[SQLITE]使用事务批量提交一些缓存相关任务

internal/caches/list_file.go

@@ -102,7 +102,7 @@ func (this *FileList) Add(hash string, item *Item) error {
 		return nil
 	}
 
-	err := db.Add(hash, item)
+	err := db.AddAsync(hash, item)
 	if err != nil {
 		return err
 	}
@@ -266,7 +266,7 @@ func (this *FileList) Stat(check func(hash string) bool) (*Stat, error) {
 		// 这里不设置过期时间、不使用 check 函数，目的是让查询更快速一些
 		_ = check
 
-		row := db.statStmt.QueryRow()
+		var row = db.statStmt.QueryRow()
 		if row.Err() != nil {
 			return nil, row.Err()
 		}
@@ -357,7 +357,7 @@ func (this *FileList) remove(hash string) (notFound bool, err error) {
 		return false, err
 	}
 
-	_, err = db.deleteByHashStmt.Exec(hash)
+	err = db.DeleteAsync(hash)
 	if err != nil {
 		return false, db.WrapError(err)
 	}

internal/caches/list_file_db.go

@@ -6,6 +6,8 @@ import (
 	"database/sql"
 	"errors"
 	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
 	"github.com/iwind/TeaGo/types"
@@ -21,6 +23,8 @@ type FileListDB struct {
 	readDB  *dbs.DB
 	writeDB *dbs.DB
 
+	writeBatch *dbs.Batch
+
 	itemsTableName string
 	hitsTableName  string
 
@@ -31,9 +35,15 @@ type FileListDB struct {
 
 	// cacheItems
 	existsByHashStmt *dbs.Stmt // 根据hash检查是否存在
+
 	insertStmt *dbs.Stmt // 写入数据
+	insertSQL  string
+
 	selectByHashStmt *dbs.Stmt // 使用hash查询数据
+
 	deleteByHashStmt *dbs.Stmt // 根据hash删除数据
+	deleteByHashSQL  string
+
 	statStmt           *dbs.Stmt // 统计
 	purgeStmt          *dbs.Stmt // 清理
 	deleteAllStmt      *dbs.Stmt // 删除所有数据
@@ -69,8 +79,17 @@ func (this *FileListDB) Open(dbPath string) error {
 	}**/
 
 	this.writeDB = dbs.NewDB(writeDB)
+	this.writeBatch = dbs.NewBatch(writeDB, 4)
+	this.writeBatch.OnFail(func(err error) {
+		remotelogs.Warn("LIST_FILE_DB", "run batch failed: "+err.Error())
+	})
+
+	goman.New(func() {
+		this.writeBatch.Exec()
+	})
 
 	if teaconst.EnableDBStat {
+		this.writeBatch.EnableStat(true)
 		this.writeDB.EnableStat(true)
 	}
 
@@ -119,7 +138,8 @@ func (this *FileListDB) Init() error {
 		return err
 	}
 
-	this.insertStmt, err = this.writeDB.Prepare(`INSERT INTO "` + this.itemsTableName + `" ("hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "host", "serverId", "createdAt") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`)
+	this.insertSQL = `INSERT INTO "` + this.itemsTableName + `" ("hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "host", "serverId", "createdAt") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+	this.insertStmt, err = this.writeDB.Prepare(this.insertSQL)
 	if err != nil {
 		return err
 	}
@@ -129,7 +149,8 @@ func (this *FileListDB) Init() error {
 		return err
 	}
 
-	this.deleteByHashStmt, err = this.writeDB.Prepare(`DELETE FROM "` + this.itemsTableName + `" WHERE "hash"=?`)
+	this.deleteByHashSQL = `DELETE FROM "` + this.itemsTableName + `" WHERE "hash"=?`
+	this.deleteByHashStmt, err = this.writeDB.Prepare(this.deleteByHashSQL)
 	if err != nil {
 		return err
 	}
@@ -181,12 +202,21 @@ func (this *FileListDB) Total() int64 {
 	return this.total
 }
 
-func (this *FileListDB) Add(hash string, item *Item) error {
+func (this *FileListDB) AddAsync(hash string, item *Item) error {
+	if item.StaleAt == 0 {
+		item.StaleAt = item.ExpiredAt
+	}
+
+	this.writeBatch.Add(this.insertSQL, hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, utils.UnixTime())
+	return nil
+
+}
+
+func (this *FileListDB) AddSync(hash string, item *Item) error {
 	if item.StaleAt == 0 {
 		item.StaleAt = item.ExpiredAt
 	}
 
-	// 放入队列
 	_, err := this.insertStmt.Exec(hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, utils.UnixTime())
 	if err != nil {
 		return this.WrapError(err)
@@ -195,6 +225,19 @@ func (this *FileListDB) Add(hash string, item *Item) error {
 	return nil
 }
 
+func (this *FileListDB) DeleteAsync(hash string) error {
+	this.writeBatch.Add(this.deleteByHashSQL, hash)
+	return nil
+}
+
+func (this *FileListDB) DeleteSync(hash string) error {
+	_, err := this.deleteByHashStmt.Exec(hash)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func (this *FileListDB) ListExpiredItems(count int) (hashList []string, err error) {
 	if !this.isReady {
 		return nil, nil
@@ -349,6 +392,11 @@ func (this *FileListDB) Close() error {
 		}
 	}
 
