improve log

Signed-off-by: Ryan Leung <rleungx@gmail.com>

go.mod

@@ -145,7 +145,7 @@ require (
 	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
 	github.com/petermattis/goid v0.0.0-20211229010228-4d14c490ee36 // indirect
 	github.com/pingcap/tipb v0.0.0-20220718022156-3e2483c20a9e // indirect
-	github.com/pkg/errors v0.9.1
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect

pkg/gc/safepoint_v2.go

@@ -18,10 +18,10 @@ import (
 	"context"
 	"time"
 
+	"github.com/pingcap/errors"
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/kvproto/pkg/keyspacepb"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	"github.com/tikv/pd/pkg/keyspace"
 	"github.com/tikv/pd/pkg/slice"
 	"github.com/tikv/pd/pkg/storage/endpoint"

pkg/mcs/scheduling/server/server.go

@@ -155,6 +155,7 @@ func (s *Server) updateAPIServerMemberLoop() {
 		ticker = time.NewTicker(100 * time.Millisecond)
 	})
 	defer ticker.Stop()
+	var curLeader uint64
 	for {
 		select {
 		case <-ctx.Done():
@@ -180,7 +181,10 @@ func (s *Server) updateAPIServerMemberLoop() {
 					log.Info("failed to get delegate client", errs.ZapError(err))
 				}
 				if s.cluster.SwitchAPIServerLeader(pdpb.NewPDClient(cc)) {
-					log.Info("switch leader", zap.String("leader-id", fmt.Sprintf("%x", ep.ID)), zap.String("endpoint", ep.ClientURLs[0]))
+					if status.Leader != curLeader {
+						log.Info("switch leader", zap.String("leader-id", fmt.Sprintf("%x", ep.ID)), zap.String("endpoint", ep.ClientURLs[0]))
+					}
+					curLeader = ep.ID
 					break
 				}
 			}

pkg/mcs/tso/server/config.go

@@ -22,8 +22,8 @@ import (
 	"time"
 
 	"github.com/BurntSushi/toml"
+	"github.com/pingcap/errors"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	"github.com/spf13/pflag"
 	"github.com/tikv/pd/pkg/mcs/utils"
 	"github.com/tikv/pd/pkg/tso"

pkg/mcs/tso/server/grpc_service.go

@@ -22,9 +22,9 @@ import (
 	"strings"
 	"time"
 
+	"github.com/pingcap/errors"
 	"github.com/pingcap/kvproto/pkg/tsopb"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	bs "github.com/tikv/pd/pkg/basicserver"
 	"github.com/tikv/pd/pkg/mcs/registry"
 	"github.com/tikv/pd/pkg/utils/apiutil"

pkg/mcs/utils/util.go

@@ -24,10 +24,10 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/pingcap/errors"
 	"github.com/pingcap/kvproto/pkg/diagnosticspb"
 	"github.com/pingcap/kvproto/pkg/pdpb"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/soheilhy/cmux"

pkg/mock/mockcluster/mockcluster.go

@@ -21,10 +21,10 @@ import (
 	"time"
 
 	"github.com/docker/go-units"
+	"github.com/pingcap/errors"
 	"github.com/pingcap/kvproto/pkg/metapb"
 	"github.com/pingcap/kvproto/pkg/pdpb"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	"github.com/tikv/pd/pkg/core"
 	"github.com/tikv/pd/pkg/core/storelimit"
 	"github.com/tikv/pd/pkg/errs"

pkg/schedule/config/config.go

@@ -17,8 +17,8 @@ package config
 import (
 	"time"
 
+	"github.com/pingcap/errors"
 	"github.com/pingcap/kvproto/pkg/metapb"
-	"github.com/pkg/errors"
 	"github.com/tikv/pd/pkg/core/storelimit"
 	"github.com/tikv/pd/pkg/utils/configutil"
 	"github.com/tikv/pd/pkg/utils/syncutil"

pkg/utils/configutil/configutil.go

@@ -21,7 +21,7 @@ import (
 	"time"
 
