apitech/loki - loki - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Travis Patterson	c8d2c32002	feat: Introduce special header that tells Loki not to modify query results (#12327 )	2 years ago
Christian Haudum	863acc0152	chore(blooms): Make block query concurrency configurable (#12292 ) A concurrency of 10 per worker seems to be too high for a reasonable 8GiB memory limit on bloom gateways. So this PR makes the concurrency configurable and uses a default of 4. Memory usage of loading block pages into memory therefore being: ``` worker_concurrency x block_query_concurrency x max_block_page_size x 2 ``` With current defaults: ``` 4 x 4 x 32MiB x 2 = 1GiB ``` Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	2 years ago
Paulin Todev	d54e0871d4	chore(deps): Update Prometheus in Loki and Promtail (#12245 ) This PR updates the Prometheus dependency in Loki and Promtail. The PR is required so that we can also update Grafana Agent to the latest Prometheus. Unfortunately, Promtail and Loki share the same go.mod file.	2 years ago
Salva Corts	2544f003cf	chore: Add summary for received filters in bloom gateway (#12158 )	2 years ago
Paul Rogers	0ddf6fc49d	test: Fix for a few data races (#12129 )	2 years ago
Danny Kopping	609fdb3214	feat(querier/query-frontend): track and log congestion control latency (#12058 ) Signed-off-by: Danny Kopping <danny.kopping@grafana.com>	2 years ago
Salva Corts	4fa5148eb5	refactor: Pass query plan down to bloom gateway (#12037 )	2 years ago
Kaviraj Kanagaraj	fac5997b18	feat: Support split align and caching for instant metric query results (#11814 ) Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com>	2 years ago
Ashwanth	9e7725b31b	feat(metadata): introduce a separate split interval for recent query window (#11897 )	2 years ago
Christian Haudum	1c43991ddc	Remove `bloomcompactor.DayTable` in favour of `config.DayTime` (#11917 ) Both structs shared the same semantics. This PR moves additional functionality from the `DayTable` to the `DayTime` struct. To get the table name of a day (ordinal number of day since unix epoch), call `DayTime.Table()`. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	2 years ago
Paul Rogers	b2e4cc39a8	Add mutex for t.stopped to prevent data races (#11933 ) What this PR does / why we need it: This addresses the data race present on the `t.stopped` variable in `tail.go`. ``` ================== WARNING: DATA RACE Write at 0x00c00098b198 by goroutine 568: github.com/grafana/loki/pkg/querier.(Tailer).close() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail.go:272 +0x104 github.com/grafana/loki/pkg/querier.TestTailer.func7.2() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail_test.go:169 +0x34 runtime.deferreturn() /opt/homebrew/Cellar/go/1.21.6/libexec/src/runtime/panic.go:477 +0x34 testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 Previous read at 0x00c00098b198 by goroutine 569: github.com/grafana/loki/pkg/querier.(Tailer).loop() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail.go:88 +0x13c github.com/grafana/loki/pkg/querier.newTailer.func1() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail.go:342 +0x34 Goroutine 568 (running) created at: testing.(T).Run() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x5e8 github.com/grafana/loki/pkg/querier.TestTailer() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail_test.go:158 +0x10dc testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 Goroutine 569 (running) created at: github.com/grafana/loki/pkg/querier.newTailer() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail.go:342 +0x300 github.com/grafana/loki/pkg/querier.TestTailer.func7() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/tail_test.go:168 +0x138 testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 ================== ``` Which issue(s) this PR fixes: Relates to: https://github.com/grafana/loki/issues/8586 Special notes for your reviewer: Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Paul Rogers	472496feb7	Parse JSON String arrays properly so string elements can be retrieved (#11921 ) What this PR does / why we need it: This PR imports the newly forked grafana/jsonparser over the buger/jsonparser module. The latter has seemingly been abandoned. PR 10690 introduces a fix to the jsonparser module, which has been incorporated into the grafana fork of the module. The PR is designed to fix accessing string array elements from within a JSON structure. For example, with the following JSON: `{"log":{"message":{"content":{"misses":["a","b","c","d"]}}}}` The Loki code, before this PR, when searching for `json misses = "log.message.content.misses[0]" ` will