19 Commits (2b6bdc2a29de8d94d78d1c735104f124436a92e5)

Author	SHA1	Message	Date
Christian Haudum	2b6bdc2a29	chore(storage): Simplify store interfaces and abstractions (pt 2) (#10454) ... **What this PR does / why we need it**: * Remove preemptive interface from indexReaderWriter and make it an exported struct * Compose IngesterStore and QuerierStore The ingester and querier do not require a store that implements the full interface, but can accept stores that are a subset of the interfaces. Therefore we can make specific interfaces that are accepted by the ingester and querier constructors. * Split up ChunkFetcher interface This commit splits the ChunkFetcher interface into a ChunkFetcher and a ChunkFetcherProvider interface. This has the advantage that methods can allow accepting smaller interfaces. This commit also renames the `GetChunkRefs()` method of the ChunkFetcher interface into `GetChunks()`, because it returns a `[][]chunk.Chunk`, not a `[]chunk.ChunkRef` type. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	2 years ago
Kaviraj Kanagaraj	bbfb13c3e4	Pin `chunk` and `index` format to `schema` version. (#10213) ... We pin all three `Chunk`, `HeadBlock` and `TSDB` Version to `schema` version in period config. This is the following mapping (after being discussed with @owen-d and @sandeepsukhani ) `v12` (current existing schema) - ChunkFormatV3 (UnorderedHeadBlock) + TSDBv2 `v13` (introducing new schema) - ChunkFormatV4 (UnorderedWithNonIndexedLabelsHeadBlockFmt) + TSDBv3 Note the new schema `v13` supports the latest chunk and index format. **NOTES for Reviewer** 1. General approach is we removed the idea of `index.LiveFormat`, `chunkenc.DefaultChunkFormat` and `chunkenc.DefaultHeadBlockFmt` and made following two changes. These variables were used before to tie chunk and tsdb formats specific to Loki versions. This PR remove that coupling and pin these formats to `schema` version instead. 1. These variables were replaced with explicit chunk and index formats within those packages (and it's tests) 2. If these variables were used outside it's own packages say by ingester, compactor, etc. Then we extract correct chunk and index versions from the `schema` config. 2. Add two methods to `periodConfig`. (1) `ChunkFormat()` returning chunk and head format tied to schema (2) `TSDBFormat()` returning tsdb format tied to schema. 2. Other ideas I thought of doing but didn't end up doing is make `ChunkFormat` and `IndexFormat` as separate type (rather than `byte` and `int` currently. Similar to `HeadBlockFmt` type). But didnt' do it eventually to keep the PR small and don't want to complicate with lots of changes. 4. Moved couple of test cases from `chunkenc` to `config` package, because the test case was actually testing methods on `schemaconfig` and it was creating cycling dependencies. --------- Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com>	2 years ago
Trevor Whitney	a12311c5c8	Allow volume to be aggregated by label (#9988) ... Add a `aggregateBy` query parameter to the `series_volume` endpoint, and rename that endpoint to just `volume`. This allows users to get volumes aggregated into top level labels, rather label+value pairs. --------- Co-authored-by: Travis Patterson <travis.patterson@grafana.com>	2 years ago
Trevor Whitney	9e19ff006c	Add targetLabels to SeriesVolume requests (#9878) ... Adds optional `targetLabels` parameter to `series_volume` and `series_volume_range` requests that controls how volumes are aggregated. When provided, volumes are aggregated into the intersections of the provided `targetLabels` only.	2 years ago
Travis Patterson	4da0f63789	Remove unused Value field (#9774) ... We didn't end up needing the `Value` field because we can express everything we need to as selectors	2 years ago
Travis Patterson	db97058a84	Series volume endpoint (#9704) ... This changes the `label_volume` endpoint to the `series_volume` endpoint. The new endpoint still returns volumes but now it does it for the requested streams defined by the selector names passed rather than individual labels. All relevant non-requested labels are aggregated into the returned results ex: Assume we have the following streams: ``` {cluster="prod", team="A", component="foo"} {cluster="prod", team="B", component="foo"} {cluster="dev", team="A", component="foo"} {cluster="dev", team="B", component="foo"} ``` - requesting `{cluster="prod"}` returns one result for all streams containing `{cluster="prod"}` - requesting `{cluster=~".+"}` returns two results for the streams containing `{cluster="prod"}` and `{cluster="dev"}` - requesting `{cluster=~".+", team=".+"}` returns four results for the streams containing: ``` {cluster="prod", team="A"} {cluster="prod", team="B"} {cluster="dev", team="A"} {cluster="dev", team="B"} ``` --------- Co-authored-by: Trevor Whitney <trevorjwhitney@gmail.com>	2 years ago
Trevor Whitney	4a56445686	Upgrade `golangci-lint` and fix linting errors (#9601) ... **What this PR does / why we need it**: Upgrade `golangci-lint` and fixes all the errors. The upgrade includes some stricter linting.	2 years ago
Travis Patterson	065bee7e72	Label Volume Endpoint (#9588) ... For a given set of matchers, returns the top N associated label/value pairs by volume. A query for `{cluster=prod}` will return ``` cluster=prod: size (total logs matching this matcher) . . . nth-label=nth-value ``` This is to service use cases where users want to understand where their log volume has come from by label without making multiple requests to the stats endpoint. Note: This PR is a monster but it's mostly plumbing. I've pointed out the most interesting bits that actually get the volumes from ingesters/indexs	2 years ago
