优化HTTP缓存，主要是并发冲突、缓存写入不全等问题

cmd/edge-node/main.go

@@ -7,8 +7,11 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/nodes"
 	"github.com/iwind/TeaGo/Tea"
 	_ "github.com/iwind/TeaGo/bootstrap"
+	"github.com/iwind/TeaGo/logs"
 	"github.com/iwind/TeaGo/types"
 	"io/ioutil"
+	"net/http"
+	_ "net/http/pprof"
 	"os"
 	"syscall"
 )
@@ -17,7 +20,7 @@ func main() {
 	app := apps.NewAppCmd().
 		Version(teaconst.Version).
 		Product(teaconst.ProductName).
-		Usage(teaconst.ProcessName + " [-v|start|stop|restart|quit|test|service|daemon]")
+		Usage(teaconst.ProcessName + " [-v|start|stop|restart|status|quit|test|service|daemon|pprof]")
 
 	app.On("test", func() {
 		err := nodes.NewNode().Test()
@@ -57,6 +60,21 @@ func main() {
 			_ = process.Signal(syscall.SIGQUIT)
 		}
 	})
+	app.On("pprof", func() {
+		// TODO 自己指定端口
+		addr := "127.0.0.1:6060"
+		logs.Println("starting with pprof '" + addr + "'...")
+
+		go func() {
+			err := http.ListenAndServe(addr, nil)
+			if err != nil {
+				logs.Println("[error]" + err.Error())
+			}
+		}()
+
+		node := nodes.NewNode()
+		node.Start()
+	})
 	app.Run(func() {
 		node := nodes.NewNode()
 		node.Start()

internal/caches/list_memory.go

@@ -33,6 +33,16 @@ func (this *MemoryList) Reset() error {
 
 func (this *MemoryList) Add(hash string, item *Item) error {
 	this.locker.Lock()
+
+	// 先删除，为了可以正确触发统计
+	oldItem, ok := this.m[hash]
+	if ok {
+		if this.onRemove != nil {
+			this.onRemove(oldItem)
+		}
+	}
+
+	// 添加
 	if this.onAdd != nil {
 		this.onAdd(item)
 	}

internal/caches/list_memory_test.go

@@ -9,8 +9,8 @@ import (
 	"time"
 )
 
-func TestList_Add(t *testing.T) {
+func TestMemoryList_Add(t *testing.T) {
-	list := &MemoryList{}
+	list := NewMemoryList().(*MemoryList)
 	_ = list.Add("a", &Item{
 		Key:        "a1",
 		ExpiredAt:  time.Now().Unix() + 3600,
@@ -24,8 +24,8 @@ func TestList_Add(t *testing.T) {
 	t.Log(list.m)
 }
 
-func TestList_Remove(t *testing.T) {
+func TestMemoryList_Remove(t *testing.T) {
-	list := &MemoryList{}
+	list := NewMemoryList().(*MemoryList)
 	_ = list.Add("a", &Item{
 		Key:        "a1",
 		ExpiredAt:  time.Now().Unix() + 3600,
@@ -40,8 +40,8 @@ func TestList_Remove(t *testing.T) {
 	t.Log(list.m)
 }
 
-func TestList_Purge(t *testing.T) {
+func TestMemoryList_Purge(t *testing.T) {
-	list := &MemoryList{}
+	list := NewMemoryList().(*MemoryList)
 	_ = list.Add("a", &Item{
 		Key:        "a1",
 		ExpiredAt:  time.Now().Unix() + 3600,
@@ -69,8 +69,8 @@ func TestList_Purge(t *testing.T) {
 	t.Log(list.m)
 }
 
-func TestList_Stat(t *testing.T) {
+func TestMemoryList_Stat(t *testing.T) {
-	list := &MemoryList{}
+	list := NewMemoryList()
 	_ = list.Add("a", &Item{
 		Key:        "a1",
 		ExpiredAt:  time.Now().Unix() + 3600,
@@ -99,8 +99,8 @@ func TestList_Stat(t *testing.T) {
 	t.Log(result)
 }
 
