PragmaTwice commented on code in PR #1928:
URL: https://github.com/apache/kvrocks/pull/1928#discussion_r1420357404


##########
src/server/redis_connection.cc:
##########
@@ -393,7 +393,7 @@ void Connection::ExecuteCommands(std::deque<CommandTokens> 
*to_process_cmds) {
       s = srv_->cluster->CanExecByMySelf(attributes, cmd_tokens, this);
       if (!s.IsOK()) {
         if (is_multi_exec) multi_error_ = true;
-        Reply(redis::Error("ERR " + s.Msg()));
+        Reply(redis::Error(s.Msg()));

Review Comment:
   Hmmm. Then no problem to me.
   
   But for the general situation (we cannot control it for nested returned 
status right? it will cause huge maintanance effort), I recommend to add some 
custom error status and check it here.



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