Cut patch release v0.32.2 (#6685)

* store: fix race when iterating blocks (#6675) Signed-off-by: Saswata Mukherjee <[email protected]> * store: Record stats even on ExpandPostings error (#6679) Signed-off-by: Saswata Mukherjee <[email protected]> * Store: fix forgotten field in store stats merge (#6681) Signed-off-by: Michael Hoffmann <[email protected]> * Store: fix postings reader short reads (#6684) bufio.Reader can return less bytes than needed. Go documentation suggests to use io.ReadFull Signed-off-by: Michael Hoffmann <[email protected]> * Cut patch release v0.32.2 Signed-off-by: Saswata Mukherjee <[email protected]> --------- Signed-off-by: Saswata Mukherjee <[email protected]> Signed-off-by: Michael Hoffmann <[email protected]> Co-authored-by: Michael Hoffmann <[email protected]>
thanos-io · Aug 31, 2023 · 7f5c066 · 7f5c066
1 parent 5bf3a9e
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -18,13 +18,28 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 ### Removed
 
+## [v0.32.2](https://github.com/thanos-io/thanos/tree/release-0.32) - 31.08.2023
+
+### Fixed
+
+- [#6675](https://github.com/thanos-io/thanos/pull/6675) Store: Fix race when iterating blocks
+- [#6679](https://github.com/thanos-io/thanos/pull/6679) store: Record stats even on ExpandPostings error
+- [#6681](https://github.com/thanos-io/thanos/pull/6681) Store: Fix forgotten field in store stats merge
+- [#6684](https://github.com/thanos-io/thanos/pull/6684) Store: Fix postings reader short reads to address nil postings bug
+
+### Added
+
+### Changed
+
+### Removed
+
 ## [v0.32.1](https://github.com/thanos-io/thanos/tree/release-0.32) - 28.08.2023
 
 ### Fixed
 
-- [#6650](https://github.com/thanos-io/thanos/pull/6650) Store: fix error handling in decodePostings
-- [#6654](https://github.com/thanos-io/thanos/pull/6654) Store: fix ignored error in postings
-- [#6655](https://github.com/thanos-io/thanos/pull/6655) Store: fix bufio pool handling
+- [#6650](https://github.com/thanos-io/thanos/pull/6650) Store: Fix error handling in decodePostings
+- [#6654](https://github.com/thanos-io/thanos/pull/6654) Store: Fix ignored error in postings
+- [#6655](https://github.com/thanos-io/thanos/pull/6655) Store: Fix bufio pool handling
 - [#6669](https://github.com/thanos-io/thanos/pull/6669) Store: Fix mutable stringset memory usage
 
 ### Added

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-0.32.1
+0.32.2
diff --git a/pkg/store/bucket.go b/pkg/store/bucket.go
@@ -1364,15 +1364,18 @@ func (s *BucketStore) Series(req *storepb.SeriesRequest, seriesSrv storepb.Store
 					"block.resolution": blk.meta.Thanos.Downsample.Resolution,
 				})
 
-				if err := blockClient.ExpandPostings(sortedBlockMatchers, seriesLimiter); err != nil {
-					span.Finish()
-					return errors.Wrapf(err, "fetch series for block %s", blk.meta.ULID)
-				}
 				onClose := func() {
 					mtx.Lock()
 					stats = blockClient.MergeStats(stats)
 					mtx.Unlock()
 				}
+
+				if err := blockClient.ExpandPostings(sortedBlockMatchers, seriesLimiter); err != nil {
+					onClose()
+					span.Finish()
+					return errors.Wrapf(err, "fetch postings for block %s", blk.meta.ULID)
+				}
+
 				part := newLazyRespSet(
 					srv.Context(),
 					span,
@@ -1693,6 +1696,9 @@ func (s *BucketStore) LabelNames(ctx context.Context, req *storepb.LabelNamesReq
 }
 
 func (s *BucketStore) UpdateLabelNames() {
+	s.mtx.RLock()
+	defer s.mtx.RUnlock()
+
 	newSet := stringset.New()
 	for _, b := range s.blocks {
 		labelNames, err := b.indexHeaderReader.LabelNames()
@@ -2844,7 +2850,7 @@ func (r *bucketIndexReader) fetchPostings(ctx context.Context, keys []labels.Lab
 			r.stats.PostingsFetchDurationSum += time.Since(begin)
 			r.mtx.Unlock()
 
-			if rdr.Error() != nil {
+			if err := rdr.Error(); err != nil {
 				return errors.Wrap(err, "reading postings")
 			}
 			return nil
@@ -3522,6 +3528,7 @@ type queryStats struct {
 func (s queryStats) merge(o *queryStats) *queryStats {
 	s.blocksQueried += o.blocksQueried
 
+	s.postingsToFetch += o.postingsToFetch
 	s.postingsTouched += o.postingsTouched
 	s.PostingsTouchedSizeSum += o.PostingsTouchedSizeSum
 	s.postingsFetched += o.postingsFetched

diff --git a/pkg/store/postings.go b/pkg/store/postings.go
@@ -49,7 +49,7 @@ func newPostingsReaderBuilder(ctx context.Context, r *bufio.Reader, postings []p
 }
 
 func getInt32(r io.Reader, buf []byte) (uint32, error) {
-	read, err := r.Read(buf)
+	read, err := io.ReadFull(r, buf)
 	if err != nil {
 		return 0, errors.Wrap(err, "reading")
 	}