-func TestList_FindKeysWithPrefix(t *testing.T) {
+func TestMemoryList_FindKeysWithPrefix(t *testing.T) {
-	list := &MemoryList{}
+	list := NewMemoryList()
 	before := time.Now()
 	for i := 0; i < 1_000_000; i++ {
 		key := "http://www.teaos.cn/hello" + strconv.Itoa(i/100000) + "/" + strconv.Itoa(i) + ".html"
@@ -121,3 +121,28 @@ func TestList_FindKeysWithPrefix(t *testing.T) {
 	t.Log(len(keys))
 	t.Log(time.Since(before).Seconds()*1000, "ms")
 }
+
+func TestMemoryList_GC(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	for i := 0; i < 1_000_000; i++ {
+		key := "http://www.teaos.cn/hello" + strconv.Itoa(i/100000) + "/" + strconv.Itoa(i) + ".html"
+		_ = list.Add(fmt.Sprintf("%d", xxhash.Sum64String(key)), &Item{
+			Key:        key,
+			ExpiredAt:  0,
+			BodySize:   0,
+			HeaderSize: 0,
+		})
+	}
+	time.Sleep(10 * time.Second)
+	t.Log("clean...", len(list.m))
+	_ = list.CleanAll()
+	before := time.Now()
+	//runtime.GC()
+	t.Log("gc cost:", time.Since(before).Seconds()*1000, "ms")
+
+	timeout := time.NewTimer(2 * time.Minute)
+	<-timeout.C
+	t.Log("2 minutes passed")
+
+	time.Sleep(30 * time.Minute)
+}

internal/caches/storage_file.go

@@ -52,6 +52,7 @@ type FileStorage struct {
 	totalSize     int64
 
 	list          ListInterface
+	writingKeyMap map[string]bool // key => bool
 	locker        sync.RWMutex
 	ticker        *utils.Ticker
 }
@@ -59,6 +60,7 @@ type FileStorage struct {
 func NewFileStorage(policy *serverconfigs.HTTPCachePolicy) *FileStorage {
 	return &FileStorage{
 		policy:        policy,
+		writingKeyMap: map[string]bool{},
 	}
 }
 
@@ -227,6 +229,25 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 		}
 	}
 
+	// 是否正在写入
+	var isWriting = false
+	this.locker.Lock()
+	_, ok := this.writingKeyMap[key]
+	this.locker.Unlock()
+	if ok {
+		return nil, ErrFileIsWriting
+	}
+	this.locker.Lock()
+	this.writingKeyMap[key] = true
+	this.locker.Unlock()
+	defer func() {
+		if !isWriting {
+			this.locker.Lock()
+			delete(this.writingKeyMap, key)
+			this.locker.Unlock()
+		}
+	}()
+
 	// 检查是否超出最大值
 	count, err := this.list.Count()
 	if err != nil {
@@ -264,6 +285,7 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 	if err != nil {
 		return nil, err
 	}
+	isWriting = true
 
 	isOk := false
 	removeOnFailure := true
@@ -348,7 +370,11 @@ func (this *FileStorage) OpenWriter(key string, expiredAt int64, status int) (Wr
 
 	isOk = true
 
-	return NewFileWriter(writer, key, expiredAt), nil
+	return NewFileWriter(writer, key, expiredAt, func() {
+		this.locker.Lock()
+		delete(this.writingKeyMap, key)
+		this.locker.Unlock()
+	}), nil
 }
 
 // AddToList 添加到List

internal/caches/storage_memory.go

@@ -20,6 +20,10 @@ type MemoryItem struct {
 	IsDone      bool
 }
 
+func (this *MemoryItem) IsExpired() bool {
+	return this.ExpiredAt < utils.UnixTime()
+}
+
 type MemoryStorage struct {
 	policy        *serverconfigs.HTTPCachePolicy
 	list          ListInterface
@@ -28,6 +32,7 @@ type MemoryStorage struct {
 	ticker        *utils.Ticker
 	purgeDuration time.Duration
 	totalSize     int64
+	writingKeyMap map[string]bool // key => bool
 }
 
 func NewMemoryStorage(policy *serverconfigs.HTTPCachePolicy) *MemoryStorage {
@@ -36,6 +41,7 @@ func NewMemoryStorage(policy *serverconfigs.HTTPCachePolicy) *MemoryStorage {
 		list:          NewMemoryList(),
 		locker:        &sync.RWMutex{},
 		valuesMap:     map[uint64]*MemoryItem{},
+		writingKeyMap: map[string]bool{},
 	}
 }
 
@@ -91,6 +97,29 @@ func (this *MemoryStorage) OpenReader(key string) (Reader, error) {
 
 // OpenWriter 打开缓存写入器等待写入
 func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int) (Writer, error) {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	// 是否正在写入
+	var isWriting = false
+	_, ok := this.writingKeyMap[key]
+	if ok {
+		return nil, ErrFileIsWriting
+	}
+	this.writingKeyMap[key] = true
+	defer func() {
+		if !isWriting {
+			delete(this.writingKeyMap, key)
+		}
+	}()
+
+	// 检查是否过期
+	hash := this.hash(key)
+	item, ok := this.valuesMap[hash]
+	if ok && !item.IsExpired() {
+		return nil, ErrFileIsWriting
+	}
+
 	// 检查是否超出最大值
 	totalKeys, err := this.list.Count()
 	if err != nil {
@@ -101,16 +130,21 @@ func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int) (
 	}
 	capacityBytes := this.memoryCapacityBytes()
 	if capacityBytes > 0 && capacityBytes <= this.totalSize {
-		return nil, errors.New("write memory cache failed: over memory size, real size: " + strconv.FormatInt(this.totalSize, 10) + " bytes")
+		return nil, errors.New("write memory cache failed: over memory size: " + strconv.FormatInt(capacityBytes, 10) + ", current size: " + strconv.FormatInt(this.totalSize, 10) + " bytes")
 	}
 
