mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-15 08:23:34 +01:00
app/vmalert: autogenerate ALERTS_FOR_STATE time series for alerting rules with for: 0 (#5680)
* app/vmalert: autogenerate `ALERTS_FOR_STATE` time series for alerting rules with `for: 0` Previously, `ALERTS_FOR_STATE` was generated only for alerts with `for > 0`. This behavior differs from Prometheus behavior - it generates ALERTS_FOR_STATE time series for alerting rules with `for: 0` as well. Such time series can be useful for tracking the moment when alerting rule became active. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5648 https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3056 Signed-off-by: hagen1778 <roman@victoriametrics.com> * app/vmalert: support ALERTS_FOR_STATE in `replay` mode Signed-off-by: hagen1778 <roman@victoriametrics.com> --------- Signed-off-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
Roman Khavronenko
Aliaksandr Valialkin
parent
362e52f880
commit
a2f83115ae
@ -68,6 +68,7 @@ publish-vmalert:
|
||||
|
||||
test-vmalert:
|
||||
go test -v -race -cover ./app/vmalert -loggerLevel=ERROR
|
||||
go test -v -race -cover ./app/vmalert/rule
|
||||
go test -v -race -cover ./app/vmalert/templates
|
||||
go test -v -race -cover ./app/vmalert/datasource
|
||||
go test -v -race -cover ./app/vmalert/notifier
|
||||
|
||||
@ -324,16 +324,6 @@ func (ar *AlertingRule) execRange(ctx context.Context, start, end time.Time) ([]
|
||||
return nil, fmt.Errorf("failed to create alert: %w", err)
|
||||
}
|
||||
|
||||
// if alert is instant, For: 0
|
||||
if ar.For == 0 {
|
||||
a.State = notifier.StateFiring
|
||||
for i := range s.Values {
|
||||
result = append(result, ar.alertToTimeSeries(a, s.Timestamps[i])...)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// if alert with For > 0
|
||||
prevT := time.Time{}
|
||||
for i := range s.Values {
|
||||
at := time.Unix(s.Timestamps[i], 0)
|
||||
@ -354,6 +344,10 @@ func (ar *AlertingRule) execRange(ctx context.Context, start, end time.Time) ([]
|
||||
a.Start = at
|
||||
}
|
||||
prevT = at
|
||||
if ar.For == 0 {
|
||||
// rules with `for: 0` are always firing when they have Value
|
||||
a.State = notifier.StateFiring
|
||||
}
|
||||
result = append(result, ar.alertToTimeSeries(a, s.Timestamps[i])...)
|
||||
|
||||
// save alert's state on last iteration, so it can be used on the next execRange call
|
||||
@ -559,9 +553,9 @@ func (ar *AlertingRule) newAlert(m datasource.Metric, ls *labelSet, start time.T
|
||||
}
|
||||
|
||||
const (
|
||||
// alertMetricName is the metric name for synthetic alert timeseries.
|
||||
// alertMetricName is the metric name for time series reflecting the alert state.
|
||||
alertMetricName = "ALERTS"
|
||||
// alertForStateMetricName is the metric name for 'for' state of alert.
|
||||
// alertForStateMetricName is the metric name for time series reflecting the moment of time when alert became active.
|
||||
alertForStateMetricName = "ALERTS_FOR_STATE"
|
||||
|
||||
// alertNameLabel is the label name indicating the name of an alert.
