grafana/pkg/services/ngalert/eval
Yuri Tseretyan f6a46744a6
Alerting: Support hysteresis command expression (#75189)
Backend: 

* Update the Grafana Alerting engine to provide feedback to HysteresisCommand. The feedback information is stored in state.Manager as a fingerprint of each state. The fingerprint is persisted to the database. Only fingerprints that belong to Pending and Alerting states are considered as "loaded" and provided back to the command.
   - add ResultFingerprint to state.State. It's different from other fingerprints we store in the state because it is calculated from the result labels.
  -  add rule_fingerprint column to alert_instance
   - update alerting evaluator to accept AlertingResultsReader via context, and update scheduler to provide it.
   - add AlertingResultsFromRuleState that implements the new interface in eval package
   - update getExprRequest to patch the hysteresis command.

* Only one "Recovery Threshold" query is allowed to be used in the alert rule and it must be the Condition.


Frontend:

* Add hysteresis option to Threshold in UI. It's called "Recovery Threshold"
* Add test for getUnloadEvaluatorTypeFromCondition
* Hide hysteresis in panel expressions

* Refactor isInvalid and add test for it
* Remove unnecesary React.memo
* Add tests for updateEvaluatorConditions

---------

Co-authored-by: Sonia Aguilar <soniaaguilarpeiron@gmail.com>
2024-01-04 11:47:13 -05:00
..
eval_mocks Chore: use any rather than interface{} (#74066) 2023-08-30 18:46:47 +03:00
context.go Alerting: Support hysteresis command expression (#75189) 2024-01-04 11:47:13 -05:00
eval_bench_test.go Alerting: Improve performance of matching captures (#71828) 2023-07-20 09:07:00 +01:00
eval_test.go Alerting: Support hysteresis command expression (#75189) 2024-01-04 11:47:13 -05:00
eval.go Alerting: Support hysteresis command expression (#75189) 2024-01-04 11:47:13 -05:00
extract_md_test.go Chore: use any rather than interface{} (#74066) 2023-08-30 18:46:47 +03:00
extract_md.go Alerting: Sort NumberCaptureValues in EvaluationString (#71927) 2023-07-19 12:09:21 +01:00
testing.go Alerting: Support hysteresis command expression (#75189) 2024-01-04 11:47:13 -05:00