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Add queue percentage to libbeat metrics #39205

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merged 14 commits into from Apr 30, 2024
Merged

Add queue percentage to libbeat metrics #39205

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c0ed8e4
add queue full percentage metric
fearful-symmetry Apr 24, 2024
cd2c1a5
newline
fearful-symmetry Apr 24, 2024
58ae1e3
add div by zero check
fearful-symmetry Apr 24, 2024
ae8be8a
change name
fearful-symmetry Apr 24, 2024
05b7aa8
linter
fearful-symmetry Apr 25, 2024
9c21206
fix gauge settings
fearful-symmetry Apr 25, 2024
9169610
linter...
fearful-symmetry Apr 25, 2024
bf7955b
change name
fearful-symmetry Apr 25, 2024
0cf3af6
set percentage when we set queue max
fearful-symmetry Apr 29, 2024
a97882b
Merge remote-tracking branch 'upstream/main' into queue-percents
fearful-symmetry Apr 29, 2024
11241cc
change name
fearful-symmetry Apr 29, 2024
dfb8d8b
round numbers
fearful-symmetry Apr 29, 2024
7812bba
Merge remote-tracking branch 'upstream/main' into queue-percents
fearful-symmetry Apr 29, 2024
29da559
Merge remote-tracking branch 'upstream/main' into queue-percents
fearful-symmetry Apr 30, 2024
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21 changes: 18 additions & 3 deletions libbeat/publisher/pipeline/monitoring.go
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Expand Up @@ -67,8 +67,9 @@ type metricsObserverVars struct {
activeEvents *monitoring.Uint

// queue metrics
queueACKed *monitoring.Uint
queueMaxEvents *monitoring.Uint
queueACKed *monitoring.Uint
queueMaxEvents *monitoring.Uint
percentQueueFull *monitoring.Float
}

func newMetricsObserver(metrics *monitoring.Registry) *metricsObserver {
Expand All @@ -92,7 +93,8 @@ func newMetricsObserver(metrics *monitoring.Registry) *metricsObserver {
queueACKed: monitoring.NewUint(reg, "queue.acked"),
queueMaxEvents: monitoring.NewUint(reg, "queue.max_events"),

activeEvents: monitoring.NewUint(reg, "events.active"), // Gauge
activeEvents: monitoring.NewUint(reg, "events.active"), // Gauge
percentQueueFull: monitoring.NewFloat(reg, "queue.full.pct"),
},
}
}
Expand Down Expand Up @@ -121,12 +123,23 @@ func (o *metricsObserver) clientClosed() { o.vars.clients.Dec() }
func (o *metricsObserver) newEvent() {
o.vars.events.Inc()
o.vars.activeEvents.Inc()
o.setPercentageFull()
}

// setPercentageFull is used interally to set the `queue.full` metric
func (o *metricsObserver) setPercentageFull() {
maxEvt := o.vars.queueMaxEvents.Get()
if maxEvt != 0 {
pct := float64(o.vars.activeEvents.Get()) / float64(maxEvt)
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o.vars.percentQueueFull.Set(pct)
}
}

// (client) event is filtered out (on purpose or failed)
func (o *metricsObserver) filteredEvent() {
o.vars.filtered.Inc()
o.vars.activeEvents.Dec()
o.setPercentageFull()
}

// (client) managed to push an event into the publisher pipeline
Expand All @@ -138,6 +151,7 @@ func (o *metricsObserver) publishedEvent() {
func (o *metricsObserver) failedPublishEvent() {
o.vars.failed.Inc()
o.vars.activeEvents.Dec()
o.setPercentageFull()
}

//
Expand All @@ -148,6 +162,7 @@ func (o *metricsObserver) failedPublishEvent() {
func (o *metricsObserver) queueACKed(n int) {
o.vars.queueACKed.Add(uint64(n))
o.vars.activeEvents.Sub(uint64(n))
o.setPercentageFull()
}

// (queue) maximum queue event capacity
Expand Down