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Alerting: Create new state history "fanout" backend that dispatches to multiple other backends at once (#64774)

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* Rename RecordStatesAsync to Record

* Rename QueryStates to Query

* Implement fanout writes

* Implement primary queries

* Simplify error joining

* Add test for query path

* Add tests for writes and error propagation

* Allow fanout backend to be configured

* Touch up log messages and config validation

* Consistent documentation for all backend structs

* Parse and normalize backend names more consistently against an enum

* Touch-ups to documentation

* Improve clarity around multi-record blocking

* Keep primary and secondaries more distinct

* Rename fanout backend to multiple backend

* Simplify config keys for multi backend mode
This commit is contained in:
Alexander Weaver
2023-03-17 12:41:18 -05:00
committed by GitHub
parent e01a3e0ea5
commit a31672fa40
18 changed files with 281 additions and 28 deletions
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2
pkg/services/ngalert/state/persist.go
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@@ -26,7 +26,7 @@ type Historian interface {
// RecordStates writes a number of state transitions for a given rule to state history. It returns a channel that
// is closed when writing the state transitions has completed. If an error has occurred, the channel will contain a
// non-nil error.
RecordStatesAsync(ctx context.Context, rule history_model.RuleMeta, states []StateTransition) <-chan error
Record(ctx context.Context, rule history_model.RuleMeta, states []StateTransition) <-chan error
}
// ImageCapturer captures images.