 	// 先删除
-	err = this.Delete(key)
+	err = this.deleteWithoutKey(key)
 	if err != nil {
 		return nil, err
 	}
 
-	return NewMemoryWriter(this.valuesMap, key, expiredAt, status, this.locker), nil
+	isWriting = true
+	return NewMemoryWriter(this.valuesMap, key, expiredAt, status, this.locker, func() {
+		this.locker.Lock()
+		delete(this.writingKeyMap, key)
+		this.locker.Unlock()
+	}), nil
 }
 
 // Delete 删除某个键值对应的缓存
@@ -235,3 +269,10 @@ func (this *MemoryStorage) memoryCapacityBytes() int64 {
 	}
 	return c1
 }
+
+func (this *MemoryStorage) deleteWithoutKey(key string) error {
+	hash := this.hash(key)
+	delete(this.valuesMap, hash)
+	_ = this.list.Remove(fmt.Sprintf("%d", hash))
+	return nil
+}

internal/caches/writer_file.go

@@ -14,17 +14,19 @@ type FileWriter struct {
 	headerSize int64
 	bodySize   int64
 	expiredAt  int64
+	endFunc    func()
 }
 
-func NewFileWriter(rawWriter *os.File, key string, expiredAt int64) *FileWriter {
+func NewFileWriter(rawWriter *os.File, key string, expiredAt int64, endFunc func()) *FileWriter {
 	return &FileWriter{
 		key:       key,
 		rawWriter: rawWriter,
 		expiredAt: expiredAt,
+		endFunc:   endFunc,
 	}
 }
 
-// 写入数据
+// WriteHeader 写入数据
 func (this *FileWriter) WriteHeader(data []byte) (n int, err error) {
 	n, err = this.rawWriter.Write(data)
 	this.headerSize += int64(n)
@@ -34,7 +36,7 @@ func (this *FileWriter) WriteHeader(data []byte) (n int, err error) {
 	return
 }
 
-// 写入Header长度数据
+// WriteHeaderLength 写入Header长度数据
 func (this *FileWriter) WriteHeaderLength(headerLength int) error {
 	bytes4 := make([]byte, 4)
 	binary.BigEndian.PutUint32(bytes4, uint32(headerLength))
@@ -51,7 +53,7 @@ func (this *FileWriter) WriteHeaderLength(headerLength int) error {
 	return nil
 }
 
-// 写入数据
+// Write 写入数据
 func (this *FileWriter) Write(data []byte) (n int, err error) {
 	n, err = this.rawWriter.Write(data)
 	this.bodySize += int64(n)
@@ -61,7 +63,7 @@ func (this *FileWriter) Write(data []byte) (n int, err error) {
 	return
 }
 
-// 写入Body长度数据
+// WriteBodyLength 写入Body长度数据
 func (this *FileWriter) WriteBodyLength(bodyLength int64) error {
 	bytes8 := make([]byte, 8)
 	binary.BigEndian.PutUint64(bytes8, uint64(bodyLength))
@@ -78,8 +80,10 @@ func (this *FileWriter) WriteBodyLength(bodyLength int64) error {
 	return nil
 }
 
-// 关闭
+// Close 关闭
 func (this *FileWriter) Close() error {
+	defer this.endFunc()
+
 	err := this.WriteHeaderLength(types.Int(this.headerSize))
 	if err != nil {
 		return err
@@ -103,8 +107,10 @@ func (this *FileWriter) Close() error {
 	return err
 }
 
-// 丢弃
+// Discard 丢弃
 func (this *FileWriter) Discard() error {
+	defer this.endFunc()
+
 	_ = this.rawWriter.Close()
 
 	err := os.Remove(this.rawWriter.Name())
@@ -127,7 +133,7 @@ func (this *FileWriter) Key() string {
 	return this.key
 }
 
