ddl: directly use BackendConfig rather than use lightning config

pkg/ddl/ingest/BUILD.bazel

@@ -31,7 +31,6 @@ go_library(
         "//pkg/lightning/checkpoints",
         "//pkg/lightning/common",
         "//pkg/lightning/config",
-        "//pkg/lightning/errormanager",
         "//pkg/lightning/log",
         "//pkg/meta",
         "//pkg/parser/model",

pkg/ddl/ingest/backend.go

@@ -29,7 +29,6 @@ import (
 	"github.com/pingcap/tidb/pkg/lightning/backend/local"
 	"github.com/pingcap/tidb/pkg/lightning/common"
 	lightning "github.com/pingcap/tidb/pkg/lightning/config"
-	"github.com/pingcap/tidb/pkg/lightning/errormanager"
 	"github.com/pingcap/tidb/pkg/lightning/log"
 	"github.com/pingcap/tidb/pkg/parser/model"
 	"github.com/pingcap/tidb/pkg/parser/mysql"
@@ -95,7 +94,7 @@ type litBackendCtx struct {
 	tbl      table.Table
 	backend  *local.Backend
 	ctx      context.Context
-	cfg      *lightning.Config
+	cfg      *local.BackendConfig
 	sysVars  map[string]string
 
 	flushing        atomic.Bool
@@ -148,8 +147,7 @@ func (bc *litBackendCtx) CollectRemoteDuplicateRows(indexID int64, tbl table.Tab
 }
 
 func (bc *litBackendCtx) collectRemoteDuplicateRows(indexID int64, tbl table.Table) error {
-	errorMgr := errormanager.New(nil, bc.cfg, log.Logger{Logger: logutil.Logger(bc.ctx)})
-	dupeController := bc.backend.GetDupeController(bc.cfg.TikvImporter.RangeConcurrency*2, errorMgr)
+	dupeController := bc.backend.GetDupeController(bc.cfg.WorkerConcurrency, nil)
 	hasDupe, err := dupeController.CollectRemoteDuplicateRows(bc.ctx, tbl, tbl.Meta().Name.L, &encode.SessionOptions{
 		SQLMode: mysql.ModeStrictAllTables,
 		SysVars: bc.sysVars,

pkg/ddl/ingest/backend_mgr.go

@@ -17,18 +17,19 @@ package ingest
 import (
 	"context"
 	"math"
+	"net"
 	"os"
 	"path/filepath"
 	"strconv"
 	"sync"
 	"time"
 
 	"github.com/pingcap/failpoint"
+	"github.com/pingcap/tidb/pkg/config"
 	ddllogutil "github.com/pingcap/tidb/pkg/ddl/logutil"
 	"github.com/pingcap/tidb/pkg/lightning/backend/local"
-	"github.com/pingcap/tidb/pkg/lightning/config"
+	"github.com/pingcap/tidb/pkg/lightning/common"
 	"github.com/pingcap/tidb/pkg/util/logutil"
-	kvutil "github.com/tikv/client-go/v2/util"
 	pd "github.com/tikv/pd/client"
 	clientv3 "go.etcd.io/etcd/client/v3"
 	"go.uber.org/atomic"
@@ -152,7 +153,7 @@ func (m *litBackendCtxMgr) Register(
 		return nil, err
 	}
 
-	bcCtx := newBackendContext(ctx, jobID, bd, cfg.lightning, defaultImportantVariables, m.memRoot, m.diskRoot, etcdClient)
+	bcCtx := newBackendContext(ctx, jobID, bd, cfg, defaultImportantVariables, m.memRoot, m.diskRoot, etcdClient)
 	m.backends.m[jobID] = bcCtx
 	m.memRoot.Consume(structSizeBackendCtx)
 	m.backends.mu.Unlock()
@@ -171,23 +172,26 @@ func (m *litBackendCtxMgr) EncodeJobSortPath(jobID int64) string {
 
 func createLocalBackend(
 	ctx context.Context,
-	cfg *litConfig,
+	cfg *local.BackendConfig,
 	pdSvcDiscovery pd.ServiceDiscovery,
 ) (*local.Backend, error) {
-	tls, err := cfg.lightning.ToTLS()
+	tidbCfg := config.GetGlobalConfig()
+	tls, err := common.NewTLS(
+		tidbCfg.Security.ClusterSSLCA,
+		tidbCfg.Security.ClusterSSLCert,
+		tidbCfg.Security.ClusterSSLKey,
+		net.JoinHostPort("127.0.0.1", strconv.Itoa(int(tidbCfg.Status.StatusPort))),
+		nil, nil, nil,
+	)
 	if err != nil {
 		logutil.Logger(ctx).Error(LitErrCreateBackendFail, zap.Error(err))
 		return nil, err
 	}
 