 	"github.com/BurntSushi/toml"
-	"github.com/pkg/errors"
+	"github.com/pingcap/errors"
 	"github.com/spf13/pflag"
 	"github.com/tikv/pd/pkg/encryption"
 	"github.com/tikv/pd/pkg/utils/grpcutil"

pkg/utils/grpcutil/grpcutil.go

@@ -21,8 +21,8 @@ import (
 	"net/url"
 	"time"
 
+	"github.com/pingcap/errors"
 	"github.com/pingcap/log"
-	"github.com/pkg/errors"
 	"github.com/tikv/pd/pkg/errs"
 	"github.com/tikv/pd/pkg/utils/logutil"
 	"go.etcd.io/etcd/pkg/transport"

server/apiv2/handlers/tso_keyspace_group.go

@@ -21,7 +21,7 @@ import (
 	"sync"
 
 	"github.com/gin-gonic/gin"
-	"github.com/pkg/errors"
+	"github.com/pingcap/errors"
 	"github.com/tikv/pd/pkg/errs"
 	"github.com/tikv/pd/pkg/mcs/utils"
 	"github.com/tikv/pd/pkg/slice"

tests/scheduling_cluster.go

@@ -21,6 +21,7 @@ import (
 	"github.com/stretchr/testify/require"
 	scheduling "github.com/tikv/pd/pkg/mcs/scheduling/server"
 	sc "github.com/tikv/pd/pkg/mcs/scheduling/server/config"
+	"github.com/tikv/pd/pkg/schedule/schedulers"
 	"github.com/tikv/pd/pkg/utils/tempurl"
 	"github.com/tikv/pd/pkg/utils/testutil"
 )
@@ -36,6 +37,7 @@ type TestSchedulingCluster struct {
 
 // NewTestSchedulingCluster creates a new scheduling test cluster.
 func NewTestSchedulingCluster(ctx context.Context, initialServerCount int, backendEndpoints string) (tc *TestSchedulingCluster, err error) {
+	schedulers.Register()
 	tc = &TestSchedulingCluster{
 		ctx:              ctx,
 		backendEndpoints: backendEndpoints,

tools/pd-api-bench/Makefile

@@ -0,0 +1,34 @@
+# Copyright 2023 TiKV Project Authors.
+#
+# 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.
+
+ROOT_PATH := ../..
+GO_TOOLS_BIN_PATH := $(ROOT_PATH)/.tools/bin
+PATH := $(GO_TOOLS_BIN_PATH):$(PATH)
+SHELL := env PATH='$(PATH)' GOBIN='$(GO_TOOLS_BIN_PATH)' $(shell which bash)
+
+install-tools:
+	cd $(ROOT_PATH) && $(MAKE) install-tools
+
+static: install-tools
+	@ echo "gofmt ..."
+	@ gofmt -s -l -d . 2>&1 | awk '{ print } END { if (NR > 0) { exit 1 } }'
+	@ echo "golangci-lint ..."
+	@ golangci-lint run -c $(ROOT_PATH)/.golangci.yml --verbose ./... --allow-parallel-runners
+	@ echo "revive ..."
+	@ revive -formatter friendly -config $(ROOT_PATH)/revive.toml ./...
+
+tidy:
+	@ go mod tidy
+	git diff go.mod go.sum | cat
+	git diff --quiet go.mod go.sum

tools/pd-api-bench/cases/cases.go

@@ -29,8 +29,10 @@ import (
 )
 
 var (
+	// PDAddress is the address of PD server.
 	PDAddress string
-	Debug     bool
+	// Debug is the flag to print the output of api response for debug.
+	Debug bool
 )
 
 var (
@@ -39,6 +41,7 @@ var (
 	storesID    []uint64
 )
 
+// InitCluster initializes the cluster.
 func InitCluster(ctx context.Context, cli pd.Client, httpClit *http.Client) error {
 	req, _ := http.NewRequestWithContext(ctx, http.MethodGet,
 		PDAddress+"/pd/api/v1/stats/region?start_key=&end_key=&count", nil)
@@ -67,6 +70,7 @@ func InitCluster(ctx context.Context, cli pd.Client, httpClit *http.Client) erro
 	return nil
 }
 