-// 内容类型
+// ItemType 获取内容类型
 func (this *FileWriter) ItemType() ItemType {
 	return ItemTypeFile
 }

internal/caches/writer_memory.go

@@ -16,9 +16,10 @@ type MemoryWriter struct {
 
 	hash    uint64
 	item    *MemoryItem
+	endFunc func()
 }
 
-func NewMemoryWriter(m map[uint64]*MemoryItem, key string, expiredAt int64, status int, locker *sync.RWMutex) *MemoryWriter {
+func NewMemoryWriter(m map[uint64]*MemoryItem, key string, expiredAt int64, status int, locker *sync.RWMutex, endFunc func()) *MemoryWriter {
 	w := &MemoryWriter{
 		m:         m,
 		key:       key,
@@ -29,37 +30,42 @@ func NewMemoryWriter(m map[uint64]*MemoryItem, key string, expiredAt int64, stat
 			Status:    status,
 		},
 		status:  status,
+		endFunc: endFunc,
 	}
 	w.hash = w.calculateHash(key)
 
 	return w
 }
 
-// 写入数据
+// WriteHeader 写入数据
 func (this *MemoryWriter) WriteHeader(data []byte) (n int, err error) {
 	this.headerSize += int64(len(data))
 	this.item.HeaderValue = append(this.item.HeaderValue, data...)
 	return len(data), nil
 }
 
-// 写入数据
+// Write 写入数据
 func (this *MemoryWriter) Write(data []byte) (n int, err error) {
 	this.bodySize += int64(len(data))
 	this.item.BodyValue = append(this.item.BodyValue, data...)
 	return len(data), nil
 }
 
-// 数据尺寸
+// HeaderSize 数据尺寸
 func (this *MemoryWriter) HeaderSize() int64 {
 	return this.headerSize
 }
 
+// BodySize 主体内容尺寸
 func (this *MemoryWriter) BodySize() int64 {
 	return this.bodySize
 }
 
-// 关闭
+// Close 关闭
 func (this *MemoryWriter) Close() error {
+	// 需要在Locker之外
+	defer this.endFunc()
+
 	if this.item == nil {
 		return nil
 	}
@@ -72,25 +78,28 @@ func (this *MemoryWriter) Close() error {
 	return nil
 }
 
-// 丢弃
+// Discard 丢弃
 func (this *MemoryWriter) Discard() error {
+	// 需要在Locker之外
+	defer this.endFunc()
+	
 	this.locker.Lock()
 	delete(this.m, this.hash)
 	this.locker.Unlock()
 	return nil
 }
 
-// Key
+// Key 获取Key
 func (this *MemoryWriter) Key() string {
 	return this.key
 }
 
-// 过期时间
+// ExpiredAt 过期时间
 func (this *MemoryWriter) ExpiredAt() int64 {
 	return this.expiredAt
 }
 
-// 内容类型
+// ItemType 内容类型
 func (this *MemoryWriter) ItemType() ItemType {
 	return ItemTypeMemory
 }

internal/nodes/http_request.go

@@ -1142,6 +1142,12 @@ func (this *HTTPRequest) canIgnore(err error) bool {
 		return true
 	}
 
+	// 网络错误
+	_, ok := err.(*net.OpError)
+	if ok {
+		return true
+	}
+
 	// 客户端主动取消
 	if err == context.Canceled {
 		return true

internal/nodes/http_request_cache.go

@@ -108,7 +108,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 		}
 
 		if !this.canIgnore(err) {
-			remotelogs.Warn("REQUEST_CACHE", "read from cache failed: "+err.Error())
+			remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
 		}
 		return
 	}
@@ -142,7 +142,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 	})
 	if err != nil {
 		if !this.canIgnore(err) {
-			remotelogs.Warn("REQUEST_CACHE", "read from cache failed: "+err.Error())
+			remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
 		}
 		return
 	}
@@ -234,7 +234,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 					return true
 				}
 				if !this.canIgnore(err) {
-					remotelogs.Warn("REQUEST_CACHE", "read from cache failed: "+err.Error())
+					remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
 				}
 				return
 			}
@@ -277,7 +277,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 				})
 				if err != nil {
 					if !this.canIgnore(err) {
-						remotelogs.Warn("REQUEST_CACHE", "read from cache failed: "+err.Error())
+						remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
 					}
 					return true
 				}
@@ -300,7 +300,7 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 			})
 			if err != nil {
 				if !this.canIgnore(err) {
-					remotelogs.Warn("REQUEST_CACHE", "read from cache failed: "+err.Error())
+					remotelogs.Warn("HTTP_REQUEST_CACHE", "read from cache failed: "+err.Error())
 				}
 				return
 			}

internal/nodes/http_request_fastcgi.go

@@ -200,14 +200,20 @@ func (this *HTTPRequest) doFastcgi() (shouldStop bool) {
 	_, err = io.CopyBuffer(this.writer, resp.Body, buf)
 	pool.Put(buf)
 