result in an "Unknown value type error". After this PR is merged, the result will assign `a` to the `misses` variable. Which issue(s) this PR fixes: Fixes #[9179](https://github.com/grafana/loki/issues/9179) https://github.com/grafana/loki/pull/10690 Special notes for your reviewer: Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [x] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Paul Rogers	c277158f51	Cleanup data race associated with workerID var (#11922 ) What this PR does / why we need it: A data race existed with the workerID variable, as it could be modified by multiple goroutines. Relates to: https://github.com/grafana/loki/issues/8586 -- Before fix: ``` go test -count=1 -race ./pkg/querier/worker ================== WARNING: DATA RACE Read at 0x00c000494108 by goroutine 229: github.com/grafana/loki/pkg/querier/worker.(processorManager).concurrency.func1() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/processor_manager.go:81 +0x118 Previous write at 0x00c000494108 by goroutine 222: github.com/grafana/loki/pkg/querier/worker.(processorManager).concurrency() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/processor_manager.go:70 +0x108 github.com/grafana/loki/pkg/querier/worker.(querierWorker).resetConcurrency() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker.go:267 +0x10c github.com/grafana/loki/pkg/querier/worker.(querierWorker).AddressAdded() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker.go:219 +0x868 github.com/grafana/loki/pkg/querier/worker.TestResetConcurrency.func1() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker_test.go:64 +0x1c8 testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 Goroutine 229 (running) created at: github.com/grafana/loki/pkg/querier/worker.(processorManager).concurrency() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/processor_manager.go:75 +0xcc github.com/grafana/loki/pkg/querier/worker.(querierWorker).resetConcurrency() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker.go:267 +0x10c github.com/grafana/loki/pkg/querier/worker.(querierWorker).AddressAdded() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker.go:219 +0x868 github.com/grafana/loki/pkg/querier/worker.TestResetConcurrency.func1() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker_test.go:64 +0x1c8 testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 Goroutine 222 (running) created at: testing.(T).Run() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x5e8 github.com/grafana/loki/pkg/querier/worker.TestResetConcurrency() /Users/progers/dev/src/github.com/grafana/loki/pkg/querier/worker/worker_test.go:52 +0x1b0 testing.tRunner() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0x1b0 testing.(T).Run.func1() /opt/homebrew/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x40 ================== --- FAIL: TestResetConcurrency (0.02s) --- FAIL: TestResetConcurrency/concurrency_is_correct_when_numTargets_does_not_divide_evenly_into_maxConcurrent (0.01s) testing.go:1465: race detected during execution of test testing.go:1465: race detected during execution of test FAIL FAIL github.com/grafana/loki/pkg/querier/worker 4.626s FAIL ``` -- After fix: ``` go clean -testcache go test -count=1 -race ./pkg/querier/worker ok github.com/grafana/loki/pkg/querier/worker 6.034s ``` Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist* - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Karsten Jeschkies	483ee56139	Inject downstream accumulator. (#11863 ) What this PR does / why we need it: We inject the downstream accumulator into the downstreamer instead of constructing it on the first arrival of the first result. Since we know the query type before executing the first query we can pass the correct accumulator. This will allow us to define special `topk` or `sum by` accumulators in the future. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Co-authored-by: Christian Haudum <christian.haudum@gmail.com>	2 years ago
Trevor Whitney	406b10c675	accidentally merged this from ##11333 (#11788 ) What this PR does / why we need it: I did not intend to merge this change, reverting to what it was before merging #11333	2 years ago
Trevor Whitney	a064f5d670	feat: add release please config (#11333 ) What this PR does / why we need it: The new release process is being developed in another repo for now as it enables much faster feedback loops. We are at the stage where we are pulling the Loki repo and building images, so it's time to move the `release-please` config into Loki, and configure it for the various packages we will be releasing. This PR adds the two basic configs that `release-please` requires. This PR does not change anything about the release process, it just enables us to keep iterating out of band until we're ready to move over. Which issue(s) this PR fixes: Re #11332	2 years ago
