From 7a7d9d33f2cb3f87e01aeb6cbe8240c532e56ed4 Mon Sep 17 00:00:00 2001
From: Yixuan Wang <wangyixuan@selectdb.com>
Date: Fri, 20 Mar 2026 18:26:32 +0800
Subject: [PATCH] [feat](proto) Add busy error code for MS (#61514)

---
 gensrc/proto/cloud.proto | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gensrc/proto/cloud.proto b/gensrc/proto/cloud.proto
index b60f330dcfeb4b..3e64b7a4b38b80 100644
--- a/gensrc/proto/cloud.proto
+++ b/gensrc/proto/cloud.proto
@@ -1799,7 +1799,10 @@ enum MetaServiceCode {
     STREAMING_JOB_PROGRESS_NOT_FOUND = 5006;
 
     // Rate limit
+    // Request is rejected by the RPC-specific QPS limiter.
     MAX_QPS_LIMIT = 6001;
+    // Request is rejected by the MetaService-wide rate limiter instead of a single RPC limiter.
+    MS_TOO_BUSY = 6002;
 
     ERR_ENCRYPT = 7001;
     ERR_DECPYPT = 7002;