thanos-io · bwplotka · Nov 20, 2020 · Nov 20, 2020 · Nov 20, 2020 · Nov 18, 2020
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,6 +13,20 @@ We use _breaking :warning:_ to mark changes that are not backward compatible (re
 
 ### Added
 
+- [#3469](https://github.com/thanos-io/thanos/pull/3469) StoreAPI: Added `hints` field to `LabelNamesRequest` and `LabelValuesRequest`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
+
+### Fixed
+
+-
+
+### Changed
+
+-
+
+## [v0.17.0](https://github.com/thanos-io/thanos/releases/tag/v0.17.0) - 2020.11.18
+
+### Added
+
 - [#3259](https://github.com/thanos-io/thanos/pull/3259) Thanos BlockViewer: Added a button in the blockviewer that allows users to download the metadata of a block.
 - [#3261](https://github.com/thanos-io/thanos/pull/3261) Thanos Store: Use segment files specified in meta.json file, if present. If not present, Store does the LIST operation as before.
 - [#3276](https://github.com/thanos-io/thanos/pull/3276) Query Frontend: Support query splitting and retry for label names, label values and series requests.
@@ -31,7 +45,8 @@ We use _breaking :warning:_ to mark changes that are not backward compatible (re
 - [#3431](https://github.com/thanos-io/thanos/pull/3431) Store: Added experimental support to lazy load index-headers at query time. When enabled via `--store.enable-index-header-lazy-reader` flag, the store-gateway will load into memory an index-header only once it's required at query time. Index-header will be automatically released after `--store.index-header-lazy-reader-idle-timeout` of inactivity.
   - This, generally, reduces baseline memory usage of store when inactive, as well as a total number of mapped files (which is limited to 64k in some systems.
 - [#3437](https://github.com/thanos-io/thanos/pull/3437) StoreAPI: Added `hints` field to `LabelNamesResponse` and `LabelValuesResponse`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
-- [#3469](https://github.com/thanos-io/thanos/pull/3469) StoreAPI: Added `hints` field to `LabelNamesRequest` and `LabelValuesRequest`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
+   * This, generally, reduces baseline memory usage of store when inactive, as well as a total number of mapped files (which is limited to 64k in some systems.
+- [#3415](https://github.com/thanos-io/thanos/pull/3415) Tools: Added `thanos tools bucket mark` command that allows to mark given block for deletion or for no-compact
 
 ### Fixed
 
@@ -43,6 +58,7 @@ We use _breaking :warning:_ to mark changes that are not backward compatible (re
 
 ### Changed
 
+- [#3452](https://github.com/thanos-io/thanos/pull/3452) Store: Index cache posting compression is now enabled by default. Removed `experimental.enable-index-cache-postings-compression` flag.
 - [#3410](https://github.com/thanos-io/thanos/pull/3410) Compactor: Changed metric `thanos_compactor_blocks_marked_for_deletion_total` to `thanos_compactor_blocks_marked_total` with `marker` label.
   Compactor will now automatically disable compaction for blocks with large index that would output blocks after compaction larger than specified value (by default: 64GB). This automatically
   handles the Promethus [format limit](https://github.com/thanos-io/thanos/issues/1424).

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-0.16.0-dev
+0.18.0-dev
diff --git a/cmd/thanos/store.go b/cmd/thanos/store.go
@@ -94,9 +94,6 @@ func registerStore(app *extkingpin.App) {
 		"On the contrary, smaller value will increase baseline memory usage, but improve latency slightly. 1 will keep all in memory. Default value is the same as in Prometheus which gives a good balance.").
 		Hidden().Default(fmt.Sprintf("%v", store.DefaultPostingOffsetInMemorySampling)).Int()
 
-	enablePostingsCompression := cmd.Flag("experimental.enable-index-cache-postings-compression", "If true, Store Gateway will reencode and compress postings before storing them into cache. Compressed postings take about 10% of the original size.").
-		Hidden().Default("false").Bool()
-
 	consistencyDelay := extkingpin.ModelDuration(cmd.Flag("consistency-delay", "Minimum age of all blocks before they are being read. Set it to safe value (e.g 30m) if your object storage is eventually consistent. GCS and S3 are (roughly) strongly consistent.").
 		Default("0s"))
 
