2 Commits (94725e79084aff513b39d9aa42fafa45d6dfe706)

Author	SHA1	Message	Date
Karsten Jeschkies	94725e7908	Define `RequiredLabels` query limit. (#8851) ... **What this PR does / why we need it**: Some end-users can impose great workload on a cluster by selecting too many streams in their queries. We should be able to limit them. Therefore we introduce a new limit `RequiredLabelMatchers` which list label names that must be included in the stream selectors. The implementation follows the same approach as for max query limit. **Which issue(s) this PR fixes**: Fixes #8745 **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 - [ ] Changes that require user attention or interaction to upgrade are documented in `docs/sources/upgrading/_index.md`	3 years ago
Callum Styan	5a85f6647e	Add initial implementation of per-query limits (#8727) ... **What this PR does / why we need it**: Sometimes we want to limit the impact of a single query by imposing limits that are stricter than the current tenant limit. E.g. the maximum query length could be seven days but based on the query or an admins decision a query should just have a maximum length of one day. This is where per-request limits come into play. They are passed via the `X-Loki-Query-Limit` header and extracted into the requests context. It is the responsibility of the operator or admin that the header is valid. **Which issue(s) this PR fixes**: Fixes #8762 **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 - [x] Changes that require user attention or interaction to upgrade are documented in `docs/sources/upgrading/_index.md` --------- Signed-off-by: Callum Styan <callumstyan@gmail.com> Co-authored-by: Karsten Jeschkies <karsten.jeschkies@grafana.com>	3 years ago