Danny Kopping	e7b782b186	Query-frontend: use the same query split interval for generated cache keys (#11679 ) What this PR does / why we need it: Follow up from #11535 (specifically from [this thread](https://github.com/grafana/loki/pull/11535#issuecomment-1887151515)), this PR modifies the results cache implementation to use the same interval for generating cache keys.	2 years ago
Ashwanth	51899b521b	feat(metadata cache): adds max_metadata_cache_freshness (#11682 ) What this PR does / why we need it: Adds `max_metadata_cache_freshness` to limit the metadata requests that get cached. When configured, only metadata requests with end time before `now - max_metadata_cache_freshness` are cacheable. _reason for setting the default to 24h?_ metric results cache can [extract samples for the desired time range from an extent](`b6e64e1ef1/pkg/querier/queryrange/queryrangebase/results_cache.go (L78)`) since the samples are associated with a timestamp. But the same is not true for metadata caching, it is not possible to extract a subset of labels/series from a cached extent. As a result, we could return inaccurate results, more that what was requested. for ex: returning results from an entire 1h extent for a 5m query Setting `max_metadata_cache_freshness` to 24h should help us avoid caching recent data. For anything older, we would report cached metadata results at a granularity controlled by `split_metadata_queries_by_interval` Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [x] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Danny Kopping	bcd03150c9	Query-frontend: customisable query splitting for queries overlapping `query_ingester_within` window (#11535 ) What this PR does / why we need it: The config option `query_ingesters_within` defines the window during which logs _could_ be present on ingesters, and as such queriers will send queries to ingesters instead. `split_queries_by_interval` is defined to split queries into subqueries for increased parallelism. Aggressive query splitting within the `query_ingesters_within` window can result in overloading ingesters with unnecessarily large numbers of subqueries, which perversely can impact writes. `query_ingesters_within` is set to 3h by default. In Grafana Cloud Logs we set `split_queries_by_interval` as low as 15m (defaults to 1h), which would result in result in 3*60/15=12 requests. Every querier queries every ingester during this window, so that's 12 requests _per ingester per query_ which has the `query_ingesters_within` window in its time range _(i.e. a query from now to now-7d would include the `query_ingesters_within` window as well, now-3h to now-7d would not)_. However, we _do_ want to split queries so an ingester won't have to handle a query for a full `query_ingesters_within` window - this could involve a large amount of data. To account for this, this PR introduces a new option `split_ingester_queries_by_interval` on the query-frontend; this setting is disabled by default. ![image](https://github.com/grafana/loki/assets/373762/2e671bd8-9e8d-4bf3-addf-bebcfc25e8d7)	2 years ago
Ashwanth	e915efc7f8	fix(log results cache): compose empty response based on the request (#11657 ) What this PR does / why we need it: Log results cache when handling a hit composes an empty response based on the cached request. But the limit or direction fields in the cached request need not match with the current request being served. This causes the log results cache to return a response with incorrect limit. This incorrect limit could then get applied when merging responses upstream (split by interval mw for ex.) This pr fixes this by composing the response based on the request being served. I also thought about updating the cache key to include both limit and direction to have a clear separation, but I left it as is for the following reason: if a time range contains no log lines, that result would not change irrespective of a different limit or direction Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Danny Kopping	627e09365b	Restore previous behaviour of no trailing newlines in HTTP error response bodies (#11606 ) What this PR does / why we need it: #11487 introduced a regression which added trailing newlines to HTTP error response bodies, which may affect client integrations. This regression hasn't made it into the 2.9.x or 2.8.x releases yet so no backporting is necessary.	2 years ago
