From 71cb30cc58e156a42712e003a2bf1afb2afb5ce0 Mon Sep 17 00:00:00 2001
From: chengshiwen <chengshiwen0103@gmail.com>
Date: Thu, 11 Jul 2024 18:05:08 +0800
Subject: [PATCH] fix nil pointer dereference in marshal binary of join cluster
 response #15

---
 coordinator/rpc.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/coordinator/rpc.go b/coordinator/rpc.go
index bf95d97..d8ef1ef 100644
--- a/coordinator/rpc.go
+++ b/coordinator/rpc.go
@@ -1326,10 +1326,12 @@ type JoinClusterResponse struct {
 
 func (r *JoinClusterResponse) MarshalBinary() ([]byte, error) {
 	var pb internal.JoinClusterResponse
-	pb.Node = &internal.NodeInfo{
-		ID:      proto.Uint64(r.Node.ID),
-		Addr:    proto.String(r.Node.Addr),
-		TCPAddr: proto.String(r.Node.TCPAddr),
+	if r.Node != nil {
+		pb.Node = &internal.NodeInfo{
+			ID:      proto.Uint64(r.Node.ID),
+			Addr:    proto.String(r.Node.Addr),
+			TCPAddr: proto.String(r.Node.TCPAddr),
+		}
 	}
 	if r.Err != nil {
 		pb.Err = proto.String(r.Err.Error())