|
||||
@ -576,12 +570,10 @@ const (
|
||||
|
||||
// alertToTimeSeries converts the given alert with the given timestamp to time series
|
||||
func (ar *AlertingRule) alertToTimeSeries(a *notifier.Alert, timestamp int64) []prompbmarshal.TimeSeries {
|
||||
var tss []prompbmarshal.TimeSeries
|
||||
tss = append(tss, alertToTimeSeries(a, timestamp))
|
||||
if ar.For > 0 {
|
||||
tss = append(tss, alertForToTimeSeries(a, timestamp))
|
||||
return []prompbmarshal.TimeSeries{
|
||||
alertToTimeSeries(a, timestamp),
|
||||
alertForToTimeSeries(a, timestamp),
|
||||
}
|
||||
return tss
|
||||
}
|
||||
|
||||
func alertToTimeSeries(a *notifier.Alert, timestamp int64) prompbmarshal.TimeSeries {
|
||||
|
||||
@ -28,20 +28,26 @@ func TestAlertingRule_ToTimeSeries(t *testing.T) {
|
||||
}{
|
||||
{
|
||||
newTestAlertingRule("instant", 0),
|
||||
¬ifier.Alert{State: notifier.StateFiring},
|
||||
¬ifier.Alert{State: notifier.StateFiring, ActiveAt: timestamp.Add(time.Second)},
|
||||
[]prompbmarshal.TimeSeries{
|
||||
newTimeSeries([]float64{1}, []int64{timestamp.UnixNano()}, map[string]string{
|
||||
"__name__": alertMetricName,
|
||||
alertStateLabel: notifier.StateFiring.String(),
|
||||
}),
|
||||
newTimeSeries([]float64{float64(timestamp.Add(time.Second).Unix())},
|
||||
[]int64{timestamp.UnixNano()},
|
||||
map[string]string{
|
||||
"__name__": alertForStateMetricName,
|
||||
}),
|
||||
},
|
||||
},
|
||||
{
|
||||
newTestAlertingRule("instant extra labels", 0),
|
||||
¬ifier.Alert{State: notifier.StateFiring, Labels: map[string]string{
|
||||
"job": "foo",
|
||||
"instance": "bar",
|
||||
}},
|
||||
¬ifier.Alert{State: notifier.StateFiring, ActiveAt: timestamp.Add(time.Second),
|
||||
Labels: map[string]string{
|
||||
"job": "foo",
|
||||
"instance": "bar",
|
||||
}},
|
||||
[]prompbmarshal.TimeSeries{
|
||||
newTimeSeries([]float64{1}, []int64{timestamp.UnixNano()}, map[string]string{
|
||||
"__name__": alertMetricName,
|
||||
@ -49,19 +55,33 @@ func TestAlertingRule_ToTimeSeries(t *testing.T) {
|
||||
"job": "foo",
|
||||
"instance": "bar",
|
||||
}),
|
||||
newTimeSeries([]float64{float64(timestamp.Add(time.Second).Unix())},
|
||||
[]int64{timestamp.UnixNano()},
|
||||
map[string]string{
|
||||
"__name__": alertForStateMetricName,
|
||||
"job": "foo",
|
||||
"instance": "bar",
|
||||
}),
|
||||
},
|
||||
},
|
||||
{
|
||||
newTestAlertingRule("instant labels override", 0),
|
||||
¬ifier.Alert{State: notifier.StateFiring, Labels: map[string]string{
|
||||
alertStateLabel: "foo",
|
||||
"__name__": "bar",
|
||||
}},
|
||||
¬ifier.Alert{State: notifier.StateFiring, ActiveAt: timestamp.Add(time.Second),
|
||||
Labels: map[string]string{
|
||||
alertStateLabel: "foo",
|
||||
"__name__": "bar",
|
||||
}},
|
||||
[]prompbmarshal.TimeSeries{
|
||||
newTimeSeries([]float64{1}, []int64{timestamp.UnixNano()}, map[string]string{
|
||||
"__name__": alertMetricName,
|
||||
alertStateLabel: notifier.StateFiring.String(),
|
||||
}),
|
||||
newTimeSeries([]float64{float64(timestamp.Add(time.Second).Unix())},
|
||||
[]int64{timestamp.UnixNano()},
|
||||
map[string]string{
|
||||
"__name__": alertForStateMetricName,
|
||||
alertStateLabel: "foo",
|
||||
}),
|
||||
},
|
||||
},
|
||||
{
|
||||
@ -367,7 +387,7 @@ func TestAlertingRule_ExecRange(t *testing.T) {
|
||||
{Values: []float64{1}, Timestamps: []int64{1}},
|
||||
},
|
||||
[]*notifier.Alert{
|
||||
{State: notifier.StateFiring},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(1, 0)},
|
||||
},
|
||||
nil,
|
||||
},
|
||||
@ -378,8 +398,9 @@ func TestAlertingRule_ExecRange(t *testing.T) {
|
||||
},
|
||||
[]*notifier.Alert{
|
||||
{
|
||||
Labels: map[string]string{"name": "foo"},
|
||||
State: notifier.StateFiring,
|
||||
Labels: map[string]string{"name": "foo"},
|
||||
State: notifier.StateFiring,
|
||||
ActiveAt: time.Unix(1, 0),
|
||||
},
|
||||
},
|
||||
nil,
|
||||
@ -390,9 +411,9 @@ func TestAlertingRule_ExecRange(t *testing.T) {
|
||||
{Values: []float64{1, 1, 1}, Timestamps: []int64{1e3, 2e3, 3e3}},
|
||||
},
|
||||
[]*notifier.Alert{
|
||||
{State: notifier.StateFiring},
|
||||
{State: notifier.StateFiring},
|
||||
{State: notifier.StateFiring},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(1e3, 0)},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(2e3, 0)},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(3e3, 0)},
|
||||
},
|
||||
nil,
|
||||
},
|
||||
@ -460,6 +481,20 @@ func TestAlertingRule_ExecRange(t *testing.T) {
|
||||
For: time.Second,
|
||||
}},
|
||||
},
|
||||
{
|
||||
newTestAlertingRuleWithEvalInterval("firing=>inactive=>inactive=>firing=>firing", 0, time.Second),
|
||||
[]datasource.Metric{
|
||||
{Values: []float64{1, 1, 1, 1}, Timestamps: []int64{1, 4, 5, 6}},