Ashwanth	852becf227	results cache: add new stat `query_length_served` to measure cache effectiveness (#11589 ) What this PR does / why we need it: cache hit rate that is currently being measured using metrics and stats does not account for the fact that a cache hit could return partial results. When we query the cache for a key, we get back a list of extents and these need no cover the entire (split) range of the cache key. This pr adds a new cache stat called `query_length_served` to better measure the cache effectiveness. ``` query_length - sum(length of downstream queries) ``` Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [x] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Paul Rogers	6c4699d8f7	Remove call to set default resolver (#11580 ) What this PR does / why we need it: Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Kaviraj Kanagaraj	ce574485cf	feat(caching): Support caching `/series` and `/labels` query results (#11539 ) What this PR does / why we need it: Add support for caching metadata queries (both series and labels). caching happens after splitting similar to other types of queries. This pr adds the following configs to enable them. ``` cache_series_results: true\|false (default false) cache_label_results: true\|false (default false) ``` And the cache backend for them can be configured using `series_results_cache` and `label_results_cache` blocks under the `query_range` section. Currently the split interval for metadata queries is fixed and defaults to 24h, this pr makes it configurable by introducing `split_metadata_queries_by_interval` Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [x] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> Co-authored-by: Ashwanth Goli <iamashwanth@gmail.com>	2 years ago
Karsten Jeschkies	8d01cbf0c5	Merge quantile sketches as they arrive (#11544 )	2 years ago
Danny Kopping	18ea38883f	Do not reflect label names in request metrics' "route" label (#11551 ) Which issue(s) this PR fixes: Fixes #11549	2 years ago
Karsten Jeschkies	afe146c884	Benchmark and improve sketch join (#11534 ) What this PR does / why we need it: We saw that `JoinQuantileSketchVector` was using too much memory. This is a small step to improve the allocated memory. ``` pkg: github.com/grafana/loki/pkg/logql │ main.log │ pool.log │ │ sec/op │ sec/op vs base │ JoinQuantileSketchVector-10 3.603µ ± 4% 2.631µ ± 0% -26.99% (p=0.002 n=6) │ main.log │ pool.log │ │ B/op │ B/op vs base │ JoinQuantileSketchVector-10 8.344Ki ± 0% 2.539Ki ± 0% -69.57% (p=0.002 n=6) │ main.log │ pool.log │ │ allocs/op │ allocs/op vs base │ JoinQuantileSketchVector-10 109.0 ± 0% 104.0 ± 0% -4.59% (p=0.002 n=6) ``` Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com>	2 years ago
Sandeep Sukhani	0e5da205a6	structured metadata: track usage of structured metadata in queries (#11505 ) What this PR does / why we need it: Adds support for tracking queries referencing structured metadata. It tracks the following kinds of references: * Fields in structured metadata used as label filters, `drop`/`keep` stages etc. in the query. * Fields in structured metadata used in metric queries like `uwrap` and `by` or `without` clauses in aggregations. Checklist - [x] Tests updated	2 years ago
Christian Haudum	62176339c4	Bloom querying: Propagate line filters from querier to bloom filter (#11492 ) In order to query the bloom filters with the search strings from the user query, we need to propagate the line filters through the different implementations of the store, namely through the GetChunks function. In order to avoid converting data structures, the line filter from the syntax tree is used as custom protobuf type, because it is passed from querier to index gateway and from index gateway to bloom gateway. So far, the line filters request have not been tokenized to n-grams. This PR adds the ability to read the n-gram length from the block schema at query time and tokenizes the line filters from the input just ahead of searching the block. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	2 years ago
