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Alerting: Refactor state manager Warm method to accept instance store as an argument (#95098)

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This commit is contained in:
Alexander Akhmetov 2024-10-22 09:45:50 +02:00 committed by GitHub
parent cfc40b23d7
commit d0481bb568
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4 changed files with 17 additions and 11 deletions
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2
pkg/services/ngalert/ngalert.go
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@ -552,7 +552,7 @@ func (ng *AlertNG) Run(ctx context.Context) error {
// Also note that this runs synchronously to ensure state is loaded
// before rule evaluation begins, hence we use ctx and not subCtx.
//
ng.stateManager.Warm(ctx, ng.store)
ng.stateManager.Warm(ctx, ng.store, ng.store)
children.Go(func() error {
return ng.schedule.Run(subCtx)

6
pkg/services/ngalert/state/manager.go
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@ -123,7 +123,7 @@ func (st *Manager) Run(ctx context.Context) error {
return nil
}
func (st *Manager) Warm(ctx context.Context, rulesReader RuleReader) {
func (st *Manager) Warm(ctx context.Context, rulesReader RuleReader, instanceReader InstanceReader) {
if st.instanceStore == nil {
st.log.Info("Skip warming the state because instance store is not configured")
return
@ -131,7 +131,7 @@ func (st *Manager) Warm(ctx context.Context, rulesReader RuleReader) {
startTime := time.Now()
st.log.Info("Warming state cache for startup")
orgIds, err := st.instanceStore.FetchOrgIds(ctx)
orgIds, err := instanceReader.FetchOrgIds(ctx)
if err != nil {
st.log.Error("Unable to fetch orgIds", "error", err)
}
@ -175,7 +175,7 @@ func (st *Manager) Warm(ctx context.Context, rulesReader RuleReader) {
cmd := ngModels.ListAlertInstancesQuery{
RuleOrgID: orgId,
}
alertInstances, err := st.instanceStore.ListAlertInstances(ctx, &cmd)
alertInstances, err := instanceReader.ListAlertInstances(ctx, &cmd)
if err != nil {
st.log.Error("Unable to fetch previous state", "error", err)
}

10
pkg/services/ngalert/state/manager_test.go
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@ -230,7 +230,7 @@ func TestWarmStateCache(t *testing.T) {
Log: log.New("ngalert.state.manager"),
}
st := state.NewManager(cfg, state.NewNoopPersister())
st.Warm(ctx, dbstore)
st.Warm(ctx, dbstore, dbstore)
t.Run("instance cache has expected entries", func(t *testing.T) {
for _, entry := range expectedEntries {
@ -277,7 +277,7 @@ func TestDashboardAnnotations(t *testing.T) {
"test2": "{{ $labels.instance_label }}",
})
st.Warm(ctx, dbstore)
st.Warm(ctx, dbstore, dbstore)
bValue := float64(42)
cValue := float64(1)
_ = st.ProcessEvalResults(ctx, evaluationTime, rule, eval.Results{{
@ -1813,7 +1813,7 @@ func TestStaleResultsHandler(t *testing.T) {
Log: log.New("ngalert.state.manager"),
}
st := state.NewManager(cfg, state.NewNoopPersister())
st.Warm(ctx, dbstore)
st.Warm(ctx, dbstore, dbstore)
existingStatesForRule := st.GetStatesForRuleUID(rule.OrgID, rule.UID)
// We have loaded the expected number of entries from the db
@ -2073,7 +2073,7 @@ func TestDeleteStateByRuleUID(t *testing.T) {
Log: log.New("ngalert.state.manager"),
}
st := state.NewManager(cfg, state.NewNoopPersister())
st.Warm(ctx, dbstore)
st.Warm(ctx, dbstore, dbstore)
q := &models.ListAlertInstancesQuery{RuleOrgID: rule.OrgID, RuleUID: rule.UID}
alerts, _ := dbstore.ListAlertInstances(ctx, q)
existingStatesForRule := st.GetStatesForRuleUID(rule.OrgID, rule.UID)
@ -2214,7 +2214,7 @@ func TestResetStateByRuleUID(t *testing.T) {
Log: log.New("ngalert.state.manager"),
}
st := state.NewManager(cfg, state.NewNoopPersister())
st.Warm(ctx, dbstore)
st.Warm(ctx, dbstore, dbstore)
q := &models.ListAlertInstancesQuery{RuleOrgID: rule.OrgID, RuleUID: rule.UID}
alerts, _ := dbstore.ListAlertInstances(ctx, q)
existingStatesForRule := st.GetStatesForRuleUID(rule.OrgID, rule.UID)

10
pkg/services/ngalert/state/persist.go
View File

@ -9,8 +9,8 @@ import (
// InstanceStore represents the ability to fetch and write alert instances.
type InstanceStore interface {
FetchOrgIds(ctx context.Context) ([]int64, error)
ListAlertInstances(ctx context.Context, cmd *models.ListAlertInstancesQuery) ([]*models.AlertInstance, error)
InstanceReader
SaveAlertInstance(ctx context.Context, instance models.AlertInstance) error
DeleteAlertInstances(ctx context.Context, keys ...models.AlertInstanceKey) error
// SaveAlertInstancesForRule overwrites the state for the given rule.
@ -19,6 +19,12 @@ type InstanceStore interface {
FullSync(ctx context.Context, instances []models.AlertInstance) error
}
// InstanceReader provides methods to fetch alert instances.
type InstanceReader interface {
FetchOrgIds(ctx context.Context) ([]int64, error)
ListAlertInstances(ctx context.Context, cmd *models.ListAlertInstancesQuery) ([]*models.AlertInstance, error)
}
// RuleReader represents the ability to fetch alert rules.
type RuleReader interface {
ListAlertRules(ctx context.Context, query *models.ListAlertRulesQuery) (models.RulesGroup, error)