|
||||
},
|
||||
[]*notifier.Alert{
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(1, 0)},
|
||||
// It is expected for ActiveAT to remain the same while rule continues to fire in each iteration
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(4, 0)},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(4, 0)},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(4, 0)},
|
||||
},
|
||||
nil,
|
||||
},
|
||||
{
|
||||
newTestAlertingRule("for=>pending=>firing=>pending=>firing=>pending", time.Second),
|
||||
[]datasource.Metric{
|
||||
@ -534,21 +569,25 @@ func TestAlertingRule_ExecRange(t *testing.T) {
|
||||
},
|
||||
},
|
||||
[]*notifier.Alert{
|
||||
{State: notifier.StateFiring, Labels: map[string]string{
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, Labels: map[string]string{
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(1, 0),
|
||||
Labels: map[string]string{
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(100, 0),
|
||||
Labels: map[string]string{
|
||||
"source": "vm",
|
||||
}},
|
||||
//
|
||||
{State: notifier.StateFiring, Labels: map[string]string{
|
||||
"foo": "bar",
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, Labels: map[string]string{
|
||||
"foo": "bar",
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(1, 0),
|
||||
Labels: map[string]string{
|
||||
"foo": "bar",
|
||||
"source": "vm",
|
||||
}},
|
||||
{State: notifier.StateFiring, ActiveAt: time.Unix(5, 0),
|
||||
Labels: map[string]string{
|
||||
"foo": "bar",
|
||||
"source": "vm",
|
||||
}},
|
||||
},
|
||||
nil,
|
||||
},
|
||||
@ -1095,6 +1134,12 @@ func newTestAlertingRule(name string, waitFor time.Duration) *AlertingRule {
|
||||
return &rule
|
||||
}
|
||||
|
||||
func newTestAlertingRuleWithEvalInterval(name string, waitFor, evalInterval time.Duration) *AlertingRule {
|
||||
rule := newTestAlertingRule(name, waitFor)
|
||||
rule.EvalInterval = evalInterval
|
||||
return rule
|
||||
}
|
||||
|
||||
func newTestAlertingRuleWithKeepFiring(name string, waitFor, keepFiringFor time.Duration) *AlertingRule {
|
||||
rule := newTestAlertingRule(name, waitFor)
|
||||
rule.KeepFiringFor = keepFiringFor
|
||||
|
||||
@ -70,6 +70,7 @@ The sandbox cluster installation is running under the constant load generated by
|
||||
* BUGFIX: `vmstorage`: properly expire `storage/prefetchedMetricIDs` cache. Previously this cache was never expired, so it could grow big under [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate). This could result in increasing CPU load over time.
|
||||
* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): check `-external.url` schema when starting vmalert, must be `http` or `https`. Before, alertmanager could reject alert notifications if `-external.url` contained no or wrong schema.
|
||||
* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): automatically add `exported_` prefix for original evaluation result label if it's conflicted with external or reserved one, previously it was overridden. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5161).
|
||||
* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): autogenerate `ALERTS_FOR_STATE` time series for alerting rules with `for: 0`. Previously, `ALERTS_FOR_STATE` was generated only for alerts with `for > 0`. The change aligns with Prometheus behavior. See more details in [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5648).
|
||||
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): consistently sort results for `q1 or q2` query, so they do not change colors with each refresh in Grafana. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5393).
|
||||
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): properly return results from [bottomk](https://docs.victoriametrics.com/MetricsQL.html#bottomk) and `bottomk_*()` functions when some of these results contain NaN values. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5506). Thanks to @xiaozongyang for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5509).
|
||||
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): properly handle queries, which wrap [rollup functions](https://docs.victoriametrics.com/MetricsQL.html#rollup-functions) with multiple arguments without explicitly specified lookbehind window in square brackets into [aggregate functions](https://docs.victoriametrics.com/MetricsQL.html#aggregate-functions). For example, `sum(quantile_over_time(0.5, process_resident_memory_bytes))` was resulting to `expecting at least 2 args to ...; got 1 args` error. Thanks to @atykhyy for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5414).
|
||||
|
||||
Loading…
Reference in New Issue
Block a user