Karsten Jeschkies	9aae25008d	Optimize series response format by using repeated fileds. (#11498 ) What this PR does / why we need it: The Protobuf map type is encodied as a repeated field of map entries. Decoding them to a slice is much faster than decoding them into a map. Since Loki is not using the fast key check for a map we can use the slice decoding. This change also allows us to decode the JSON directly into the right protobuf struct. This doulbes the JSON decoding speed and reduces the memory pressure by ~40%. ``` › go test -bench=. -run=^$ -count=10 ./pkg/querier/queryrange > before.log › go test -bench=. -run=^$ -count=10 ./pkg/querier/queryrange > after.log › benchstat before.log after.log goos: darwin goarch: arm64 pkg: github.com/grafana/loki/pkg/querier/queryrange │ before.log │ after.log │ │ sec/op │ sec/op vs base │ ResponseMerge/mergeStreams_unlimited-10 32.36m ± 0% 32.63m ± 2% ~ (p=0.393 n=10) ResponseMerge/mergeOrderedNonOverlappingStreams_unlimited-10 1.050m ± 1% 1.080m ± 3% +2.84% (p=0.005 n=10) ResponseMerge/mergeStreams_limited-10 33.02m ± 0% 32.60m ± 1% -1.29% (p=0.004 n=10) ResponseMerge/mergeOrderedNonOverlappingStreams_limited-10 15.11m ± 0% 15.07m ± 0% ~ (p=0.075 n=10) _CodecDecodeLogs-10 4.395m ± 1% 4.364m ± 0% -0.72% (p=0.005 n=10) _CodecDecodeSamples-10 16.97m ± 0% 16.84m ± 2% -0.77% (p=0.023 n=10) _CodecDecodeSeries/application/vnd.google.protobuf-10 745.8µ ± 8% 736.8µ ± 12% ~ (p=0.739 n=10) _CodecDecodeSeries/application/json;_charset=utf-8-10 15.37m ± 1% 10.60m ± 0% -31.03% (p=0.000 n=10) _MergeResponses-10 1186.9m ± 2% 149.8m ± 1% -87.38% (p=0.000 n=10) _UnwrapSeries-10 9.399m ± 1% 4.049m ± 0% -56.92% (p=0.000 n=10) _DecodeMergeEncodeCycle-10 666.0m ± 3% 194.6m ± 0% -70.79% (p=0.000 n=10) geomean 18.87m 12.51m -33.70% │ before.log │ after.log │ │ B/op │ B/op vs base │ _CodecDecodeLogs-10 3.649Mi ± 0% 3.649Mi ± 0% ~ (p=0.364 n=10) _CodecDecodeSamples-10 18.12Mi ± 0% 18.12Mi ± 0% ~ (p=0.926 n=10) _CodecDecodeSeries/application/vnd.google.protobuf-10 7.647Mi ± 0% 7.647Mi ± 0% ~ (p=0.587 n=10) _CodecDecodeSeries/application/json;_charset=utf-8-10 27.94Mi ± 0% 16.99Mi ± 0% -39.18% (p=0.000 n=10) _MergeResponses-10 2.362Mi ± 0% 2.408Mi ± 0% +1.98% (p=0.000 n=10) _UnwrapSeries-10 19.495Mi ± 0% 8.595Mi ± 0% -55.91% (p=0.000 n=10) _DecodeMergeEncodeCycle-10 772.3Mi ± 0% 772.3Mi ± 0% ~ (p=0.912 n=10) geomean 17.50Mi 14.54Mi -16.91% │ before.log │ after.log │ │ allocs/op │ allocs/op vs base │ _CodecDecodeLogs-10 41.10k ± 0% 41.10k ± 0% ~ (p=1.000 n=10) ¹ _CodecDecodeSamples-10 411.9k ± 0% 411.9k ± 0% ~ (p=1.000 n=10) _CodecDecodeSeries/application/vnd.google.protobuf-10 32.00 ± 0% 32.00 ± 0% ~ (p=1.000 n=10) ¹ _CodecDecodeSeries/application/json;_charset=utf-8-10 304.2k ± 0% 298.1k ± 0% -2.01% (p=0.000 n=10) _MergeResponses-10 100.1k ± 0% 100.1k ± 0% -0.00% (p=0.002 n=10) _UnwrapSeries-10 201.1k ± 0% 198.0k ± 0% -1.54% (p=0.000 n=10) _DecodeMergeEncodeCycle-10 203.1k ± 0% 203.1k ± 0% ~ (p=0.621 n=10) geomean 48.95k 48.70k -0.51% ¹ all samples are equal ``` Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Travis Patterson	be71a80b15	Implement hooks to instrument query pipelines (#11493 ) This PR implements interfaces to inject new pipelines/extractors into the query path of queriers and ingesters.	2 years ago
Matthew Penner	a91f3f11b3	frontend: Use `net.JoinHostPort` to support IPv6 addresses (#10650 ) Signed-off-by: Matthew Penner <me@matthewp.io> Co-authored-by: Periklis Tsirakidis <periklis@redhat.com> Co-authored-by: J Stickler <julie.stickler@grafana.com>	2 years ago
Karsten Jeschkies	b18078827e	Map rpc Status back to user error (#11449 ) What this PR does / why we need it: Errors forwarded from the querier to the frontend would be reported with the wrong error code and message. This change fixes this. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	2 years ago
Karsten Jeschkies	8dde7b9d49	Support tail requests with protobuf encoding. (#11426 ) What this PR does / why we need it: The `TailRequest` would use `bytes plan` instead of `Plan plan`. The former is not well supported in gogoprotobuf. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	3 years ago
Karsten Jeschkies	f67fff3eb2	Approximate `quantile_over_time` (#10417 ) What this PR does / why we need it: This change shards `quantile_over_time` queries using t-digest or DDSketch approximations. It can be enabled with `querier.shard_aggregations=quantile_over_time`. Outstanding - [x] Replace generic return type of `StepEvaluator` with interface `StepResult`. - [x] Send mapped query with quantile sketch expression from frontend to querier over the wire. - [x] Serialize sketches. See https://github.com/influxdata/tdigest/issues/34 - [x] Add feature flag. Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [x] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [x] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [x] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) --------- Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com>	3 years ago
Karsten Jeschkies	51567addc9	Wrap VolumeResponse. (#11402 ) What this PR does / why we need it: This fixes a regression in `frontend.encoding=protobuf`: ``` body rpc error: code = Internal desc = invalid response format, got (queryrange.VolumeResponse) ``` Checklist* - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	3 years ago
