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ensure monotonic n.AppendAtNs in each place (#3880)

Browse Source 
https://github.com/seaweedfs/seaweedfs/issues/3852

Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com>
This commit is contained in:
Konstantin Lebedev
2022-10-24 06:24:52 +05:00
committed by GitHub
parent 7b90696601
commit 6253058d9d
2 changed files with 19 additions and 12 deletions
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16
weed/storage/volume_write.go
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@@ -4,13 +4,11 @@ import (
"bytes"
"errors"
"fmt"
"os"
"time"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/storage/backend"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
. "github.com/seaweedfs/seaweedfs/weed/storage/types"
"os"
)
var ErrorNotFound = errors.New("not found")
@@ -157,7 +155,7 @@ func (v *Volume) doWriteRequest(n *needle.Needle, checkCookie bool) (offset uint
}
// append to dat file
n.AppendAtNs = max(uint64(time.Now().UnixNano()), v.lastAppendAtNs+1)
n.UpdateAppendAtNs(v.lastAppendAtNs)
offset, size, _, err = n.Append(v.DataBackend, v.Version())
v.checkReadWriteError(err)
if err != nil {
@@ -218,6 +216,7 @@ func (v *Volume) doDeleteRequest(n *needle.Needle) (Size, error) {
size := nv.Size
if !v.hasRemoteFile {
n.Data = nil
n.UpdateAppendAtNs(v.lastAppendAtNs)
n.AppendAtNs = uint64(time.Now().UnixNano())
offset, _, _, err = n.Append(v.DataBackend, v.Version())
v.checkReadWriteError(err)
@@ -318,7 +317,7 @@ func (v *Volume) WriteNeedleBlob(needleId NeedleId, needleBlob []byte, size Size
return fmt.Errorf("volume size limit %d exceeded! current size is %d", MaxPossibleVolumeSize, v.nm.ContentSize())
}
appendAtNs := uint64(time.Now().UnixNano())
appendAtNs := needle.GetAppendAtNs(v.lastAppendAtNs)
offset, err := needle.WriteNeedleBlob(v.DataBackend, needleBlob, size, appendAtNs, v.Version())
v.checkReadWriteError(err)
@@ -334,10 +333,3 @@ func (v *Volume) WriteNeedleBlob(needleId NeedleId, needleBlob []byte, size Size
return err
}
func max(x, y uint64) uint64 {
if x <= y {
return y
}
return x
}