Revert "revert PR #1903 avoid http error: superfluous response.WriteHeader"

This reverts commit ac71117e
This commit is contained in:
Konstantin Lebedev 2021-05-20 11:45:21 +05:00
parent 87a32bfef4
commit 03d1199d5f
9 changed files with 45 additions and 20 deletions

View file

@ -110,7 +110,7 @@ func runFilerCat(cmd *Command, args []string) bool {
filerCat.filerClient = client
return filer.StreamContent(&filerCat, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)
return filer.StreamContent(&filerCat, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64, false)
})

View file

@ -52,7 +52,7 @@ func (f *Filer) maybeReloadFilerConfiguration(event *filer_pb.SubscribeMetadataR
func (f *Filer) readEntry(chunks []*filer_pb.FileChunk) ([]byte, error) {
var buf bytes.Buffer
err := StreamContent(f.MasterClient, &buf, chunks, 0, math.MaxInt64)
err := StreamContent(f.MasterClient, &buf, chunks, 0, math.MaxInt64, false)
if err != nil {
return nil, err
}

View file

@ -27,7 +27,7 @@ func ReadEntry(masterClient *wdclient.MasterClient, filerClient filer_pb.Seaweed
return err
}
return StreamContent(masterClient, byteBuffer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)
return StreamContent(masterClient, byteBuffer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64, false)
}

View file

@ -3,6 +3,7 @@ package filer
import (
"bytes"
"fmt"
"golang.org/x/sync/errgroup"
"io"
"math"
"strings"
@ -13,7 +14,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/wdclient"
)
func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, chunks []*filer_pb.FileChunk, offset int64, size int64) error {
func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, chunks []*filer_pb.FileChunk, offset int64, size int64, isCheck bool) error {
glog.V(9).Infof("start to stream content for chunks: %+v\n", chunks)
chunkViews := ViewFromChunks(masterClient.GetLookupFileIdFunction(), chunks, offset, size)
@ -33,6 +34,17 @@ func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, c
fileId2Url[chunkView.FileId] = urlStrings
}
if isCheck {
// Pre-check all chunkViews urls
gErr := new(errgroup.Group)
CheckAllChunkViews(chunkViews, &fileId2Url, gErr)
if err := gErr.Wait(); err != nil {
glog.Errorf("check all chunks: %v", err)
return fmt.Errorf("check all chunks: %v", err)
}
return nil
}
for _, chunkView := range chunkViews {
urlStrings := fileId2Url[chunkView.FileId]
@ -41,6 +53,7 @@ func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, c
glog.Errorf("read chunk: %v", err)
return fmt.Errorf("read chunk: %v", err)
}
_, err = w.Write(data)
if err != nil {
glog.Errorf("write chunk: %v", err)
@ -52,6 +65,17 @@ func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, c
}
func CheckAllChunkViews(chunkViews []*ChunkView, fileId2Url *map[string][]string, gErr *errgroup.Group) {
for _, chunkView := range chunkViews {
urlStrings := (*fileId2Url)[chunkView.FileId]
glog.V(9).Infof("Check chunk: %+v\n url: %v", chunkView, urlStrings)
gErr.Go(func() error {
_, err := retriedFetchChunkData(urlStrings, chunkView.CipherKey, chunkView.IsGzipped, chunkView.IsFullChunk(), chunkView.Offset, int(chunkView.Size))
return err
})
}
}
// ---------------- ReadAllReader ----------------------------------
func ReadAll(masterClient *wdclient.MasterClient, chunks []*filer_pb.FileChunk) ([]byte, error) {

View file

@ -326,7 +326,11 @@ func passThroughResponse(proxyResponse *http.Response, w http.ResponseWriter) {
for k, v := range proxyResponse.Header {
w.Header()[k] = v
}
w.WriteHeader(proxyResponse.StatusCode)
if proxyResponse.Header.Get("Content-Range") != "" && proxyResponse.StatusCode == 200 {
w.WriteHeader(http.StatusPartialContent)
} else {
w.WriteHeader(proxyResponse.StatusCode)
}
io.Copy(w, proxyResponse.Body)
}

View file

@ -232,12 +232,12 @@ func adjustHeaderContentDisposition(w http.ResponseWriter, r *http.Request, file
}
}
func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64, mimeType string, writeFn func(writer io.Writer, offset int64, size int64, httpStatusCode int) error) {
func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64, mimeType string, writeFn func(writer io.Writer, offset int64, size int64) error) {
rangeReq := r.Header.Get("Range")
if rangeReq == "" {
w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
if err := writeFn(w, 0, totalSize, 0); err != nil {
if err := writeFn(w, 0, totalSize); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
@ -277,7 +277,7 @@ func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64
w.Header().Set("Content-Length", strconv.FormatInt(ra.length, 10))
w.Header().Set("Content-Range", ra.contentRange(totalSize))
err = writeFn(w, ra.start, ra.length, http.StatusPartialContent)
err = writeFn(w, ra.start, ra.length)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
@ -305,7 +305,7 @@ func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64
pw.CloseWithError(e)
return
}
if e = writeFn(part, ra.start, ra.length, 0); e != nil {
if e = writeFn(part, ra.start, ra.length); e != nil {
pw.CloseWithError(e)
return
}

View file

@ -131,6 +131,9 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
if r.Method == "HEAD" {
w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64) error {
return filer.StreamContent(fs.filer.MasterClient, writer, entry.Chunks, offset, size, true)
})
return
}
@ -150,10 +153,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
}
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64, httpStatusCode int) error {
if httpStatusCode != 0 {
w.WriteHeader(httpStatusCode)
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64) error {
if offset+size <= int64(len(entry.Content)) {
_, err := writer.Write(entry.Content[offset : offset+size])
if err != nil {
@ -161,7 +161,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
}
return err
}
return filer.StreamContent(fs.filer.MasterClient, writer, entry.Chunks, offset, size)
return filer.StreamContent(fs.filer.MasterClient, writer, entry.Chunks, offset, size, false)
})
}

View file

@ -27,7 +27,7 @@ var fileNameEscaper = strings.NewReplacer(`\`, `\\`, `"`, `\"`)
func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
// println(r.Method + " " + r.URL.Path)
glog.V(9).Info(r.Method + " " + r.URL.Path + " " + r.Header.Get("Range"))
stats.VolumeServerRequestCounter.WithLabelValues("get").Inc()
start := time.Now()
@ -261,13 +261,10 @@ func writeResponseContent(filename, mimeType string, rs io.ReadSeeker, w http.Re
return nil
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64, httpStatusCode int) error {
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64) error {
if _, e = rs.Seek(offset, 0); e != nil {
return e
}
if httpStatusCode != 0 {
w.WriteHeader(httpStatusCode)
}
_, e = io.CopyN(writer, rs, size)
return e
})

View file

@ -52,7 +52,7 @@ func (c *commandFsCat) Do(args []string, commandEnv *CommandEnv, writer io.Write
return err
}
return filer.StreamContent(commandEnv.MasterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)
return filer.StreamContent(commandEnv.MasterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64, false)
})