+// Case is the interface for all cases.
 type Case interface {
 	Name() string
 	SetQPS(int64)
@@ -101,24 +105,28 @@ func (c *baseCase) GetBurst() int64 {
 	return c.burst
 }
 
+// GRPCCase is the interface for all gRPC cases.
 type GRPCCase interface {
 	Case
 	Unary(context.Context, pd.Client) error
 }
 
+// GRPCCaseMap is the map for all gRPC cases.
 var GRPCCaseMap = map[string]GRPCCase{
 	"GetRegion":   newGetRegion(),
 	"GetStore":    newGetStore(),
 	"GetStores":   newGetStores(),
 	"ScanRegions": newScanRegions(),
 }
 
+// HTTPCase is the interface for all HTTP cases.
 type HTTPCase interface {
 	Case
 	Do(context.Context, *http.Client) error
 	Params(string)
 }
 
+// HTTPCaseMap is the map for all HTTP cases.
 var HTTPCaseMap = map[string]HTTPCase{
 	"GetRegionStatus":  newRegionStats(),
 	"GetMinResolvedTS": newMinResolvedTS(),
@@ -319,6 +327,7 @@ func (c *getStores) Unary(ctx context.Context, cli pd.Client) error {
 	return nil
 }
 
+// nolint
 func generateKeyForSimulator(id int, keyLen int) []byte {
 	k := make([]byte, keyLen)
 	copy(k, fmt.Sprintf("%010d", id))

tools/pd-api-bench/go.mod

@@ -73,7 +73,6 @@ require (
 	github.com/pingcap/kvproto v0.0.0-20230905082026-5336fac26974 // indirect
 	github.com/pingcap/log v1.1.1-0.20221110025148-ca232912c9f3 // indirect
 	github.com/pingcap/sysutil v1.0.1-0.20230407040306-fb007c5aff21 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b // indirect
 	github.com/prometheus/client_golang v1.11.1 // indirect

tools/pd-api-bench/main.go

@@ -160,7 +160,7 @@ func main() {
 	}
 	httpClis := make([]*http.Client, 0)
 	for i := 0; i < *client; i++ {
-		httpClis = append(httpClis, newHttpClient())
+		httpClis = append(httpClis, newHTTPClient())
 	}
 	err = cases.InitCluster(ctx, pdClis[0], httpClis[0])
 	if err != nil {
@@ -248,8 +248,8 @@ func exit(code int) {
 	os.Exit(code)
 }
 
-// newHttpClient returns an HTTP(s) client.
-func newHttpClient() *http.Client {
+// newHTTPClient returns an HTTP(s) client.
+func newHTTPClient() *http.Client {
 	// defaultTimeout for non-context requests.
 	const defaultTimeout = 30 * time.Second
 	cli := &http.Client{Timeout: defaultTimeout}

tools/pd-tso-bench/Makefile

@@ -0,0 +1,34 @@
+# Copyright 2023 TiKV Project Authors.
+#
+# 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.
+
+ROOT_PATH := ../..
+GO_TOOLS_BIN_PATH := $(ROOT_PATH)/.tools/bin
+PATH := $(GO_TOOLS_BIN_PATH):$(PATH)
+SHELL := env PATH='$(PATH)' GOBIN='$(GO_TOOLS_BIN_PATH)' $(shell which bash)
+
+install-tools:
+	cd $(ROOT_PATH) && $(MAKE) install-tools
+
+static: install-tools
+	@ echo "gofmt ..."
+	@ gofmt -s -l -d . 2>&1 | awk '{ print } END { if (NR > 0) { exit 1 } }'
+	@ echo "golangci-lint ..."
+	@ golangci-lint run -c $(ROOT_PATH)/.golangci.yml --verbose ./... --allow-parallel-runners
+	@ echo "revive ..."
+	@ revive -formatter friendly -config $(ROOT_PATH)/revive.toml ./...
+
+tidy:
+	@ go mod tidy
+	git diff go.mod go.sum | cat
+	git diff --quiet go.mod go.sum