master: fix panic when etcd member not started (#970)

Co-authored-by: lance6716 <[email protected]>
pingcap · Sep 1, 2020 · 714ac6d · 714ac6d
1 parent d31ab59
commit 714ac6d
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/dm/master/server.go b/dm/master/server.go
@@ -1867,9 +1867,13 @@ func (s *Server) listMemberMaster(ctx context.Context, names []string) (*pb.Memb
 		}
 
 		alive := true
-		_, err := client.Get(etcdMember.ClientURLs[0] + "/health")
-		if err != nil {
+		if len(etcdMember.ClientURLs) == 0 {
 			alive = false
+		} else {
+			_, err := client.Get(etcdMember.ClientURLs[0] + "/health")
+			if err != nil {
+				alive = false
+			}
 		}
 
 		masters = append(masters, &pb.MasterInfo{