 	ddllogutil.DDLIngestLogger().Info("create local backend for adding index",
-		zap.String("sortDir", cfg.lightning.TikvImporter.SortedKVDir),
-		zap.String("keyspaceName", cfg.keyspaceName))
-	// We disable the switch TiKV mode feature for now,
-	// because the impact is not fully tested.
-	var raftKV2SwitchModeDuration time.Duration
-	backendConfig := local.NewBackendConfig(cfg.lightning, int(litRLimit), cfg.keyspaceName, cfg.resourceGroup, kvutil.ExplicitTypeDDL, raftKV2SwitchModeDuration)
-	return local.NewBackend(ctx, tls, backendConfig, pdSvcDiscovery)
+		zap.String("sortDir", cfg.LocalStoreDir),
+		zap.String("keyspaceName", cfg.KeyspaceName))
+	return local.NewBackend(ctx, tls, *cfg, pdSvcDiscovery)
 }
 
 const checkpointUpdateInterval = 10 * time.Minute
@@ -196,7 +200,7 @@ func newBackendContext(
 	ctx context.Context,
 	jobID int64,
 	be *local.Backend,
-	cfg *config.Config,
+	cfg *local.BackendConfig,
 	vars map[string]string,
 	memRoot MemRoot,
 	diskRoot DiskRoot,

pkg/ddl/ingest/config.go

@@ -17,78 +17,71 @@ package ingest
 import (
 	"context"
 	"net"
+	"runtime"
 	"strconv"
 	"sync/atomic"
 
 	tidb "github.com/pingcap/tidb/pkg/config"
 	"github.com/pingcap/tidb/pkg/lightning/backend"
+	"github.com/pingcap/tidb/pkg/lightning/backend/local"
 	"github.com/pingcap/tidb/pkg/lightning/checkpoints"
 	"github.com/pingcap/tidb/pkg/lightning/common"
 	lightning "github.com/pingcap/tidb/pkg/lightning/config"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/util/logutil"
 	"github.com/pingcap/tidb/pkg/util/size"
+	kvutil "github.com/tikv/client-go/v2/util"
 	"go.uber.org/zap"
 )
 
 // ImporterRangeConcurrencyForTest is only used for test.
 var ImporterRangeConcurrencyForTest *atomic.Int32
 
