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volume: checksum remove the hashing step in Value()

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This commit is contained in:
chrislu
2022-06-05 15:24:02 -07:00
parent ecef844dfc
commit 056c480eb0
7 changed files with 26 additions and 22 deletions
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8
weed/storage/volume_read.go
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@@ -41,10 +41,10 @@ func (v *Volume) readNeedle(n *needle.Needle, readOption *ReadOption, onReadSize
}
if readOption != nil && readOption.AttemptMetaOnly && readSize > PagedReadLimit {
readOption.VolumeRevision = v.SuperBlock.CompactionRevision
readOption.ChecksumValue, err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset(), readSize, v.Version())
err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset(), readSize, v.Version())
if err == needle.ErrorSizeMismatch && OffsetSize == 4 {
readOption.IsOutOfRange = true
readOption.ChecksumValue, err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset()+int64(MaxPossibleVolumeSize), readSize, v.Version())
err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset()+int64(MaxPossibleVolumeSize), readSize, v.Version())
}
if err != nil {
return 0, err
@@ -105,7 +105,7 @@ func (v *Volume) readNeedleDataInto(n *needle.Needle, readOption *ReadOption, wr
if readOption.VolumeRevision != v.SuperBlock.CompactionRevision {
// the volume is compacted
readOption.IsOutOfRange = false
readOption.ChecksumValue, err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset(), readSize, v.Version())
err = n.ReadNeedleMeta(v.DataBackend, nv.Offset.ToActualOffset(), readSize, v.Version())
}
buf := mem.Allocate(1024 * 1024)
defer mem.Free(buf)
@@ -114,7 +114,7 @@ func (v *Volume) readNeedleDataInto(n *needle.Needle, readOption *ReadOption, wr
actualOffset += int64(MaxPossibleVolumeSize)
}
return n.ReadNeedleDataInto(v.DataBackend, actualOffset, buf, writer, offset, size, readOption.ChecksumValue)
return n.ReadNeedleDataInto(v.DataBackend, actualOffset, buf, writer, offset, size)
}
// read fills in Needle content by looking up n.Id from NeedleMapper