4 Commits (0fc934e4ea3ed76b995fd488a5fec3fab5a82886)

Author	SHA1	Message	Date
Salva Corts	8cf921a145	Pass engine opts down to middlewares (#9130) ... **What this PR does / why we need it**: The following middlewares in the query frontend uses a downstream engine: - `NewQuerySizeLimiterMiddleware` and `NewQuerierSizeLimiterMiddleware` - `NewQueryShardMiddleware` - `NewSplitByRangeMiddleware` These were all creating the downstream engine as follows: ```go logql.NewDownstreamEngine(logql.EngineOpts{LogExecutingQuery: false}, DownstreamHandler{next: next, limits: limits}, limits, logger), ``` As can be seen, the [engine options configured in Loki][1] were not being used at all. In the case of `NewQuerySizeLimiterMiddleware`, `NewQuerierSizeLimiterMiddleware` and `NewQueryShardMiddleware`, the downstream engine was created to get the `MaxLookBackPeriod`. When creating a new Downstream Engine as above, the `MaxLookBackPeriod` [would always be the default][2] (30 seconds). This PR fixes this by passing down the engine config to these middlewares, so this config is used to create the new downstream engines. **Which issue(s) this PR fixes**: Adresses some pending tasks from https://github.com/grafana/loki/pull/8670#issuecomment-1507031976. **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]: 1bcf683513/pkg/querier/querier.go (L52) [2]: edc6b0bff7/pkg/logql/engine.go (L136-L140)	3 years ago
Garrett	433d5bf913	fix panics when cloning a special query (#8531) ... Signed-off-by: garrettlish <garrett.li.sh@gmail.com>	3 years ago
Dylan Guedes	15f8f42295	Adapt queryTimeout to be a per-tenant configuration (#6835) ... What this PR does / why we need it: * Add a new per-tenant query timeout * Adds new middleware to query calls. This new middleware will timeout requests based on the new per-tenant query timeout * Add span logs to query calls missing it * Deprecate `engine.timeout` configuration The motivation to change this configuration to be per-tenant instead of global is that it makes sense to alleviate the timeout for particular tenants or make it more strict for others. Especially useful for scenarios where the Loki client doesn't handle context cancellations correctly; in such scenarios, since Loki would still process expensive queries that were canceled, this allows one to have small timeouts for most tenants, which will help mitigate unnecessary work without having a timeout that is too short for important tenants.	3 years ago
Susana Ferreira	0bce8d95a2	Split by range of instant queries (#5662) ... * Split by range on Instant queries POC v3 Co-authored-by: Christian Haudum <christian.haudum@gmail.com> * Handle uneven split by duration * Register SplitByRangeMiddleware in roundtripper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * fixup! Register SplitByRangeMiddleware in roundtripper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * fixup! fixup! Register SplitByRangeMiddleware in roundtripper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Remove rewrite if range aggr has label extraction stage In case a range aggregation has a generic label extraction stage, such as `| json` or `| logfmt` and no group by, we cannot split it, because otherwise the downstream queries would result in too many series. Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Fix linting * Implement range splitting for rate() and bytes_rate() Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Fix linting * Calculate offset of downstream queries correctly if the outer query range contains an offset as well. Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Fix linting * Add optimization by moving the outer label grouping downstream * Add label grouping downstream optimization to rate and bytes_rate expressions * Add changelog entry Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Simplify types in rangemapper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * fixup! Simplify types in rangemapper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Check in Map function if query is splittable by range Since this is the main function of the mapper, we can ensure here that only supported vector/range aggregations are handled. Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Some code cleanups and variable renaming Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Extract duplicate code in range aggr mapping into function Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Add topk to supported splittable vector aggregations Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Check if query is splittable by range before calling Map() Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Add more function comments Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Rename RangeVectorMapper to RangeMapper Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Fix incorrect import due to rebase Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Add equivalence test cases with `logfmt` pipeline stage Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Remove limitation of pushing down vector aggr only if grouping is present Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Remove TestRangeMappingEquivalenceMockMapper test This test is essentially the same as the test Test_SplitRangeVectorMapping, just using a different representation of the result. Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * fixup! Remove limitation of pushing down vector aggr only if grouping is present Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * fixup! fixup! Remove limitation of pushing down vector aggr only if grouping is present Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Fix linter errors Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Better naming of variable Signed-off-by: Christian Haudum <christian.haudum@gmail.com> * Split SplitRangeVectorMapping test into two to have the test for noop queries separated Signed-off-by: Christian Haudum <christian.haudum@gmail.com> Co-authored-by: Christian Haudum <christian.haudum@gmail.com> Co-authored-by: Owen Diehl <ow.diehl@gmail.com>	4 years ago