-	err1 := resp.Body.Close()
+	closeErr := resp.Body.Close()
-	if err1 != nil {
+	if closeErr != nil {
-		remotelogs.Warn("REQUEST_FASTCGI", err1.Error())
+		remotelogs.Warn("HTTP_REQUEST_FASTCGI", closeErr.Error())
 	}
 
 	if err != nil && err != io.EOF {
-		remotelogs.Warn("REQUEST_FASTCGI", err.Error())
+		remotelogs.Warn("HTTP_REQUEST_FASTCGI", err.Error())
 		this.addError(err)
 	}
+
+	// 是否成功结束
+	if err == nil && closeErr == nil {
+		this.writer.SetOk()
+	}
+
 	return
 }

internal/nodes/http_request_page.go

@@ -1,6 +1,7 @@
 package nodes
 
 import (
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/logs"
 	"io"
@@ -50,7 +51,11 @@ func (this *HTTPRequest) doPage(status int) (shouldStop bool) {
 				_, err = io.CopyBuffer(this.writer, fp, buf)
 				bytePool1k.Put(buf)
 				if err != nil {
-					logs.Error(err)
+					if !this.canIgnore(err) {
+						remotelogs.Warn("HTTP_REQUEST_PAGE", "write to client failed: "+err.Error())
+					}
+				} else {
+					this.writer.SetOk()
 				}
 				err = fp.Close()
 				if err != nil {

internal/nodes/http_request_reverse_proxy.go

@@ -35,7 +35,7 @@ func (this *HTTPRequest) doReverseProxy() {
 	origin := this.reverseProxy.NextOrigin(requestCall)
 	if origin == nil {
 		err := errors.New(this.requestPath() + ": no available backends for reverse proxy")
-		remotelogs.Error("REQUEST_REVERSE_PROXY", err.Error())
+		remotelogs.Error("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 		this.write502(err)
 		return
 	}
@@ -55,7 +55,7 @@ func (this *HTTPRequest) doReverseProxy() {
 	// 处理Scheme
 	if origin.Addr == nil {
 		err := errors.New(this.requestPath() + ": origin '" + strconv.FormatInt(origin.Id, 10) + "' does not has a address")
-		remotelogs.Error("REQUEST_REVERSE_PROXY", err.Error())
+		remotelogs.Error("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 		this.write502(err)
 		return
 	}
@@ -142,7 +142,7 @@ func (this *HTTPRequest) doReverseProxy() {
 	// 获取请求客户端
 	client, err := SharedHTTPClientPool.Client(this.RawReq, origin, originAddr)
 	if err != nil {
-		remotelogs.Error("REQUEST_REVERSE_PROXY", err.Error())
+		remotelogs.Error("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 		this.write502(err)
 		return
 	}
@@ -162,7 +162,7 @@ func (this *HTTPRequest) doReverseProxy() {
 			// TODO 如果超过最大失败次数，则下线
 
 			this.write502(err)
-			remotelogs.Println("REQUEST_REVERSE_PROXY", this.RawReq.URL.String()+"': "+err.Error())
+			remotelogs.Println("HTTP_REQUEST_REVERSE_PROXY", this.RawReq.URL.String()+"': "+err.Error())
 		} else {
 			// 是否为客户端方面的错误
 			isClientError := false
@@ -189,7 +189,7 @@ func (this *HTTPRequest) doReverseProxy() {
 		if this.doWAFResponse(resp) {
 			err = resp.Body.Close()
 			if err != nil {
-				remotelogs.Warn("REQUEST_REVERSE_PROXY", err.Error())
+				remotelogs.Warn("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 			}
 			return
 		}
@@ -201,7 +201,7 @@ func (this *HTTPRequest) doReverseProxy() {
 	if len(this.web.Pages) > 0 && this.doPage(resp.StatusCode) {
 		err = resp.Body.Close()
 		if err != nil {
-			remotelogs.Warn("REQUEST_REVERSE_PROXY", err.Error())
+			remotelogs.Warn("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 		}
 		return
 	}
@@ -254,17 +254,22 @@ func (this *HTTPRequest) doReverseProxy() {
 	}
 	pool.Put(buf)
 
-	err1 := resp.Body.Close()
+	closeErr := resp.Body.Close()
-	if err1 != nil {
+	if closeErr != nil {
 		if !this.canIgnore(err) {
-			remotelogs.Warn("REQUEST_REVERSE_PROXY", err1.Error())
+			remotelogs.Warn("HTTP_REQUEST_REVERSE_PROXY", closeErr.Error())
 		}
 	}
 
 	if err != nil && err != io.EOF {
 		if !this.canIgnore(err) {
-			remotelogs.Warn("REQUEST_REVERSE_PROXY", err.Error())
+			remotelogs.Warn("HTTP_REQUEST_REVERSE_PROXY", err.Error())
 			this.addError(err)
 		}
 	}
+
+	// 是否成功结束
+	if err == nil && closeErr == nil {
+		this.writer.SetOk()
+	}
 }

