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Alerting: move getNewState to EvalContext

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This fix alert state update when several evaluation attempts are needed

Signed-off-by: Thibault Chataigner <t.chataigner@criteo.com>
This commit is contained in:
Thibault Chataigner
2018-03-21 20:59:39 +01:00
parent 5d23e7710b
commit 38bdb8dfb3
6 changed files with 101 additions and 105 deletions
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pkg/services/alerting/eval_handler.go
-34
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@@ -7,7 +7,6 @@ import (
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/metrics"
"github.com/grafana/grafana/pkg/models"
)
type DefaultEvalHandler struct {
@@ -66,40 +65,7 @@ func (e *DefaultEvalHandler) Eval(context *EvalContext) {
context.Firing = firing
context.NoDataFound = noDataFound
context.EndTime = time.Now()
context.Rule.State = e.getNewState(context)
elapsedTime := context.EndTime.Sub(context.StartTime).Nanoseconds() / int64(time.Millisecond)
metrics.M_Alerting_Execution_Time.Observe(float64(elapsedTime))
}
// This should be move into evalContext once its been refactored. (Carl Bergquist)
func (handler *DefaultEvalHandler) getNewState(evalContext *EvalContext) models.AlertStateType {
if evalContext.Error != nil {
handler.log.Error("Alert Rule Result Error",
"ruleId", evalContext.Rule.Id,
"name", evalContext.Rule.Name,
"error", evalContext.Error,
"changing state to", evalContext.Rule.ExecutionErrorState.ToAlertState())
if evalContext.Rule.ExecutionErrorState == models.ExecutionErrorKeepState {
return evalContext.PrevAlertState
} else {
return evalContext.Rule.ExecutionErrorState.ToAlertState()
}
} else if evalContext.Firing {
return models.AlertStateAlerting
} else if evalContext.NoDataFound {
handler.log.Info("Alert Rule returned no data",
"ruleId", evalContext.Rule.Id,
"name", evalContext.Rule.Name,
"changing state to", evalContext.Rule.NoDataState.ToAlertState())
if evalContext.Rule.NoDataState == models.NoDataKeepState {
return evalContext.PrevAlertState
} else {
return evalContext.Rule.NoDataState.ToAlertState()
}
}
return models.AlertStateOK
}