+
+	if this.writeBatch != nil {
+		this.writeBatch.Close()
+	}
+
 	if len(errStrings) == 0 {
 		return nil
 	}

internal/caches/list_file_test.go

@@ -69,8 +69,8 @@ func TestFileList_Add_Many(t *testing.T) {
 		_ = list.Close()
 	}()
 
-	before := time.Now()
+	var before = time.Now()
-	for i := 0; i < 100_000; i++ {
+	for i := 0; i < 10_000_000; i++ {
 		u := "https://edge.teaos.cn/123456" + strconv.Itoa(i)
 		_ = list.Add(stringutil.Md5(u), &caches.Item{
 			Key:        u,
@@ -290,12 +290,12 @@ func TestFileList_Stat(t *testing.T) {
 }
 
 func TestFileList_Count(t *testing.T) {
-	list := caches.NewFileList(Tea.Root + "/data")
+	var list = caches.NewFileList(Tea.Root + "/data")
 	err := list.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	before := time.Now()
+	var before = time.Now()
 	count, err := list.Count()
 	if err != nil {
 		t.Fatal(err)
@@ -361,12 +361,26 @@ func TestFileList_UpgradeV3(t *testing.T) {
 	t.Log("ok")
 }
 
+func TestFileList_HashList(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	prefixes, err := list.(*caches.FileList).FindAllPrefixes()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(len(prefixes))
+}
+
 func BenchmarkFileList_Exist(b *testing.B) {
 	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
 	err := list.Init()
 	if err != nil {
 		b.Fatal(err)
 	}
+	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		_, _ = list.Exist("f0eb5b87e0b0041f3917002c0707475f" + types.String(i))
 	}

internal/utils/dbs/batch.go

@@ -0,0 +1,149 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package dbs
+
+import (
+	"database/sql"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"time"
+)
+
+type batchItem struct {
+	query string
+	args  []any
+}
+
+type Batch struct {
+	db *sql.DB
+	n  int
+
+	enableStat bool
+
+	onFail func(err error)
+
+	queue chan *batchItem
+	close chan bool
+
+	isClosed bool
+}
+
+func NewBatch(db *sql.DB, n int) *Batch {
+	return &Batch{
+		db:    db,
+		n:     n,
+		queue: make(chan *batchItem),
+		close: make(chan bool, 1),
+	}
+}
+
+func (this *Batch) EnableStat(b bool) {
+	this.enableStat = b
+}
+
+func (this *Batch) OnFail(callback func(err error)) {
+	this.onFail = callback
+}
+
+func (this *Batch) Add(query string, args ...any) {
+	this.queue <- &batchItem{
+		query: query,
+		args:  args,
+	}
+}
+
+func (this *Batch) Exec() {
+	var n = this.n
+	if n <= 0 {
+		n = 4
+	}
+
+	var ticker = time.NewTicker(100 * time.Millisecond)
+	var count = 0
+	var lastTx *sql.Tx
+For:
+	for {
+		// closed
+		if this.isClosed {
+			return
+		}
+
+		select {
+		case item := <-this.queue:
+			if lastTx == nil {
+				lastTx = this.beginTx()
+				if lastTx == nil {
+					continue For
+				}
+			}
+
+			err := this.execItem(lastTx, item)
+			if err != nil {
+				this.processErr(item.query, err)
+			}
+
+			count++
+
+			if count == n {
+				count = 0
+				err = lastTx.Commit()
+				lastTx = nil
+				if err != nil {
+					this.processErr("commit", err)
+				}
+			}
+		case <-ticker.C:
+			if lastTx == nil || count == 0 {
+				continue For
+			}
+			count = 0
+			err := lastTx.Commit()
+			lastTx = nil
+			if err != nil {
+				this.processErr("commit", err)
+			}
+		case <-this.close:
+			// closed
+			return
+		}
+	}
+}
+
+func (this *Batch) Close() {
+	this.isClosed = true
+
+	select {
+	case this.close <- true:
+	default:
+
+	}
+}
+
+func (this *Batch) beginTx() *sql.Tx {
+	tx, err := this.db.Begin()
+	if err != nil {
+		this.processErr("begin transaction", err)
+		return nil
+	}
+	return tx
+}
+
+func (this *Batch) execItem(tx *sql.Tx, item *batchItem) error {
+	if this.enableStat {
+		defer SharedQueryStatManager.AddQuery(item.query).End()
+	}
+
+	_, err := tx.Exec(item.query, item.args...)
+	return err
+}
+
+func (this *Batch) processErr(prefix string, err error) {
+	if err == nil {
+		return
+	}
+
+	if this.onFail != nil {
+		this.onFail(err)
+	} else {
+		remotelogs.Error("SQLITE_BATCH", prefix+": "+err.Error())
+	}
+}

internal/utils/dbs/db.go

@@ -80,3 +80,7 @@ func (this *DB) Close() error {
 	events.Remove(fmt.Sprintf("db_%p", this))
 	return this.rawDB.Close()
 }
+
+func (this *DB) RawDB() *sql.DB {
+	return this.rawDB
+}