Karsten Jeschkies	5b8d0e666d	Remove querier wait time metric. (#11233 ) What this PR does / why we need it: We would like to know how long a querier worker is idle to understand if workstealing would have an impact. The original metric was too noisy and its cardinality was too high. Instead, we are going to log the wait time. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Co-authored-by: Danny Kopping <dannykopping@gmail.com>	3 years ago
Salva Corts	489ac8d529	Extract results cache into new pkg (#11343 ) What this PR does / why we need it: This extracts the results cache from `queryrangebase` into its own pkg so we can reuse it in other components such as the bloom-gateway without having to import `queryrangebase`. - Most of the logic inside `pkg/querier/queryrange/queryrangebase/results_cache.go` now lives in `pkg/storage/chunk/cache/results_cache/cache.go`. - Some of the tests in `pkg/querier/queryrange/queryrangebase/results_cache.go` are moved into pkg/storage/chunk/cache/results_cache/cache_test.go. - Note that here we don't have access to the types we use in `queryrangebase` so we created a new set of mock request/response types to test with.	3 years ago
Karsten Jeschkies	b05544a939	Remove obsolete empty test in middleware. (#11304 ) What this PR does / why we need it: A check for `len(queryRangeMiddleware) > 0` is always true so we can remove it. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	3 years ago
Salva Corts	10210b884c	Categorized Labels: Return empty JSON object if no parsed nor structured metadata labels (#11325 ) This is a followup PR for https://github.com/grafana/loki/pull/10419 wrt this comment https://github.com/grafana/loki/pull/10419#discussion_r1406285386. If there is no parsed nor structured-metadata labels in a given entry, and the categorize-labels header is set, add an empty object to the entry array. For example, we currently return: ```json { "data": { "encodingFlags": [ "categorize-labels" ], "result": [ { "stream": { "agent": "promtail", "filename": "/var/log/nginx/json_access.log", "host": "appfelstrudel", "job": "nginx_access_log" }, "values": [ [ "1701096036028751750", "example line" ] ] } ] } } ``` But we want: ```json { "data": { "encodingFlags": [ "categorize-labels" ], "result": [ { "stream": { "agent": "promtail", "filename": "/var/log/nginx/json_access.log", "host": "appfelstrudel", "job": "nginx_access_log" }, "values": [ [ "1701096036028751750", "example line", {} <<<--- WE WANT THIS ] ] } ] } } ```	3 years ago
Christian Haudum	d62d4e37d1	Bloom Gateway: Implement chunk filtering using workers that multiplex requests (#11181 ) This change adds an internal request queue to the bloom gateway. Instead of executing every single request individually, which involves resolving bloom blocks, downloading them if needed and executing the chunk filtering, requests are now enqueued to the internal, per-tenant queue. The queue implements the same shuffle sharding mechanism as the queue in the query scheduler component. Workers then dequeue a batch of requests for a single tenant and multiplex them into a single processing task for each day. This has the big advantage that the chunks of multiple requests can be processed in a single sequential scan through a set a bloom blocks, without needing to skip back and forth within the binary stream of the block. --------- Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	3 years ago
Karsten Jeschkies	e6940691c9	Set query plan when copying LokiRequest (#11291 ) What this PR does / why we need it: The recent change https://github.com/grafana/loki/pull/11246 requires that `LokiRequest.Plan` is always set. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`)	3 years ago
Karsten Jeschkies	5b97fcfd93	Send query plan to querier. (#11246 ) What this PR does / why we need it: Following https://github.com/grafana/loki/pull/11123 and in order to enable https://github.com/grafana/loki/pull/10417 the query frontend should send the serialized LogQL AST instead of the query string to the queriers. This enables the frontend to change the AST and inject expressions that are not expressible in LogQL. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com>	3 years ago
Karsten Jeschkies	8d34f857bc	Propagate trace ID with HTTP gRPC request. (#11251 ) The changes in https://github.com/grafana/loki/pull/10688 did not propage the trace ID from the context. `Frontend.RoundTripGRPC` would inject the trace ID into the request. That's not done in `Frontend.Do`. This changes extends the `codec.EncodeRequest` to inject the trace ID there. This is more inline with other metadata.	3 years ago
