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fix data writes error when consecutive calls overlaps with previous writes
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parent
43ff60cb23
commit
75e749039b
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@ -9,6 +9,7 @@ import (
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"sync"
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)
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type ContinuousDirtyPages struct {
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@ -17,6 +18,7 @@ type ContinuousDirtyPages struct {
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Size int64
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Data []byte
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f *File
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lock sync.Mutex
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}
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func newDirtyPages(file *File) *ContinuousDirtyPages {
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@ -28,6 +30,9 @@ func newDirtyPages(file *File) *ContinuousDirtyPages {
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func (pages *ContinuousDirtyPages) AddPage(ctx context.Context, offset int64, data []byte) (chunks []*filer_pb.FileChunk, err error) {
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pages.lock.Lock()
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defer pages.lock.Unlock()
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var chunk *filer_pb.FileChunk
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if len(data) > len(pages.Data) {
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@ -37,13 +42,14 @@ func (pages *ContinuousDirtyPages) AddPage(ctx context.Context, offset int64, da
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if chunk, err = pages.saveExistingPagesToStorage(ctx); err == nil {
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if chunk != nil {
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glog.V(4).Infof("%s/%s flush existing [%d,%d)", pages.f.dir.Path, pages.f.Name, chunk.Offset, chunk.Offset+int64(chunk.Size))
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chunks = append(chunks, chunk)
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}
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chunks = append(chunks, chunk)
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} else {
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glog.V(0).Infof("%s/%s failed to flush1 [%d,%d): %v", pages.f.dir.Path, pages.f.Name, chunk.Offset, chunk.Offset+int64(chunk.Size), err)
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return
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}
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pages.Size = 0
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pages.Offset = 0
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// flush the big page
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if chunk, err = pages.saveToStorage(ctx, data, offset); err == nil {
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@ -77,12 +83,18 @@ func (pages *ContinuousDirtyPages) AddPage(ctx context.Context, offset int64, da
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return
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}
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pages.Offset = offset
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pages.Size = int64(len(data))
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copy(pages.Data, data)
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pages.Size = int64(len(data))
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return
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}
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copy(pages.Data[offset-pages.Offset:], data)
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if offset != pages.Offset+pages.Size {
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// when this happens, debug shows the data overlapping with existing data is empty
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// the data is not just append
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copy(pages.Data[pages.Size:], data[pages.Offset+pages.Size-offset:])
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} else {
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copy(pages.Data[offset-pages.Offset:], data)
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}
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pages.Size = max(pages.Size, offset+int64(len(data))-pages.Offset)
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return
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@ -90,12 +102,16 @@ func (pages *ContinuousDirtyPages) AddPage(ctx context.Context, offset int64, da
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func (pages *ContinuousDirtyPages) FlushToStorage(ctx context.Context) (chunk *filer_pb.FileChunk, err error) {
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pages.lock.Lock()
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defer pages.lock.Unlock()
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if pages.Size == 0 {
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return nil, nil
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}
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if chunk, err = pages.saveExistingPagesToStorage(ctx); err == nil {
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pages.Size = 0
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pages.Offset = 0
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if chunk != nil {
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glog.V(4).Infof("%s/%s flush [%d,%d)", pages.f.dir.Path, pages.f.Name, chunk.Offset, chunk.Offset+int64(chunk.Size))
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}
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@ -104,14 +120,16 @@ func (pages *ContinuousDirtyPages) FlushToStorage(ctx context.Context) (chunk *f
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}
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func (pages *ContinuousDirtyPages) saveExistingPagesToStorage(ctx context.Context) (*filer_pb.FileChunk, error) {
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if pages.Size == 0 {
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return nil, nil
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}
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return pages.saveToStorage(ctx, pages.Data[:pages.Size], pages.Offset)
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}
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func (pages *ContinuousDirtyPages) saveToStorage(ctx context.Context, buf []byte, offset int64) (*filer_pb.FileChunk, error) {
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if pages.Size == 0 {
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return nil, nil
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}
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var fileId, host string
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@ -140,6 +140,7 @@ func (fh *FileHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *f
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chunks, err := fh.dirtyPages.AddPage(ctx, req.Offset, req.Data)
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if err != nil {
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glog.Errorf("%+v/%v write fh %d: [%d,%d): %v", fh.f.dir.Path, fh.f.Name, fh.handle, req.Offset, req.Offset+int64(len(req.Data)), err)
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return fmt.Errorf("write %s/%s at [%d,%d): %v", fh.f.dir.Path, fh.f.Name, req.Offset, req.Offset+int64(len(req.Data)), err)
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}
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@ -179,7 +180,7 @@ func (fh *FileHandle) Flush(ctx context.Context, req *fuse.FlushRequest) error {
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chunk, err := fh.dirtyPages.FlushToStorage(ctx)
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if err != nil {
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glog.V(0).Infof("flush %s/%s to %s [%d,%d): %v", fh.f.dir.Path, fh.f.Name, chunk.FileId, chunk.Offset, chunk.Offset+int64(chunk.Size), err)
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glog.Errorf("flush %s/%s to %s [%d,%d): %v", fh.f.dir.Path, fh.f.Name, chunk.FileId, chunk.Offset, chunk.Offset+int64(chunk.Size), err)
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return fmt.Errorf("flush %s/%s to %s [%d,%d): %v", fh.f.dir.Path, fh.f.Name, chunk.FileId, chunk.Offset, chunk.Offset+int64(chunk.Size), err)
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}
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if chunk != nil {
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@ -68,7 +68,7 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
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count, e := vs.store.ReadVolumeNeedle(volumeId, n)
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glog.V(4).Infoln("read bytes", count, "error", e)
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if e != nil || count < 0 {
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glog.V(0).Infoln("read error:", e, r.URL.Path)
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glog.V(0).Infof("read %s error:", r.URL.Path, e)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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