5 Commits (1f119e1356032e6a85785c4d11ce8eb972b5123a)

Author	SHA1	Message	Date
Travis Patterson	1f119e1356	Prevent GetFactorOfTime from returning NaN (#9602) ... `GetFactorOfTime` is used to calculate overlaps with chunk time ranges -- particularly calls to `stats`. When a chunk has only one entry, it's `start time == end time` and this `GetFactorOfTime` returns `NaN`. The stats calculation is `uint64(total chunk bytes * factor)`. When `factor` is `NaN`: `uint64(total chunk bytes * factor) == uint64(math.Nan()) == 9223372036854775808` `uint64(math.Nan()) == 9223372036854775808` is an implementation detail of golang.	2 years ago
Owen Diehl	2efd059b49	Slight improvements to `GetFactorOfTime` (#9473) ... * correctly returns zero for non-overlapping data * adds tests	2 years ago
Salva Corts	fd16425062	Cache index stats requests (#8972) ... **What this PR does / why we need it**: As described in https://github.com/grafana/loki/issues/8973, we are substantially increasing the load of index stat requests we sent to our index gateways. Many of these requests should be easily re-used by caching them. This PR adds caching for index stat requests by reusing the results cache. Here's a demo ([source][1]):  **Which issue(s) this PR fixes**: Fixes https://github.com/grafana/loki/issues/8973 **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 - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/upgrading/_index.md` [1]: https://ops.grafana-ops.net/d/afcaef21-e5ad-49e7-ab06-42a9d7d915eb/index-stats?orgId=1&var-datasource=dev-cortex&var-cluster=dev-eu-west-2&var-namespace=loki-dev-009&var-loki_datasource=Grafana%20Logging&from=1680259907288&to=1680260431814&var-operation=All --------- Co-authored-by: Owen Diehl <ow.diehl@gmail.com>	2 years ago
Sandeep Sukhani	7f298ff72f	avoid using bloomfilters for chunks in stats calls by avoiding duplicates (#7209) ... **What this PR does / why we need it**: Avoid using bloomfilters for chunks deduplication in tsdb `Stats` calls by avoiding fetching duplicate entries. The idea is to split and align queries by [ObjectStorageIndexRequiredPeriod](61794710a7/pkg/storage/config/schema_config.go (L47)) and make each split process chunks with a start time >= start time of the table interval. In other terms, table interval that contains start time of the chunk, owns it. For e.g. if the table interval is 10s, and we have chunks 5-7, 8-12, 11-13. Query with range 6-15 would be split into 6-10, 10-15. query1 would process chunks 5-7, 8-12 and query2 would process chunks 11-13. This check is not applied for the first split so that we do not eliminate any chunks that overlaps the original query intervals but starts at the previous table. For e.g. if the table interval is 10s, and we have chunks 5-7, 8-13, 14-13. Query with range 11-12 should process chunk 8-13 even though its start time <= start time of table we will query for index. The caveat here is that we will overestimate the data we will be processing if the index is not compacted yet since it could have duplicate chunks when RF > 1. I think it is okay since the Stats call is just an estimation and need not be accurate. Removing all the extra processing saves us quite a bit of CPU and memory, as seen from the benchmark comparison between the two implementations: ``` name old time/op new time/op delta IndexClient_Stats-10 187µs ± 0% 34µs ± 1% -82.00% (p=0.008 n=5+5) name old alloc/op new alloc/op delta IndexClient_Stats-10 61.5kB ± 4% 12.5kB ± 2% -79.69% (p=0.008 n=5+5) name old allocs/op new allocs/op delta IndexClient_Stats-10 1.46k ± 0% 0.48k ± 0% -67.28% (p=0.008 n=5+5) ``` **Checklist** - [x] Tests updated	3 years ago
Kaviraj Kanagaraj	f5d570177a	Fork `cortex/pkg/util` into Loki (#5257) ... * Fork `cortex/pkg/util/validation` Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Fork `pkg/cortex/util/limiter` Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * fork util/extract Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Spanlogger add more helpers Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * getting rid of `cortex/pkg/util` Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * With lesser linter errors Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Make linter happy by removing unused method Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Remove missed util_log Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Fix gofmt and goimports Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Do not touch operator Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Do not touch generated go files Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Format Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Make linters happy Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Fix lambda promtail tools Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Upgrade Dockerfile of lambda promtail Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com> * Add tests for `pkg/util` Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com>	3 years ago
Michel Hollands	c44c12b930	Update Cortex version (#3992) ... * Update Cortex version Signed-off-by: Michel Hollands <michel.hollands@grafana.com> * Changed code due to new Cortex version Signed-off-by: Michel Hollands <michel.hollands@grafana.com> * Run go mod tidy Signed-off-by: Michel Hollands <michel.hollands@grafana.com>	4 years ago
Owen Diehl	306cc72438	Revendor/cortex (#3446) ... * Upgrade Cortex in Loki Signed-off-by: Marco Pracucci <marco@pracucci.com> * proto compat * gofmt * changelog for deprecated querier.split-queries-by-day Co-authored-by: Marco Pracucci <marco@pracucci.com>	4 years ago
Michel Hollands	4f62f36af7	Update cortex to 1 6 (#3131) ... * Update Cortex to recent master (1.5.0+, 35e698bb56d6). Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Ignore set scheduler address. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Make linter happy. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Upgrade cortex to 1.6 Signed-off-by: Michel Hollands <michel.hollands@grafana.com> * Work around issues in go-openapi libraries Signed-off-by: Michel Hollands <michel.hollands@grafana.com> * Clean up go.mod and go.sum Signed-off-by: Michel Hollands <michel.hollands@grafana.com> Co-authored-by: Peter Štibraný <peter.stibrany@grafana.com>	4 years ago
Sandeep Sukhani	501f93fa92	revendor cortex to latest master (#2543)	5 years ago
Aditya C S	0885a49370	configuration doc improvements (#2318)	5 years ago
Owen Diehl	268b7a3d03	bumps cortex & fixes conflicts (#2204) ... * bumps cortex & fixes conflicts * go mod tidy	5 years ago
Peter Štibraný	e4a5360586	Update vendored Cortex to master (1.1+) (#2149) ... * Updated Cortex to master (post 1.1) Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Use new modules system from Cortex. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Treat query errors reported by chunk store as client errors. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Removed obsolete tests. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Fix race for ct variable. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Fix test. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>	5 years ago
Peter Štibraný	ca19683511	loki: update Cortex to master (#1799) ... * Update Cortex to master Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Integrate latest Cortex master changes into loki - Frontend worker now needs to be started explicitly - Lifecycler no longer exits on error. Distributor and Ingester do that now Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Lint Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * go mod tidy Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Update Cortex to master. After 0.7 release, it is now showing as v0.7.1-... Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>	5 years ago
Peter Štibraný	5ae6ea71f8	Update Cortex to master (#1785) ... * Update Cortex to v0.7.0-rc.0 Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Fixed errors after updating to latest master. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Fixed errors after updating to latest master. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Fixed errors after updating to latest master. queryrange.NewRetryMiddleware in NewLogFilterTripperware is now created without metrics, as that would collide with metrics in NewMetricTripperware. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Make sure to start client.Pool before using it. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Use shared singleton memberlist KV. Fix queryrange metrics. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Make lint happy Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * go mod tidy Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Return err early. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>	5 years ago