 0:
             return True
         
+        time.sleep(2)
         vnodeSize = self.getWalsSize()
-        if vnodeSize < self.walSize:
-            tdLog.info(f" wal size valid. {self.path} real = {vnodeSize} set = {self.walSize} ")
+        # need over 20%
+        if vnodeSize < self.walSize * 1.2:
+            tdLog.info(f" wal size valid. {self.path} real = {vnodeSize} set = {self.walSize}. allow over 20%.")
             return True
         
-        # check valid
-        tdLog.info(f" wal size over set. {self.path} real = {vnodeSize} set = {self.walSize} ")
-        for walFile in self.walFiles:
-            if self.canDelete(walFile):
-                # wait a moment then check file exist
-                time.sleep(1) 
-                if os.path.exists(walFile.pathFile):
-                    tdLog.exit(f"  wal file size over .\
-                           \n   wal file = {walFile.pathFile}\
-                           \n   snapVer  = {self.snapVer}\
-                           \n   real     = {vnodeSize} bytes\
-                           \n   set      = {self.walSize} bytes")
-                return False
-        return True
+        # check over
+        tdLog.exit(f" wal size over set. {self.path} real = {vnodeSize} set = {self.walSize} ")
+        return False
 
 
 # insert by async
diff --git a/tools/shell/src/shellWebsocket.c b/tools/shell/src/shellWebsocket.c
index af7f13c69c6088017f33cfabe3b81a17c9ab2587..ff2e5efdd49068dcaa0694ab825698fb3d66b863 100644
--- a/tools/shell/src/shellWebsocket.c
+++ b/tools/shell/src/shellWebsocket.c
@@ -278,7 +278,7 @@ void shellRunSingleCommandWebsocketImp(char *command) {
       }
       if (code == TSDB_CODE_WS_SEND_TIMEOUT
                 || code == TSDB_CODE_WS_RECV_TIMEOUT) {
-        fprintf(stderr, "Hint: use -t to increase the timeout in seconds\n");
+        fprintf(stderr, "Hint: use -T to increase the timeout in seconds\n");
       } else if (code == TSDB_CODE_WS_INTERNAL_ERRO
                     || code == TSDB_CODE_WS_CLOSED) {
         shell.ws_conn = NULL;
@@ -373,8 +373,6 @@ void shellRunSingleCommandWebsocketImp(char *command) {
     } else {
       printf("Query interrupted, %d row(s) in set (%.6fs)\n", numOfRows,
           (et - st)/1E6);
-      printf("Execute: %.2f ms Network: %.2f ms Total: %.2f ms\n",
-             execute_time, net_time, total_time);
     }
   }
   printf("\n");