internal/nodes/http_request_root.go

@@ -382,6 +382,9 @@ func (this *HTTPRequest) doRoot() (isBreak bool) {
 		}
 	}
 
+	// 设置成功
+	this.writer.SetOk()
+
 	return true
 }
 

internal/nodes/http_request_shutdown.go

@@ -1,6 +1,7 @@
 package nodes
 
 import (
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/logs"
 	"io"
@@ -65,8 +66,16 @@ func (this *HTTPRequest) doShutdown() {
 	buf := bytePool1k.Get()
 	_, err = io.CopyBuffer(this.writer, fp, buf)
 	bytePool1k.Put(buf)
+	if err != nil {
+		if !this.canIgnore(err) {
+			remotelogs.Warn("HTTP_REQUEST_SHUTDOWN", "write to client failed: "+err.Error())
+		}
+	} else {
+		this.writer.SetOk()
+	}
+
 	err = fp.Close()
 	if err != nil {
-		logs.Error(err)
+		remotelogs.Warn("HTTP_REQUEST_SHUTDOWN", "close file failed: "+err.Error())
 	}
 }

internal/nodes/http_request_url.go

@@ -2,6 +2,7 @@ package nodes
 
 import (
 	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"github.com/iwind/TeaGo/logs"
 	"io"
@@ -68,4 +69,12 @@ func (this *HTTPRequest) doURL(method string, url string, host string, statusCod
 	buf := pool.Get()
 	_, err = io.CopyBuffer(this.writer, resp.Body, buf)
 	pool.Put(buf)
+
+	if err != nil {
+		if !this.canIgnore(err) {
+			remotelogs.Warn("HTTP_REQUEST_URL", "write to client failed: "+err.Error())
+		}
+	} else {
+		this.writer.SetOk()
+	}
 }

internal/nodes/http_request_waf.go

@@ -70,7 +70,7 @@ func (this *HTTPRequest) checkWAFRequest(firewallPolicy *firewallconfigs.HTTPFir
 					for _, action := range actions {
 						goNext, err := action.DoHTTP(this.RawReq, this.RawWriter)
 						if err != nil {
-							remotelogs.Error("REQUEST", "do action '"+err.Error()+"' failed: "+err.Error())
+							remotelogs.Error("HTTP_REQUEST_WAF", "do action '"+err.Error()+"' failed: "+err.Error())
 							return true, false
 						}
 						if !goNext {
@@ -101,7 +101,7 @@ func (this *HTTPRequest) checkWAFRequest(firewallPolicy *firewallconfigs.HTTPFir
 				for _, remoteAddr := range remoteAddrs {
 					result, err := iplibrary.SharedLibrary.Lookup(remoteAddr)
 					if err != nil {
-						remotelogs.Error("REQUEST", "iplibrary lookup failed: "+err.Error())
+						remotelogs.Error("HTTP_REQUEST_WAF", "iplibrary lookup failed: "+err.Error())
 					} else if result != nil {
 						// 检查国家级别封禁
 						if len(regionConfig.DenyCountryIds) > 0 && len(result.Country) > 0 {
@@ -147,7 +147,7 @@ func (this *HTTPRequest) checkWAFRequest(firewallPolicy *firewallconfigs.HTTPFir
 	}
 	goNext, ruleGroup, ruleSet, err := w.MatchRequest(this.RawReq, this.writer)
 	if err != nil {
-		remotelogs.Error("REQUEST", this.rawURI+": "+err.Error())
+		remotelogs.Error("HTTP_REQUEST_WAF", this.rawURI+": "+err.Error())
 		return
 	}
 
@@ -181,7 +181,7 @@ func (this *HTTPRequest) doWAFResponse(resp *http.Response) (blocked bool) {
 
 	goNext, ruleGroup, ruleSet, err := w.MatchResponse(this.RawReq, resp, this.writer)
 	if err != nil {
-		remotelogs.Error("REQUEST", this.rawURI+": "+err.Error())
+		remotelogs.Error("HTTP_REQUEST_WAF", this.rawURI+": "+err.Error())
 		return
 	}
 

internal/nodes/http_writer.go

@@ -14,7 +14,7 @@ import (
 	"strings"
 )
 
-// 响应Writer
+// HTTPWriter 响应Writer
 type HTTPWriter struct {
 	req    *HTTPRequest
 	writer http.ResponseWriter
@@ -32,9 +32,11 @@ type HTTPWriter struct {
 
 	cacheWriter  caches.Writer // 缓存写入
 	cacheStorage caches.StorageInterface
+
+	isOk bool // 是否完全成功
 }
 