@@ -150,7 +147,6 @@ func registerStore(app *extkingpin.App) {
 			},
 			selectorRelabelConf,
 			*advertiseCompatibilityLabel,
-			*enablePostingsCompression,
 			time.Duration(*consistencyDelay),
 			time.Duration(*ignoreDeletionMarksDelay),
 			*webExternalPrefix,
@@ -185,7 +181,7 @@ func runStore(
 	blockSyncConcurrency int,
 	filterConf *store.FilterConfig,
 	selectorRelabelConf *extflag.PathOrContent,
-	advertiseCompatibilityLabel, enablePostingsCompression bool,
+	advertiseCompatibilityLabel bool,
 	consistencyDelay time.Duration,
 	ignoreDeletionMarksDelay time.Duration,
 	externalPrefix, prefixHeader string,
@@ -311,7 +307,6 @@ func runStore(
 		blockSyncConcurrency,
 		filterConf,
 		advertiseCompatibilityLabel,
-		enablePostingsCompression,
 		postingOffsetsInMemSampling,
 		false,
 		lazyIndexReaderEnabled,

diff --git a/docs/contributing/coding-style-guide.md b/docs/contributing/coding-style-guide.md
@@ -65,7 +65,7 @@ defer f.Close() // What if an error occurs here?
 Unchecked errors like this can lead to major bugs. Consider the above example: the `*os.File` `Close` method can be responsible
 for actually flushing to the file, so if an error occurs at that point, the whole **write might be aborted!** 😱
 
-Always check errors! To make it consistent and not distracting, use our [runutil](https://pkg.go.dev/github.com/thanos-io/thanos@v0.11.0/pkg/runutil?tab=doc)
+Always check errors! To make it consistent and not distracting, use our [runutil](https://pkg.go.dev/github.com/thanos-io/thanos@v0.17.0/pkg/runutil?tab=doc)
 helper package, e.g.:
 
 ```go
@@ -122,7 +122,7 @@ func writeToFile(...) (err error) {
 #### Exhaust Readers
 
 One of the most common bugs is forgetting to close or fully read the bodies of HTTP requests and responses, especially on
-error. If you read the body of such structures, you can use the [runutil](https://pkg.go.dev/github.com/thanos-io/thanos@v0.11.0/pkg/runutil?tab=doc)
+error. If you read the body of such structures, you can use the [runutil](https://pkg.go.dev/github.com/thanos-io/thanos@v0.17.0/pkg/runutil?tab=doc)
 helper as well:
 
 ```go

diff --git a/docs/operating/cross-cluster-tls-communication.md b/docs/operating/cross-cluster-tls-communication.md
@@ -71,7 +71,7 @@ metadata:
             optional: false
       containers:
         - name: querier
-          image: 'thanosio/thanos:v0.15.0'
+          image: 'thanosio/thanos:v0.17.0'
           args:
             - query
             - '--log.level=info'

diff --git a/pkg/store/bucket.go b/pkg/store/bucket.go
@@ -247,6 +247,10 @@ type FilterConfig struct {
 
 // BucketStore implements the store API backed by a bucket. It loads all index
 // files to local disk.
+//
+// NOTE: Bucket store reencodes postings using diff+varint+snappy when storing to cache.
+// This makes them smaller, but takes extra CPU and memory.
+// When used with in-memory cache, memory usage should decrease overall, thanks to postings being smaller.
 type BucketStore struct {
 	logger          log.Logger
 	metrics         *bucketStoreMetrics
@@ -278,10 +282,6 @@ type BucketStore struct {
 	advLabelSets             []labelpb.ZLabelSet
 	enableCompatibilityLabel bool
 
-	// Reencode postings using diff+varint+snappy when storing to cache.
-	// This makes them smaller, but takes extra CPU and memory.
-	// When used with in-memory cache, memory usage should decrease overall, thanks to postings being smaller.
-	enablePostingsCompression   bool
 	postingOffsetsInMemSampling int
 
 	// Enables hints in the Series() response.
@@ -304,7 +304,6 @@ func NewBucketStore(
 	blockSyncConcurrency int,
 	filterConfig *FilterConfig,
 	enableCompatibilityLabel bool,
-	enablePostingsCompression bool,
 	postingOffsetsInMemSampling int,
 	enableSeriesResponseHints bool, // TODO(pracucci) Thanos 0.12 and below doesn't gracefully handle new fields in SeriesResponse. Drop this flag and always enable hints once we can drop backward compatibility.
 	lazyIndexReaderEnabled bool,
@@ -336,7 +335,6 @@ func NewBucketStore(
 		chunksLimiterFactory:        chunksLimiterFactory,
 		partitioner:                 gapBasedPartitioner{maxGapSize: partitionerMaxGapSize},
 		enableCompatibilityLabel:    enableCompatibilityLabel,
-		enablePostingsCompression:   enablePostingsCompression,
 		postingOffsetsInMemSampling: postingOffsetsInMemSampling,
 		enableSeriesResponseHints:   enableSeriesResponseHints,
 		metrics:                     newBucketStoreMetrics(reg),
@@ -519,7 +517,6 @@ func (s *BucketStore) addBlock(ctx context.Context, meta *metadata.Meta) (err er
 		s.chunkPool,
 		indexHeaderReader,
 		s.partitioner,
-		s.enablePostingsCompression,
 	)
 	if err != nil {
 		return errors.Wrap(err, "new bucket block")
@@ -1379,8 +1376,6 @@ type bucketBlock struct {
 
