mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-19 05:27:50 +08:00
d4566d4aaa
* compare chunks by timestamp
* fix slab clearing error
* fix test compilation
* move oldest chunk to sealed, instead of by fullness
* lock on fh.entryViewCache
* remove verbose logs
* revert slat clearing
* less logs
* less logs
* track write and read by timestamp
* remove useless logic
* add entry lock on file handle release
* use mem chunk only, swap file chunk has problems
* comment out code that maybe used later
* add debug mode to compare data read and write
* more efficient readResolvedChunks with linked list
* small optimization
* fix test compilation
* minor fix on writer
* add SeparateGarbageChunks
* group chunks into sections
* turn off debug mode
* fix tests
* fix tests
* tmp enable swap file chunk
* Revert "tmp enable swap file chunk"
This reverts commit 985137ec47.
* simple refactoring
* simple refactoring
* do not re-use swap file chunk. Sealed chunks should not be re-used.
* comment out debugging facilities
* either mem chunk or swap file chunk is fine now
* remove orderedMutex as *semaphore.Weighted
not found impactful
* optimize size calculation for changing large files
* optimize performance to avoid going through the long list of chunks
* still problems with swap file chunk
* rename
* tiny optimization
* swap file chunk save only successfully read data
* fix
* enable both mem and swap file chunk
* resolve chunks with range
* rename
* fix chunk interval list
* also change file handle chunk group when adding chunks
* pick in-active chunk with time-decayed counter
* fix compilation
* avoid nil with empty fh.entry
* refactoring
* rename
* rename
* refactor visible intervals to *list.List
* refactor chunkViews to *list.List
* add IntervalList for generic interval list
* change visible interval to use IntervalList in generics
* cahnge chunkViews to *IntervalList[*ChunkView]
* use NewFileChunkSection to create
* rename variables
* refactor
* fix renaming leftover
* renaming
* renaming
* add insert interval
* interval list adds lock
* incrementally add chunks to readers
Fixes:
1. set start and stop offset for the value object
2. clone the value object
3. use pointer instead of copy-by-value when passing to interval.Value
4. use insert interval since adding chunk could be out of order
* fix tests compilation
* fix tests compilation
121 lines
2.6 KiB
Go
121 lines
2.6 KiB
Go
package mount
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import (
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"os"
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"sync"
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)
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type FileHandleId uint64
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var IsDebugFileReadWrite = false
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type FileHandle struct {
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fh FileHandleId
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counter int64
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entry *LockedEntry
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entryLock sync.Mutex
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entryChunkGroup *filer.ChunkGroup
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inode uint64
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wfs *WFS
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// cache file has been written to
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dirtyMetadata bool
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dirtyPages *PageWriter
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reader *filer.ChunkReadAt
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contentType string
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handle uint64
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sync.Mutex
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isDeleted bool
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// for debugging
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mirrorFile *os.File
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}
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func newFileHandle(wfs *WFS, handleId FileHandleId, inode uint64, entry *filer_pb.Entry) *FileHandle {
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fh := &FileHandle{
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fh: handleId,
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counter: 1,
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inode: inode,
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wfs: wfs,
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}
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// dirtyPages: newContinuousDirtyPages(file, writeOnly),
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fh.dirtyPages = newPageWriter(fh, wfs.option.ChunkSizeLimit)
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fh.entry = &LockedEntry{
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Entry: entry,
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}
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if entry != nil {
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fh.SetEntry(entry)
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}
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if IsDebugFileReadWrite {
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var err error
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fh.mirrorFile, err = os.OpenFile("/tmp/sw/"+entry.Name, os.O_RDWR|os.O_CREATE, 0600)
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if err != nil {
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println("failed to create mirror:", err.Error())
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}
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}
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return fh
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}
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func (fh *FileHandle) FullPath() util.FullPath {
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fp, _ := fh.wfs.inodeToPath.GetPath(fh.inode)
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return fp
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}
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func (fh *FileHandle) GetEntry() *filer_pb.Entry {
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return fh.entry.GetEntry()
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}
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func (fh *FileHandle) SetEntry(entry *filer_pb.Entry) {
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if entry != nil {
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fileSize := filer.FileSize(entry)
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entry.Attributes.FileSize = fileSize
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var resolveManifestErr error
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fh.entryChunkGroup, resolveManifestErr = filer.NewChunkGroup(fh.wfs.LookupFn(), fh.wfs.chunkCache, entry.Chunks)
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if resolveManifestErr != nil {
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glog.Warningf("failed to resolve manifest chunks in %+v", entry)
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}
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} else {
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glog.Fatalf("setting file handle entry to nil")
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}
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fh.entry.SetEntry(entry)
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}
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func (fh *FileHandle) UpdateEntry(fn func(entry *filer_pb.Entry)) *filer_pb.Entry {
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return fh.entry.UpdateEntry(fn)
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}
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func (fh *FileHandle) AddChunks(chunks []*filer_pb.FileChunk) {
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fh.entryLock.Lock()
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defer fh.entryLock.Unlock()
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if fh.entry == nil {
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return
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}
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fh.entry.AppendChunks(chunks)
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}
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func (fh *FileHandle) ReleaseHandle() {
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fh.entryLock.Lock()
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defer fh.entryLock.Unlock()
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fh.dirtyPages.Destroy()
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if IsDebugFileReadWrite {
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fh.mirrorFile.Close()
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}
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}
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func lessThan(a, b *filer_pb.FileChunk) bool {
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if a.ModifiedTsNs == b.ModifiedTsNs {
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return a.Fid.FileKey < b.Fid.FileKey
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}
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return a.ModifiedTsNs < b.ModifiedTsNs
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}
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