-// litConfig is the configuration for the lightning local backend used in DDL.
-type litConfig struct {
-	lightning     *lightning.Config
-	keyspaceName  string
-	isRaftKV2     bool
-	resourceGroup string
-}
-
 func genConfig(
 	ctx context.Context,
 	jobSortPath string,
 	memRoot MemRoot,
 	unique bool,
 	resourceGroup string,
 	concurrency int,
-) (*litConfig, error) {
-	tidbCfg := tidb.GetGlobalConfig()
-	cfg := lightning.NewConfig()
-	cfg.TikvImporter.Backend = lightning.BackendLocal
+) (*local.BackendConfig, error) {
+	cfg := &local.BackendConfig{
+		LocalStoreDir:     jobSortPath,
+		ResourceGroupName: resourceGroup,
+		MaxConnPerStore:   concurrency,
+		WorkerConcurrency: concurrency * 2,
+		KeyspaceName:      tidb.GetGlobalKeyspaceName(),
+		// We disable the switch TiKV mode feature for now, because the impact is not
+		// fully tested.
+		ShouldCheckWriteStall: true,
+
+		// lighting default values
+		CheckpointEnabled:           true,
+		BlockSize:                   lightning.DefaultBlockSize,
+		KVWriteBatchSize:            lightning.KVWriteBatchSize,
+		RegionSplitBatchSize:        lightning.DefaultRegionSplitBatchSize,
+		RegionSplitConcurrency:      runtime.GOMAXPROCS(0),
+		MemTableSize:                lightning.DefaultEngineMemCacheSize,
+		LocalWriterMemCacheSize:     lightning.DefaultLocalWriterMemCacheSize,
+		ShouldCheckTiKV:             true,
+		MaxOpenFiles:                int(litRLimit),
+		PausePDSchedulerScope:       lightning.PausePDSchedulerScopeTable,
+		TaskType:                    kvutil.ExplicitTypeDDL,
+		DisableAutomaticCompactions: true,
+	}
 	// Each backend will build a single dir in lightning dir.
-	cfg.TikvImporter.SortedKVDir = jobSortPath
-	cfg.TikvImporter.RangeConcurrency = concurrency
 	if ImporterRangeConcurrencyForTest != nil {
-		cfg.TikvImporter.RangeConcurrency = int(ImporterRangeConcurrencyForTest.Load())
-	}
-	err := cfg.AdjustForDDL()
-	if err != nil {
-		logutil.Logger(ctx).Warn(LitWarnConfigError, zap.Error(err))
-		return nil, err
+		cfg.WorkerConcurrency = int(ImporterRangeConcurrencyForTest.Load()) * 2
 	}
 	adjustImportMemory(ctx, memRoot, cfg)
-	cfg.Checkpoint.Enable = true
 	if unique {
-		cfg.Conflict.Strategy = lightning.ErrorOnDup
-		cfg.Conflict.Threshold = lightning.DefaultRecordDuplicateThreshold
+		cfg.DupeDetectEnabled = true
+		cfg.DuplicateDetectOpt = common.DupDetectOpt{ReportErrOnDup: true}
 	} else {
-		cfg.Conflict.Strategy = lightning.NoneOnDup
-	}
-	cfg.TiDB.Host = "127.0.0.1"
-	cfg.TiDB.StatusPort = int(tidbCfg.Status.StatusPort)
-	// Set TLS related information
-	cfg.Security.CAPath = tidbCfg.Security.ClusterSSLCA
-	cfg.Security.CertPath = tidbCfg.Security.ClusterSSLCert
-	cfg.Security.KeyPath = tidbCfg.Security.ClusterSSLKey
-	// in DDL scenario, we don't switch import mode
-	cfg.Cron.SwitchMode = lightning.Duration{Duration: 0}
-
-	c := &litConfig{
-		lightning:     cfg,
-		keyspaceName:  tidb.GetGlobalKeyspaceName(),
-		isRaftKV2:     false,
-		resourceGroup: resourceGroup,
+		cfg.DupeDetectEnabled = false
 	}
 
-	return c, nil
+	return cfg, nil
 }
 
 // CopReadBatchSize is the batch size of coprocessor read.
@@ -144,19 +137,19 @@ func generateLocalEngineConfig(ts uint64) *backend.EngineConfig {
 }
 
 // adjustImportMemory adjusts the lightning memory parameters according to the memory root's max limitation.
-func adjustImportMemory(ctx context.Context, memRoot MemRoot, cfg *lightning.Config) {
+func adjustImportMemory(ctx context.Context, memRoot MemRoot, cfg *local.BackendConfig) {
 	var scale int64
 	// Try aggressive resource usage successful.
 	if tryAggressiveMemory(ctx, memRoot, cfg) {
 		return
 	}
 
-	defaultMemSize := int64(cfg.TikvImporter.LocalWriterMemCacheSize) * int64(cfg.TikvImporter.RangeConcurrency)
-	defaultMemSize += 4 * int64(cfg.TikvImporter.EngineMemCacheSize)
+	defaultMemSize := int64(int(cfg.LocalWriterMemCacheSize) * cfg.WorkerConcurrency / 2)
+	defaultMemSize += 4 * int64(cfg.MemTableSize)
 	logutil.Logger(ctx).Info(LitInfoInitMemSetting,
-		zap.Int64("local writer memory cache size", int64(cfg.TikvImporter.LocalWriterMemCacheSize)),
-		zap.Int64("engine memory cache size", int64(cfg.TikvImporter.EngineMemCacheSize)),
-		zap.Int("range concurrency", cfg.TikvImporter.RangeConcurrency))
+		zap.Int64("local writer memory cache size", cfg.LocalWriterMemCacheSize),
+		zap.Int("engine memory cache size", cfg.MemTableSize),
+		zap.Int("worker concurrency", cfg.WorkerConcurrency))
 
 	maxLimit := memRoot.MaxMemoryQuota()
 	scale = defaultMemSize / maxLimit
@@ -165,28 +158,28 @@ func adjustImportMemory(ctx context.Context, memRoot MemRoot, cfg *lightning.Con
 		return
 	}
 
