*: enable race for index_merge_read_test and increase shard for it (#…

…43567)

ref #43118

executor/BUILD.bazel

@@ -303,7 +303,6 @@ go_test(
         "index_advise_test.go",
         "index_lookup_join_test.go",
         "index_lookup_merge_join_test.go",
-        "index_merge_reader_test.go",
         "infoschema_cluster_table_test.go",
         "infoschema_reader_test.go",
         "insert_test.go",

executor/indexmergereadtest/BUILD.bazel

@@ -0,0 +1,26 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+
+go_test(
+    name = "indexmergereadtest_test",
+    timeout = "moderate",
+    srcs = [
+        "index_merge_reader_test.go",
+        "main_test.go",
+    ],
+    flaky = True,
+    race = "on",
+    shard_count = 22,
+    deps = [
+        "//config",
+        "//meta/autoid",
+        "//testkit",
+        "//testkit/testutil",
+        "//util",
+        "//util/memory",
+        "@com_github_pingcap_failpoint//:failpoint",
+        "@com_github_stretchr_testify//require",
+        "@com_github_tikv_client_go_v2//tikv",
+        "@org_golang_x_exp//slices",
+        "@org_uber_go_goleak//:goleak",
+    ],
+)

executor/index_merge_reader_test.go → executor/indexmergereadtest/index_merge_reader_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package executor_test
+package indexmergereadtest
 
 import (
 	"fmt"

executor/indexmergereadtest/main_test.go

@@ -0,0 +1,45 @@
+// Copyright 2023 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package indexmergereadtest
+
+import (
+	"testing"
+
+	"github.com/pingcap/tidb/config"
+	"github.com/pingcap/tidb/meta/autoid"
+	"github.com/tikv/client-go/v2/tikv"
+	"go.uber.org/goleak"
+)
+
+func TestMain(m *testing.M) {
+	autoid.SetStep(5000)
+	config.UpdateGlobal(func(conf *config.Config) {
+		conf.Instance.SlowThreshold = 30000 // 30s
+		conf.TiKVClient.AsyncCommit.SafeWindow = 0
+		conf.TiKVClient.AsyncCommit.AllowedClockDrift = 0
+		conf.Experimental.AllowsExpressionIndex = true
+	})
+	tikv.EnableFailpoints()
+
+	opts := []goleak.Option{
+		goleak.IgnoreTopFunction("github.com/golang/glog.(*loggingT).flushDaemon"),
+		goleak.IgnoreTopFunction("github.com/lestrrat-go/httprc.runFetchWorker"),
+		goleak.IgnoreTopFunction("go.etcd.io/etcd/client/pkg/v3/logutil.(*MergeLogger).outputLoop"),
+		goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"),
+		goleak.IgnoreTopFunction("gopkg.in/natefinch/lumberjack%2ev2.(*Logger).millRun"),
+		goleak.IgnoreTopFunction("github.com/tikv/client-go/v2/txnkv/transaction.keepAlive"),
+	}
+	goleak.VerifyTestMain(m, opts...)
+}