-// 包装对象
+// NewHTTPWriter 包装对象
 func NewHTTPWriter(req *HTTPRequest, httpResponseWriter http.ResponseWriter) *HTTPWriter {
 	return &HTTPWriter{
 		req:    req,
@@ -42,7 +44,7 @@ func NewHTTPWriter(req *HTTPRequest, httpResponseWriter http.ResponseWriter) *HT
 	}
 }
 
-// 重置
+// Reset 重置
 func (this *HTTPWriter) Reset(httpResponseWriter http.ResponseWriter) {
 	this.writer = httpResponseWriter
 
@@ -58,12 +60,12 @@ func (this *HTTPWriter) Reset(httpResponseWriter http.ResponseWriter) {
 	this.gzipBodyWriter = nil
 }
 
-// 设置Gzip
+// Gzip 设置Gzip
 func (this *HTTPWriter) Gzip(config *serverconfigs.HTTPGzipConfig) {
 	this.gzipConfig = config
 }
 
-// 准备输出
+// Prepare 准备输出
 func (this *HTTPWriter) Prepare(size int64, status int) {
 	this.statusCode = status
 
@@ -71,12 +73,12 @@ func (this *HTTPWriter) Prepare(size int64, status int) {
 	this.prepareCache(size)
 }
 
-// 包装前的原始的Writer
+// Raw 包装前的原始的Writer
 func (this *HTTPWriter) Raw() http.ResponseWriter {
 	return this.writer
 }
 
-// 获取Header
+// Header 获取Header
 func (this *HTTPWriter) Header() http.Header {
 	if this.writer == nil {
 		return http.Header{}
@@ -84,7 +86,7 @@ func (this *HTTPWriter) Header() http.Header {
 	return this.writer.Header()
 }
 
-// 添加一组Header
+// AddHeaders 添加一组Header
 func (this *HTTPWriter) AddHeaders(header http.Header) {
 	if this.writer == nil {
 		return
@@ -99,7 +101,7 @@ func (this *HTTPWriter) AddHeaders(header http.Header) {
 	}
 }
 
-// 写入数据
+// Write 写入数据
 func (this *HTTPWriter) Write(data []byte) (n int, err error) {
 	if this.writer != nil {
 		if this.gzipWriter != nil {
@@ -115,8 +117,9 @@ func (this *HTTPWriter) Write(data []byte) (n int, err error) {
 		if this.cacheWriter != nil {
 			_, err = this.cacheWriter.Write(data)
 			if err != nil {
+				_ = this.cacheWriter.Discard()
 				this.cacheWriter = nil
-				remotelogs.Error("REQUEST_WRITER", "write cache failed: "+err.Error())
+				remotelogs.Error("HTTP_WRITER", "write cache failed: "+err.Error())
 			}
 		}
 	} else {
@@ -128,7 +131,7 @@ func (this *HTTPWriter) Write(data []byte) (n int, err error) {
 		if this.gzipBodyWriter != nil {
 			_, err := this.gzipBodyWriter.Write(data)
 			if err != nil {
-				remotelogs.Error("REQUEST_WRITER", err.Error())
+				remotelogs.Error("HTTP_WRITER", err.Error())
 			}
 		} else {
 			this.body = append(this.body, data...)
@@ -137,17 +140,17 @@ func (this *HTTPWriter) Write(data []byte) (n int, err error) {
 	return
 }
 
-// 写入字符串
+// WriteString 写入字符串
 func (this *HTTPWriter) WriteString(s string) (n int, err error) {
 	return this.Write([]byte(s))
 }
 
-// 读取发送的字节数
+// SentBodyBytes 读取发送的字节数
 func (this *HTTPWriter) SentBodyBytes() int64 {
 	return this.sentBodyBytes
 }
 
-// 写入状态码
+// WriteHeader 写入状态码
 func (this *HTTPWriter) WriteHeader(statusCode int) {
 	if this.writer != nil {
 		this.writer.WriteHeader(statusCode)
@@ -155,7 +158,7 @@ func (this *HTTPWriter) WriteHeader(statusCode int) {
 	this.statusCode = statusCode
 }
 
-// 读取状态码
+// StatusCode 读取状态码
 func (this *HTTPWriter) StatusCode() int {
 	if this.statusCode == 0 {
 		return http.StatusOK
@@ -163,22 +166,22 @@ func (this *HTTPWriter) StatusCode() int {
 	return this.statusCode
 }
 
-// 设置拷贝Body数据
+// SetBodyCopying 设置拷贝Body数据
 func (this *HTTPWriter) SetBodyCopying(b bool) {
 	this.bodyCopying = b
 }
 
-// 判断是否在拷贝Body数据
+// BodyIsCopying 判断是否在拷贝Body数据
 func (this *HTTPWriter) BodyIsCopying() bool {
 	return this.bodyCopying
 }
 