 	partitioner partitioner
 
-	enablePostingsCompression bool
-
 	// Block's labels used by block-level matchers to filter blocks to query. These are used to select blocks using
 	// request hints' BlockMatchers.
 	relabelLabels labels.Labels
@@ -1397,19 +1392,17 @@ func newBucketBlock(
 	chunkPool pool.BytesPool,
 	indexHeadReader indexheader.Reader,
 	p partitioner,
-	enablePostingsCompression bool,
 ) (b *bucketBlock, err error) {
 	b = &bucketBlock{
-		logger:                    logger,
-		metrics:                   metrics,
-		bkt:                       bkt,
-		indexCache:                indexCache,
-		chunkPool:                 chunkPool,
-		dir:                       dir,
-		partitioner:               p,
-		meta:                      meta,
-		indexHeaderReader:         indexHeadReader,
-		enablePostingsCompression: enablePostingsCompression,
+		logger:            logger,
+		metrics:           metrics,
+		bkt:               bkt,
+		indexCache:        indexCache,
+		chunkPool:         chunkPool,
+		dir:               dir,
+		partitioner:       p,
+		meta:              meta,
+		indexHeaderReader: indexHeadReader,
 	}
 
 	// Translate the block's labels and inject the block ID as a label
@@ -1849,22 +1842,20 @@ func (r *bucketIndexReader) fetchPostings(keys []labels.Label) ([]index.Postings
 				compressionTime := time.Duration(0)
 				compressions, compressionErrors, compressedSize := 0, 0, 0
 
-				if r.block.enablePostingsCompression {
-					// Reencode postings before storing to cache. If that fails, we store original bytes.
-					// This can only fail, if postings data was somehow corrupted,
-					// and there is nothing we can do about it.
-					// Errors from corrupted postings will be reported when postings are used.
-					compressions++
-					s := time.Now()
-					bep := newBigEndianPostings(pBytes[4:])
-					data, err := diffVarintSnappyEncode(bep, bep.length())
-					compressionTime = time.Since(s)
-					if err == nil {
-						dataToCache = data
-						compressedSize = len(data)
-					} else {
-						compressionErrors = 1
-					}
+				// Reencode postings before storing to cache. If that fails, we store original bytes.
+				// This can only fail, if postings data was somehow corrupted,
+				// and there is nothing we can do about it.
+				// Errors from corrupted postings will be reported when postings are used.
+				compressions++
+				s := time.Now()
+				bep := newBigEndianPostings(pBytes[4:])
+				data, err := diffVarintSnappyEncode(bep, bep.length())
+				compressionTime = time.Since(s)
+				if err == nil {
+					dataToCache = data
+					compressedSize = len(data)
+				} else {
+					compressionErrors = 1
 				}
 
 				r.mtx.Lock()

diff --git a/pkg/store/bucket_e2e_test.go b/pkg/store/bucket_e2e_test.go
@@ -168,7 +168,6 @@ func prepareStoreWithTestBlocks(t testing.TB, dir string, bkt objstore.Bucket, m
 		20,
 		filterConf,
 		true,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		true,
 		true,

diff --git a/pkg/store/bucket_test.go b/pkg/store/bucket_test.go
@@ -208,7 +208,7 @@ func TestBucketBlock_matchLabels(t *testing.T) {
 		},
 	}
 
-	b, err := newBucketBlock(context.Background(), log.NewNopLogger(), newBucketStoreMetrics(nil), meta, bkt, path.Join(dir, blockID.String()), nil, nil, nil, nil, true)
+	b, err := newBucketBlock(context.Background(), log.NewNopLogger(), newBucketStoreMetrics(nil), meta, bkt, path.Join(dir, blockID.String()), nil, nil, nil, nil)
 	testutil.Ok(t, err)
 
 	cases := []struct {
@@ -579,7 +579,6 @@ func TestBucketStore_Info(t *testing.T) {
 		20,
 		allowAllFilterConf,
 		true,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		false,
 		false,
@@ -831,7 +830,6 @@ func testSharding(t *testing.T, reuseDisk string, bkt objstore.Bucket, all ...ul
 				20,
 				allowAllFilterConf,
 				true,
-				true,
 				DefaultPostingOffsetInMemorySampling,
 				false,
 				false,
@@ -1647,7 +1645,6 @@ func TestSeries_ErrorUnmarshallingRequestHints(t *testing.T) {
 		10,
 		nil,
 		false,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		true,
 		false,
@@ -1741,7 +1738,6 @@ func TestSeries_BlockWithMultipleChunks(t *testing.T) {
 		10,
 		nil,
 		false,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		true,
 		false,
@@ -1886,7 +1882,6 @@ func TestBlockWithLargeChunks(t *testing.T) {
 		10,
 		nil,
 		false,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		true,
 		false,
@@ -2047,7 +2042,6 @@ func setupStoreForHintsTest(t *testing.T) (testutil.TB, *BucketStore, []*storepb
 		10,
 		nil,
 		false,
-		true,
 		DefaultPostingOffsetInMemorySampling,
 		true,
 		false,