Owen Diehl	07487cd89d	fixes bug with queryIngesterWithin logic in asyncStore ingester stats… (#8145) ... Fixes a previous mistake in the logic calculating when to skip querying ingesters in the async store Statistics method. Notably `through.After` should be `through.Before` when skipping querying ingesters as that's when there's no overlap with the `query-ingesters-within` period: ```go // OLD CODE BELOW if a.queryIngestersWithin != 0 { // don't query ingesters if the query does not overlap with queryIngestersWithin. if !through.After(model.Now().Add(-a.queryIngestersWithin)) { // <----- should be through.Before return a.Store.Stats(ctx, userID, from, through, matchers...) } } ``` I discovered the problem while debugging querier OOMs during a boltdb-shipper -> tsdb migration and ultimately found this happened under the following circumstances: * Queries over high volumes of _recent_ data wouldn't query ingesters for index metadata * Without index metadata, we only checked storage metadata * There is a delay before we ship the index to storage, meaning we don't see it if ingesters are skipped * Calculating ideal shard factors without recent data for queries that only touch recent data _dramatically_ underestimates the desired shard factor * Queries aren't split enough and get scheduled onto too few querier replicas * They oom. We had some fun examples like a single replica trying to download 419,000 chunks/query To be clear, this is still a hypothesis, but a plausible one, especially after finding the boolean logic error this PR fixes. Instead of changing this one line, I took the opportunity to refactor this into a shared utility used by our other `GetChunkRefs` method which is already tested, ensuring the logic works as expected. I also added some more logging visibility into this code so we can understand what the difference is when querying statistics from storage vs ingesters. Finally, I added a helper to prepare our `Stats` objects to be logged which is now used in a few places.	2 years ago
Travis Patterson	bc16450349	Revert "Hide duplicates caused by stream sharding (#7005)" (#7031) ... @owen-d had a suggestion that was dramatically dimpler. Revert this whole thing and the simplified PR will be forthcoming	3 years ago
Travis Patterson	a98b7ebaf4	Hide duplicates caused by stream sharding (#7005) ... As streams are sharded and resharded across different ingesters, the likelihood of duplicate logs being ingested increases dramatically. This removes duplicates at query time by dynamically removing the `__shard_stream__` label for both log and sample queries so the `stream hash` used by the `MergeEntryIterator` will match when doing comparisons for duplicates. The `stream hash` is created in either the `store` or `ingester instance` at query time so the labels are removed there. Additionally, the `MergeEntryIterator` has been modified to remove duplicates in a stream rather than just across streams. For completeness, `__shard_stream__` has also been removed from Label and Series Queries.	3 years ago
Sandeep Sukhani	d1aff7b29f	store: fix bug in getting chunk ids from ingesters when using boltdb-shipper (#5945) ... * initialize async store in store factory function itself * add a comment about QueryIngestersWithin	3 years ago
Cyril Tovena	8f02495453	Refactoring of the Loki storage (#5833) ... * Extract index interface from the series store * moving package around * Moving more things around Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Moving more things around Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * moving package around * Moving more things around again Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Moving more things around again Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * improve composite store for more generics index store * fixes first round of tests and ensure coverage is still good * implement series method * Fixes storage tests Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Add test for GetSeries Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Make Loki compile Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * lint the whole project Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Fixes tests Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * tsdb util package usage Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Add more information of why SetChunkFilterer exists for the index Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Fixes ruler/base package Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com> * Fixes o2 Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>	3 years ago