Kaviraj Kanagaraj	30d0030bf9	inflight-logging: Add extra metadata to inflight requests logging (#11243 ) What this PR does / why we need it: logging: Add extra metadata to inflight requests This adds extra metadata (similar to what we have in `metrics.go`) but for queries in in-flight (both started and retrying) Changes: Adds following data 1. Query Hash 2. Start and End time 3. Start and End delta 4. Length of the query 5. Moved the helper util to `queryutil` package because of cyclic dependencies with `logql` package. Which issue(s) this PR fixes: Fixes #<issue number> Special notes for your reviewer: Find the screenshots of log entries looks like (both in `retry.go` and `roundtrip.go`) ![Screenshot 2023-11-16 at 13 01 32](https://github.com/grafana/loki/assets/3735252/177e97ed-6ee8-41dd-b088-2e4f49562ba0) ![Screenshot 2023-11-16 at 13 02 15](https://github.com/grafana/loki/assets/3735252/fb328a37-dbe3-483e-b083-f21327858029) Checklist - [x] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com>	3 years ago
Angus Dippenaar	258a8b3108	Update nix configuration (#8452 ) Fix nix configuration (mainly failing test), and break up various binaries (ie. logcli, promtail, loki, etc.) into their own pakcages. --------- Co-authored-by: Trevor Whitney <trevorjwhitney@gmail.com>	3 years ago
Owen Diehl	265018b729	populate empty resonse for IndexStatsResponse and VolumeResponse (#11209 ) Fixes a panic when the underlying response struct is accessed but not populated after an out-of-bounds request is short-circuited via `NewEmptyResponse` [here](https://github.com/grafana/loki/blob/main/pkg/querier/queryrange/limits.go#L155-L164). This PR ensures the embedded types are not nil in accordance with the other variants in this function.	3 years ago
Karsten Jeschkies	05c4b77ed0	Define QueryResponse and QueryRequest protobufs. (#10956 ) What this PR does / why we need it: This will be a follow up to https://github.com/grafana/loki/pull/10688 finally switching over to protos. Hang on tight! Everything is behind the feature flag `-frontend.encoding=protobuf` which will disable the transcoding to HTTP and HTTPgRPC. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [x] Tests updated - [x] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) --------- Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Danny Kopping <dannykopping@gmail.com>	3 years ago
Karsten Jeschkies	979530b6b9	Propagate query metrics and cache num information. (#11176 ) What this PR does / why we need it: https://github.com/grafana/loki/pull/10858 removed the extraction of the query time header on the querier side and the generation of the cache number. This change adds them back and uses the headers of the response format. Checklist - [ ] Reviewed the [`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md) guide (required) - [ ] Documentation added - [ ] Tests updated - [ ] `CHANGELOG.md` updated - [ ] If the change is worth mentioning in the release notes, add `add-to-release-notes` label - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/setup/upgrade/_index.md` - [ ] For Helm chart changes bump the Helm chart version in `production/helm/loki/Chart.yaml` and update `production/helm/loki/CHANGELOG.md` and `production/helm/loki/README.md`. [Example PR](`d10549e3ec`) - [ ] If the change is deprecating or removing a configuration option, update the `deprecated-config.yaml` and `deleted-config.yaml` files respectively in the `tools/deprecated-config-checker` directory. [Example PR](`0d4416a4b0`) --------- Signed-off-by: Edward Welch <edward.welch@grafana.com> Co-authored-by: Edward Welch <edward.welch@grafana.com>	3 years ago
Trevor Whitney	b1f9be5171	always align volume range timestamp to end of step (#11136 ) What this PR does / why we need it: We had originally assumed that it would be weird for a user to get back a timeseries response from `volume_range` that didn't include a datapoint with a timestamp at the start of their requested range. This was a bad assumption. The `volume_range` endpoint is inherently doing aggregations. For each step, a datapoint is calculated representing the percent of chunk volumes that the selector appeared in. It therefore stands to reason that the steps volume was not that value until the end of the step time range, as we are to assume volume is monotonically increasing. The fact that we were using the start of the range made it difficult to turn this data into a per-second rate, which this PR aims to fix. Which issue(s) this PR fixes: Fixes #11134	3 years ago

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