-// 读取拷贝的Body数据
+// Body 读取拷贝的Body数据
 func (this *HTTPWriter) Body() []byte {
 	return this.body
 }
 
-// 读取Header二进制数据
+// HeaderData 读取Header二进制数据
 func (this *HTTPWriter) HeaderData() []byte {
 	if this.writer == nil {
 		return nil
@@ -200,7 +203,12 @@ func (this *HTTPWriter) HeaderData() []byte {
 	return writer.Bytes()
 }
 
-// 关闭
+// SetOk 设置成功
+func (this *HTTPWriter) SetOk() {
+	this.isOk = true
+}
+
+// Close 关闭
 func (this *HTTPWriter) Close() {
 	// gzip writer
 	if this.gzipWriter != nil {
@@ -214,6 +222,7 @@ func (this *HTTPWriter) Close() {
 
 	// cache writer
 	if this.cacheWriter != nil {
+		if this.isOk {
 			err := this.cacheWriter.Close()
 			if err == nil {
 				this.cacheStorage.AddToList(&caches.Item{
@@ -224,10 +233,13 @@ func (this *HTTPWriter) Close() {
 					BodySize:   this.cacheWriter.BodySize(),
 				})
 			}
+		} else {
+			_ = this.cacheWriter.Discard()
+		}
 	}
 }
 
-// Hijack
+// Hijack Hijack
 func (this *HTTPWriter) Hijack() (conn net.Conn, buf *bufio.ReadWriter, err error) {
 	hijack, ok := this.writer.(http.Hijacker)
 	if ok {
@@ -236,7 +248,7 @@ func (this *HTTPWriter) Hijack() (conn net.Conn, buf *bufio.ReadWriter, err erro
 	return
 }
 
-// Flush
+// Flush Flush
 func (this *HTTPWriter) Flush() {
 	flusher, ok := this.writer.(http.Flusher)
 	if ok {
@@ -284,7 +296,7 @@ func (this *HTTPWriter) prepareGzip(size int64) {
 	var err error = nil
 	this.gzipWriter, err = gzip.NewWriterLevel(this.writer, int(this.gzipConfig.Level))
 	if err != nil {
-		remotelogs.Error("REQUEST_WRITER", err.Error())
+		remotelogs.Error("HTTP_WRITER", err.Error())
 		return
 	}
 
@@ -293,7 +305,7 @@ func (this *HTTPWriter) prepareGzip(size int64) {
 		this.gzipBodyBuffer = bytes.NewBuffer([]byte{})
 		this.gzipBodyWriter, err = gzip.NewWriterLevel(this.gzipBodyBuffer, int(this.gzipConfig.Level))
 		if err != nil {
-			remotelogs.Error("REQUEST_WRITER", err.Error())
+			remotelogs.Error("HTTP_WRITER", err.Error())
 		}
 	}
 
@@ -376,7 +388,7 @@ func (this *HTTPWriter) prepareCache(size int64) {
 	cacheWriter, err := storage.OpenWriter(this.req.cacheKey, expiredAt, this.StatusCode())
 	if err != nil {
 		if err != caches.ErrFileIsWriting {
-			remotelogs.Error("REQUEST_WRITER", "write cache failed: "+err.Error())
+			remotelogs.Error("HTTP_WRITER", "write cache failed: "+err.Error())
 		}
 		return
 	}
@@ -390,7 +402,8 @@ func (this *HTTPWriter) prepareCache(size int64) {
 		for _, v1 := range v {
 			_, err = cacheWriter.WriteHeader([]byte(k + ":" + v1 + "\n"))
 			if err != nil {
-				remotelogs.Error("REQUEST_WRITER", "write cache failed: "+err.Error())
+				remotelogs.Error("HTTP_WRITER", "write cache failed: "+err.Error())
+				_ = this.cacheWriter.Discard()
 				this.cacheWriter = nil
 				return
 			}

internal/nodes/listener_http.go

@@ -4,6 +4,8 @@ import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"golang.org/x/net/http2"
+	"io"
+	"log"
 	"net"
 	"net/http"
 	"strings"
@@ -11,6 +13,8 @@ import (
 	"time"
 )
 
+var httpErrorLogger = log.New(io.Discard, "", 0)
+
 type HTTPListener struct {
 	BaseListener
 
@@ -37,6 +41,7 @@ func (this *HTTPListener) Serve() error {
 		Handler:           handler,
 		ReadHeaderTimeout: 3 * time.Second, // TODO 改成可以配置
 		IdleTimeout:       2 * time.Minute, // TODO 改成可以配置
+		ErrorLog:          httpErrorLogger,
 		ConnState: func(conn net.Conn, state http.ConnState) {
 			switch state {
 			case http.StateNew: