mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
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
|
|
|
|
import (
|
|
"github.com/seaweedfs/seaweedfs/weed/filer"
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/seaweedfs/seaweedfs/weed/util"
|
|
"os"
|
|
"sync"
|
|
)
|
|
|
|
type FileHandleId uint64
|
|
|
|
var IsDebugFileReadWrite = false
|
|
|
|
type FileHandle struct {
|
|
fh FileHandleId
|
|
counter int64
|
|
entry *LockedEntry
|
|
entryLock sync.Mutex
|
|
entryChunkGroup *filer.ChunkGroup
|
|
inode uint64
|
|
wfs *WFS
|
|
|
|
// cache file has been written to
|
|
dirtyMetadata bool
|
|
dirtyPages *PageWriter
|
|
reader *filer.ChunkReadAt
|
|
contentType string
|
|
handle uint64
|
|
sync.Mutex
|
|
|
|
isDeleted bool
|
|
|
|
// for debugging
|
|
mirrorFile *os.File
|
|
}
|
|
|
|
func newFileHandle(wfs *WFS, handleId FileHandleId, inode uint64, entry *filer_pb.Entry) *FileHandle {
|
|
fh := &FileHandle{
|
|
fh: handleId,
|
|
counter: 1,
|
|
inode: inode,
|
|
wfs: wfs,
|
|
}
|
|
// dirtyPages: newContinuousDirtyPages(file, writeOnly),
|
|
fh.dirtyPages = newPageWriter(fh, wfs.option.ChunkSizeLimit)
|
|
fh.entry = &LockedEntry{
|
|
Entry: entry,
|
|
}
|
|
if entry != nil {
|
|
fh.SetEntry(entry)
|
|
}
|
|
|
|
if IsDebugFileReadWrite {
|
|
var err error
|
|
fh.mirrorFile, err = os.OpenFile("/tmp/sw/"+entry.Name, os.O_RDWR|os.O_CREATE, 0600)
|
|
if err != nil {
|
|
println("failed to create mirror:", err.Error())
|
|
}
|
|
}
|
|
|
|
return fh
|
|
}
|
|
|
|
func (fh *FileHandle) FullPath() util.FullPath {
|
|
fp, _ := fh.wfs.inodeToPath.GetPath(fh.inode)
|
|
return fp
|
|
}
|
|
|
|
func (fh *FileHandle) GetEntry() *filer_pb.Entry {
|
|
return fh.entry.GetEntry()
|
|
}
|
|
|
|
func (fh *FileHandle) SetEntry(entry *filer_pb.Entry) {
|
|
if entry != nil {
|
|
fileSize := filer.FileSize(entry)
|
|
entry.Attributes.FileSize = fileSize
|
|
var resolveManifestErr error
|
|
fh.entryChunkGroup, resolveManifestErr = filer.NewChunkGroup(fh.wfs.LookupFn(), fh.wfs.chunkCache, entry.Chunks)
|
|
if resolveManifestErr != nil {
|
|
glog.Warningf("failed to resolve manifest chunks in %+v", entry)
|
|
}
|
|
} else {
|
|
glog.Fatalf("setting file handle entry to nil")
|
|
}
|
|
fh.entry.SetEntry(entry)
|
|
}
|
|
|
|
func (fh *FileHandle) UpdateEntry(fn func(entry *filer_pb.Entry)) *filer_pb.Entry {
|
|
return fh.entry.UpdateEntry(fn)
|
|
}
|
|
|
|
func (fh *FileHandle) AddChunks(chunks []*filer_pb.FileChunk) {
|
|
fh.entryLock.Lock()
|
|
defer fh.entryLock.Unlock()
|
|
|
|
if fh.entry == nil {
|
|
return
|
|
}
|
|
|
|
fh.entry.AppendChunks(chunks)
|
|
}
|
|
|
|
func (fh *FileHandle) ReleaseHandle() {
|
|
fh.entryLock.Lock()
|
|
defer fh.entryLock.Unlock()
|
|
|
|
fh.dirtyPages.Destroy()
|
|
if IsDebugFileReadWrite {
|
|
fh.mirrorFile.Close()
|
|
}
|
|
}
|
|
|
|
func lessThan(a, b *filer_pb.FileChunk) bool {
|
|
if a.ModifiedTsNs == b.ModifiedTsNs {
|
|
return a.Fid.FileKey < b.Fid.FileKey
|
|
}
|
|
return a.ModifiedTsNs < b.ModifiedTsNs
|
|
}
|