JordanRushing	291360ddcb	Simpler new chunk key v12 (#5054) ... * starts hacking new chunk paths * Create new chunk key for S3; update parsing and add basic test and benchmark Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> Fix `TestGrpcStore` to work with new chunk key structure Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> Add a function to SchemaConfig that returns the correct PeriodConfig for a given time. Signed-off-by: Callum Styan <callumstyan@gmail.com> Add schema config to object client so it we can use the right external key function based on the schema version. Signed-off-by: Callum Styan <callumstyan@gmail.com> Fix failing compactor tests by passing SchemaConfig to chunkClient Remove empty conditional from SchemaForTime Define schema v12; wire-in ChunkPathShardFactor and ChunkPathPeriod as configurable values Add PeriodConfig test steps for new values ChunkPathShardFactor and ChunkPathPeriod in v12 Update test for chunk.NewExternalKey(); remove completed TODO Set defaults for new ChunkPathPeriod and ChunkPathShardFactor SchemaConfig values; change FSObjectClient to use IdentityEncoder instead of Base64Encoder Use IdentityEncoder everywhere we use FSObjectClient for Chunks Add ExternalKey() function to SchemaConfig; update ObjectClient for Chunks * Finish plumbing through the chunk.ExternalKey -> schemaConfig.ExternalKey change. Signed-off-by: Callum Styan <callumstyan@gmail.com> * Clean up lint failures Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Clean up chunk.go and fix tests Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Break SchemaConfig.ExternalKey() into smaller functions Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Quickly fix variable name in SchemaConfig.newerExternalKey() Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Clean up ExternalKey conditional logic; add better comments; add tests Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Fix a bug where we are prepending userID to legacy Chunk keys but never parsing it; refactor key tests and benchmarks Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Add small SchemaConfig test Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Update docs and CHANGELOG.md Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Correctly return an error when failing to parse a chunk external key Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Revert IdentityEncoder to Base64Encoder after testing Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Fix assignment in test for linter Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Remove leftover comments from development Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Change v12 version comment format; remove redundant login in `ParseExternalKey()` Co-authored-by: Owen Diehl <ow.diehl@gmail.com> * Change remaining v12 comment style Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Pass chunk.SchemaConfig to new parallel chunk client * Simplify chunk external key prefixes for schema v12 * Fix broken benchmark; add benchmarks for old parsing conditional Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * Remove unneeded lines from upgrading doc * Add benchmarks for root chunk external key parsing functions Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> * memoizes schema number calculations * Resolve linter issue with PeriodConfig receiver name Signed-off-by: Jordan Rushing <jordan.rushing@grafana.com> Co-authored-by: Owen Diehl <ow.diehl@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com>	3 years ago
Marco Pracucci	c53457feb9	Upgrade Cortex, Prometheus and Thanos (#4830) ... * Upgrade Cortex, Prometheus and Thanos Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed imported ordering Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed data type used for series ref when recovering from checkpoint/WAL Signed-off-by: Marco Pracucci <marco@pracucci.com> * Upgraded Thanos to fix arm build Signed-off-by: Marco Pracucci <marco@pracucci.com> * Run go mod tidy Signed-off-by: Marco Pracucci <marco@pracucci.com>	4 years ago
Cyril Tovena	32e55c3043	Fork cortex chunk storage into Loki. (#3842) ... The chunk package has been forked from this commit for future reference and licensing. 09fe17c0e6	4 years ago
Sandeep Sukhani	db14ff193c	limit query range in async store for ingesters when query-ingesters-within flag is set (#3201) ... * limit query range in async store for ingesters when query-ingesters-within flag is set * do not reduce ingester query start time	4 years ago
Cyril Tovena	62272cdaa1	Fixes all lint errors. (#2768) ... Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>	5 years ago
Sandeep Sukhani	2f7e0e50c2	rpc for querying ingesters to get chunk ids from its store (#2601) ... * rpc for querying ingesters to get chunk ids from its store * fix broken tests * separate out code from querier to query ingester to a new type called IngesterQuerier * add AsyncStore which helps with querying and merging results from both chunk store and ingesters * query ingesters local store for labels when active index type is boltdb-shipper or query store is true * better naming * add some tests * add test case for duplicate chunk ids from ingesters * add some logs and spans * check for nil fetcher * use require.Same to assert that two pointers are pointing to same object * some more improvements 1. query chunk-refs parallely from store and ingesters. 2. limit look back for chunk refs and labels from ingesters to start of schema when using boltdb-shipper. * fixes suggested from PR review * fix mode not being set before cortex_storage.NewStore is being called * add IngesterQuerier as a dependency for store when target is either ingester or querier * do not cache index from ingester * rename tests * fix broken tests * update upgrade guide to rollout ingesters before queriers * upgrade guide changes suggested in PR review * runtime check for whether active index store is boltdb-shipper * consider previous schema as well for boltdb-shipper for calculating max look back	5 years ago