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add padding for series offsets

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This commit is contained in:
Shubheksha Jalan 2018-01-05 18:28:09 +05:30
parent d45b595a1d
commit 77eb9fb56e
1 changed files with 6 additions and 4 deletions
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10
index/index.go
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@ -180,11 +180,11 @@ func (w *Writer) write(bufs ...[]byte) error {
if err != nil {
return err
}
// For now the index file must not grow beyond 4GiB. Some of the fixed-sized
// For now the index file must not grow beyond 64GiB. Some of the fixed-sized
// offset references in v1 are only 4 bytes large.
// Once we move to compressed/varint representations in those areas, this limitation
// can be lifted.
if w.pos > math.MaxUint32 {
if w.pos > 16*math.MaxUint32 {
return errors.Errorf("exceeding max size of 4GiB")
}
}
@ -250,6 +250,7 @@ func (w *Writer) writeMeta() error {
return w.write(w.buf1.get())
}
//AddSeries adds the series one at a time along with its chunks.
func (w *Writer) AddSeries(ref uint64, lset labels.Labels, chunks ...chunks.Meta) error {
if err := w.ensureStage(idxStageSeries); err != nil {
return err
@ -261,7 +262,8 @@ func (w *Writer) AddSeries(ref uint64, lset labels.Labels, chunks ...chunks.Meta
if _, ok := w.seriesOffsets[ref]; ok {
return errors.Errorf("series with reference %d already added", ref)
}
w.seriesOffsets[ref] = w.pos
w.addPadding(16)
w.seriesOffsets[ref] = w.pos / 16
w.buf2.reset()
w.buf2.putUvarint(len(lset))
@ -854,7 +856,7 @@ func (r *Reader) LabelIndices() ([][]string, error) {
// Series the series with the given ID and writes its labels and chunks into lbls and chks.
func (r *Reader) Series(id uint64, lbls *labels.Labels, chks *[]chunks.Meta) error {
d := r.decbufUvarintAt(int(id))
d := r.decbufUvarintAt(int(16 * id))
if d.err() != nil {
return d.err()
}