From 3bd5748440de14b8f6bcfd858721b9099ece3583 Mon Sep 17 00:00:00 2001
From: Ti Chi Robot <ti-community-prow-bot@tidb.io>
Date: Wed, 28 Aug 2024 15:45:18 +0800
Subject: [PATCH] server: skip the engine key when match store label (#8486)
 (#8577)

close tikv/pd#8480

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
Signed-off-by: Ryan Leung <rleungx@gmail.com>

Co-authored-by: Ryan Leung <rleungx@gmail.com>
---
 server/api/label_test.go  | 33 +++++++++++++++++++++++++++++++--
 server/cluster/cluster.go |  3 +++
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/server/api/label_test.go b/server/api/label_test.go
index 9bcd40aac01..3de04720379 100644
--- a/server/api/label_test.go
+++ b/server/api/label_test.go
@@ -22,6 +22,7 @@ import (
 	"github.com/pingcap/kvproto/pkg/metapb"
 	"github.com/pingcap/kvproto/pkg/pdpb"
 	"github.com/stretchr/testify/suite"
+	"github.com/tikv/pd/pkg/core"
 	tu "github.com/tikv/pd/pkg/utils/testutil"
 	"github.com/tikv/pd/server"
 	"github.com/tikv/pd/server/config"
@@ -274,6 +275,30 @@ func (suite *strictlyLabelsStoreTestSuite) TestStoreMatch() {
 			valid:       false,
 			expectError: "key matching the label was not found",
 		},
+		{
+			store: &metapb.Store{
+				Id:      3,
+				Address: "tiflash1",
+				State:   metapb.StoreState_Up,
+				Labels: []*metapb.StoreLabel{
+					{
+						Key:   "zone",
+						Value: "us-west-1",
+					},
+					{
+						Key:   "disk",
+						Value: "ssd",
+					},
+					{
+						Key:   core.EngineKey,
+						Value: core.EngineTiFlash,
+					},
+				},
+				Version: "3.0.0",
+			},
+			valid:       true,
+			expectError: "placement rules is disabled",
+		},
 	}
 
 	for _, testCase := range testCases {
@@ -281,12 +306,16 @@ func (suite *strictlyLabelsStoreTestSuite) TestStoreMatch() {
 			Header: &pdpb.RequestHeader{ClusterId: suite.svr.ClusterID()},
 			Store: &metapb.Store{
 				Id:      testCase.store.Id,
-				Address: fmt.Sprintf("tikv%d", testCase.store.Id),
+				Address: testCase.store.Address,
 				State:   testCase.store.State,
 				Labels:  testCase.store.Labels,
 				Version: testCase.store.Version,
 			},
 		})
+		if testCase.store.Address == "tiflash1" {
+			suite.Contains(resp.GetHeader().GetError().String(), testCase.expectError)
+			continue
+		}
 		if testCase.valid {
 			suite.NoError(err)
 			suite.Nil(resp.GetHeader().GetError())
@@ -306,7 +335,7 @@ func (suite *strictlyLabelsStoreTestSuite) TestStoreMatch() {
 			Header: &pdpb.RequestHeader{ClusterId: suite.svr.ClusterID()},
 			Store: &metapb.Store{
 				Id:      testCase.store.Id,
-				Address: fmt.Sprintf("tikv%d", testCase.store.Id),
+				Address: testCase.store.Address,
 				State:   testCase.store.State,
 				Labels:  testCase.store.Labels,
 				Version: testCase.store.Version,
diff --git a/server/cluster/cluster.go b/server/cluster/cluster.go
index b15b03f125e..c11cead61f7 100644
--- a/server/cluster/cluster.go
+++ b/server/cluster/cluster.go
@@ -1475,6 +1475,9 @@ func (c *RaftCluster) checkStoreLabels(s *core.StoreInfo) error {
 	}
 	for _, label := range s.GetLabels() {
 		key := label.GetKey()
+		if key == core.EngineKey {
+			continue
+		}
 		if _, ok := keysSet[key]; !ok {
 			log.Warn("not found the key match with the store label",
 				zap.Stringer("store", s.GetMeta()),