You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.0 KiB
98 lines
2.0 KiB
package erasure_coding
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/types"
|
|
"github.com/seaweedfs/seaweedfs/weed/util"
|
|
)
|
|
|
|
var (
|
|
MarkNeedleDeleted = func(file *os.File, offset int64) error {
|
|
b := make([]byte, types.SizeSize)
|
|
types.SizeToBytes(b, types.TombstoneFileSize)
|
|
n, err := file.WriteAt(b, offset+types.NeedleIdSize+types.OffsetSize)
|
|
if err != nil {
|
|
return fmt.Errorf("sorted needle write error: %v", err)
|
|
}
|
|
if n != types.SizeSize {
|
|
return fmt.Errorf("sorted needle written %d bytes, expecting %d", n, types.SizeSize)
|
|
}
|
|
return nil
|
|
}
|
|
)
|
|
|
|
func (ev *EcVolume) DeleteNeedleFromEcx(needleId types.NeedleId) (err error) {
|
|
|
|
_, _, err = SearchNeedleFromSortedIndex(ev.ecxFile, ev.ecxFileSize, needleId, MarkNeedleDeleted)
|
|
|
|
if err != nil {
|
|
if err == NotFoundError {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
|
|
b := make([]byte, types.NeedleIdSize)
|
|
types.NeedleIdToBytes(b, needleId)
|
|
|
|
ev.ecjFileAccessLock.Lock()
|
|
|
|
ev.ecjFile.Seek(0, io.SeekEnd)
|
|
ev.ecjFile.Write(b)
|
|
|
|
ev.ecjFileAccessLock.Unlock()
|
|
|
|
return
|
|
}
|
|
|
|
func RebuildEcxFile(baseFileName string) error {
|
|
|
|
if !util.FileExists(baseFileName + ".ecj") {
|
|
return nil
|
|
}
|
|
|
|
ecxFile, err := os.OpenFile(baseFileName+".ecx", os.O_RDWR, 0644)
|
|
if err != nil {
|
|
return fmt.Errorf("rebuild: failed to open ecx file: %v", err)
|
|
}
|
|
defer ecxFile.Close()
|
|
|
|
fstat, err := ecxFile.Stat()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ecxFileSize := fstat.Size()
|
|
|
|
ecjFile, err := os.OpenFile(baseFileName+".ecj", os.O_RDWR, 0644)
|
|
if err != nil {
|
|
return fmt.Errorf("rebuild: failed to open ecj file: %v", err)
|
|
}
|
|
|
|
buf := make([]byte, types.NeedleIdSize)
|
|
for {
|
|
n, _ := ecjFile.Read(buf)
|
|
if n != types.NeedleIdSize {
|
|
break
|
|
}
|
|
|
|
needleId := types.BytesToNeedleId(buf)
|
|
|
|
_, _, err = SearchNeedleFromSortedIndex(ecxFile, ecxFileSize, needleId, MarkNeedleDeleted)
|
|
|
|
if err != nil && err != NotFoundError {
|
|
ecxFile.Close()
|
|
return err
|
|
}
|
|
|
|
}
|
|
|
|
ecxFile.Close()
|
|
|
|
os.Remove(baseFileName + ".ecj")
|
|
|
|
return nil
|
|
}
|