-	cfg.TikvImporter.LocalWriterMemCacheSize /= lightning.ByteSize(scale)
-	cfg.TikvImporter.EngineMemCacheSize /= lightning.ByteSize(scale)
+	cfg.LocalWriterMemCacheSize /= scale
+	cfg.MemTableSize /= int(scale)
 
 	logutil.Logger(ctx).Info(LitInfoChgMemSetting,
-		zap.Int64("local writer memory cache size", int64(cfg.TikvImporter.LocalWriterMemCacheSize)),
-		zap.Int64("engine memory cache size", int64(cfg.TikvImporter.EngineMemCacheSize)),
-		zap.Int("range concurrency", cfg.TikvImporter.RangeConcurrency))
+		zap.Int64("local writer memory cache size", cfg.LocalWriterMemCacheSize),
+		zap.Int("engine memory cache size", cfg.MemTableSize),
+		zap.Int("worker concurrency", cfg.WorkerConcurrency))
 }
 
 // tryAggressiveMemory lightning memory parameters according memory root's max limitation.
-func tryAggressiveMemory(ctx context.Context, memRoot MemRoot, cfg *lightning.Config) bool {
+func tryAggressiveMemory(ctx context.Context, memRoot MemRoot, cfg *local.BackendConfig) bool {
 	var defaultMemSize int64
-	defaultMemSize = int64(int(cfg.TikvImporter.LocalWriterMemCacheSize) * cfg.TikvImporter.RangeConcurrency)
-	defaultMemSize += int64(cfg.TikvImporter.EngineMemCacheSize)
+	defaultMemSize = int64(int(cfg.LocalWriterMemCacheSize) * cfg.WorkerConcurrency / 2)
+	defaultMemSize += int64(cfg.MemTableSize)
 
 	if (defaultMemSize + memRoot.CurrentUsage()) > memRoot.MaxMemoryQuota() {
 		return false
 	}
 	logutil.Logger(ctx).Info(LitInfoChgMemSetting,
-		zap.Int64("local writer memory cache size", int64(cfg.TikvImporter.LocalWriterMemCacheSize)),
-		zap.Int64("engine memory cache size", int64(cfg.TikvImporter.EngineMemCacheSize)),
-		zap.Int("range concurrency", cfg.TikvImporter.RangeConcurrency))
+		zap.Int64("local writer memory cache size", cfg.LocalWriterMemCacheSize),
+		zap.Int("engine memory cache size", cfg.MemTableSize),
+		zap.Int("worker concurrency", cfg.WorkerConcurrency))
 	return true
 }
 

pkg/ddl/ingest/engine.go

@@ -23,7 +23,6 @@ import (
 	"github.com/pingcap/tidb/pkg/lightning/backend"
 	"github.com/pingcap/tidb/pkg/lightning/backend/kv"
 	"github.com/pingcap/tidb/pkg/lightning/common"
-	"github.com/pingcap/tidb/pkg/lightning/config"
 	"github.com/pingcap/tidb/pkg/util/generic"
 	"github.com/pingcap/tidb/pkg/util/logutil"
 	"go.uber.org/zap"
@@ -55,7 +54,6 @@ type engineInfo struct {
 
 	uuid        uuid.UUID
 	cfg         *backend.EngineConfig
-	litCfg      *config.Config
 	writerCache generic.SyncMap[int, backend.EngineWriter]
 	memRoot     MemRoot
 	flushLock   *sync.RWMutex
@@ -67,7 +65,6 @@ func newEngineInfo(
 	jobID, indexID int64,
 	unique bool,
 	cfg *backend.EngineConfig,
-	litCfg *config.Config,
 	en *backend.OpenedEngine,
 	uuid uuid.UUID,
 	memRoot MemRoot,
@@ -78,7 +75,6 @@ func newEngineInfo(
 		indexID:      indexID,
 		unique:       unique,
 		cfg:          cfg,
-		litCfg:       litCfg,
 		openedEngine: en,
 		uuid:         uuid,
 		writerCache:  generic.NewSyncMap[int, backend.EngineWriter](4),

pkg/ddl/ingest/engine_mgr.go

@@ -79,7 +79,6 @@ func (bc *litBackendCtx) Register(indexIDs []int64, uniques []bool, tbl table.Ta
 			indexID,
 			uniques[i],
 			cfg,
-			bc.cfg,
 			openedEngine,
 			openedEngine.GetEngineUUID(),
 			bc.memRoot,