From dfbe3c6f385672e01e0fcaa135c9477a2d96e4e9 Mon Sep 17 00:00:00 2001
From: Siyang Tang <82279870+TangSiyang2001@users.noreply.github.com>
Date: Sat, 14 Sep 2024 11:43:27 +0800
Subject: [PATCH] [enhancement](err-msg) Clarify error msg for forward queries
 (#40802)

---
 .../src/main/java/org/apache/doris/qe/MasterOpExecutor.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/MasterOpExecutor.java b/fe/fe-core/src/main/java/org/apache/doris/qe/MasterOpExecutor.java
index 9ff3acecdd9fe9..23f11f41173140 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/MasterOpExecutor.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/MasterOpExecutor.java
@@ -303,7 +303,9 @@ public static class ForwardToMasterException extends RuntimeException {
                         .put(TTransportException.UNKNOWN, "Unknown exception")
                         .put(TTransportException.NOT_OPEN, "Connection is not open")
                         .put(TTransportException.ALREADY_OPEN, "Connection has already opened up")
-                        .put(TTransportException.TIMED_OUT, "Connection timeout")
+                        .put(TTransportException.TIMED_OUT,
+                                "Connection timeout, please check network state or enlarge session variable:"
+                                        + "`query_timeout`/`insert_timeout`")
                         .put(TTransportException.END_OF_FILE, "EOF")
                         .put(TTransportException.CORRUPTED_DATA, "Corrupted data")
                         .build();