diff --git a/tutorials/katacoda/thanos/1-globalview/courseBase.sh b/tutorials/katacoda/thanos/1-globalview/courseBase.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
 docker pull quay.io/prometheus/prometheus:v2.16.0
-docker pull quay.io/thanos/thanos:v0.13.0
+docker pull quay.io/thanos/thanos:v0.17.0
diff --git a/tutorials/katacoda/thanos/1-globalview/step2.md b/tutorials/katacoda/thanos/1-globalview/step2.md
@@ -10,7 +10,7 @@ component and can be invoked in a single command.
 Let's take a look at all the Thanos commands:
 
 ```
-docker run --rm quay.io/thanos/thanos:v0.13.0 --help
+docker run --rm quay.io/thanos/thanos:v0.17.0 --help
 ```{{execute}}
 
 You should see multiple commands that solves different purposes.
@@ -53,7 +53,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/prometheus0_eu1.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-0-sidecar-eu1 \
     -u root \
-    quay.io/thanos/thanos:v0.13.0 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19090 \
     --grpc-address 0.0.0.0:19190 \
@@ -68,7 +68,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/prometheus0_us1.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-0-sidecar-us1 \
     -u root \
-    quay.io/thanos/thanos:v0.13.0 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19091 \
     --grpc-address 0.0.0.0:19191 \
@@ -81,7 +81,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/prometheus1_us1.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-1-sidecar-us1 \
     -u root \
-    quay.io/thanos/thanos:v0.13.0 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19092 \
     --grpc-address 0.0.0.0:19192 \

diff --git a/tutorials/katacoda/thanos/1-globalview/step3.md b/tutorials/katacoda/thanos/1-globalview/step3.md
@@ -28,7 +28,7 @@ Click below snippet to start the Querier.
 ```
 docker run -d --net=host --rm \
     --name querier \
-    quay.io/thanos/thanos:v0.13.0 \
+    quay.io/thanos/thanos:v0.17.0 \
     query \
     --http-address 0.0.0.0:29090 \
     --query.replica-label replica \

diff --git a/tutorials/katacoda/thanos/7-multi-tenancy/courseBase.sh b/tutorials/katacoda/thanos/7-multi-tenancy/courseBase.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 docker pull quay.io/prometheus/prometheus:v2.20.0
-docker pull quay.io/thanos/thanos:v0.16.0-rc.1
+docker pull quay.io/thanos/thanos:v0.17.0
 docker pull quay.io/thanos/prom-label-proxy:v0.3.0-rc.0-ext1
 docker pull caddy:2.2.1
 

diff --git a/tutorials/katacoda/thanos/7-multi-tenancy/step1.md b/tutorials/katacoda/thanos/7-multi-tenancy/step1.md
@@ -88,7 +88,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/editor/prometheus0_fruit.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-0-sidecar-fruit \
     -u root \
-    quay.io/thanos/thanos:v0.16.0-rc.1 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19090 \
     --grpc-address 0.0.0.0:19190 \
@@ -120,7 +120,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/editor/prometheus0_veggie.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-0-sidecar-veggie \
     -u root \
-    quay.io/thanos/thanos:v0.16.0-rc.1 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19091 \
     --grpc-address 0.0.0.0:19191 \
@@ -152,7 +152,7 @@ docker run -d --net=host --rm \
     -v $(pwd)/editor/prometheus1_veggie.yml:/etc/prometheus/prometheus.yml \
     --name prometheus-01-sidecar-veggie \
     -u root \
-    quay.io/thanos/thanos:v0.16.0-rc.1 \
+    quay.io/thanos/thanos:v0.17.0 \
     sidecar \
     --http-address 0.0.0.0:19092 \
     --grpc-address 0.0.0.0:19192 \
@@ -170,7 +170,7 @@ Fruit:
 ```
 docker run -d --net=host --rm \
     --name querier-fruit \
-    quay.io/thanos/thanos:v0.16.0-rc.1 \
+    quay.io/thanos/thanos:v0.17.0 \
     query \
     --http-address 0.0.0.0:29091 \
     --grpc-address 0.0.0.0:29191 \
@@ -183,7 +183,7 @@ Veggie:
 ```
 docker run -d --net=host --rm \
     --name querier-veggie \
-    quay.io/thanos/thanos:v0.16.0-rc.1 \
+    quay.io/thanos/thanos:v0.17.0 \
     query \
     --http-address 0.0.0.0:29092 \
     --grpc-address 0.0.0.0:29192 \