Caideyipi commented on code in PR #18084:
URL: https://github.com/apache/iotdb/pull/18084#discussion_r3519076939


##########
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/processor/twostage/exchange/receiver/TwoStageAggregateReceiver.java:
##########
@@ -46,6 +49,14 @@ public IoTDBSinkRequestVersion getVersion() {
   @Override
   public TPipeTransferResp receive(TPipeTransferReq req) {
     try {
+      final IClientSession clientSession = SESSION_MANAGER.getCurrSession();
+      if (!SESSION_MANAGER.checkLogin(clientSession)) {
+        return new TPipeTransferResp(
+            RpcUtils.getStatus(
+                TSStatusCode.NOT_LOGIN,
+                "Log in failed. Either you are not authorized or the session 
has timed out."));
+      }

Review Comment:
   Done, moved the two-stage receiver NOT_LOGIN message to DataNodePipeMessages 
with both English and Chinese i18n constants.



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