/
metrics.go
111 lines (91 loc) · 3.32 KB
/
metrics.go
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package control
import "github.com/prometheus/client_golang/prometheus"
// controllerMetrics holds metrics related to the query controller.
type controllerMetrics struct {
requests *prometheus.CounterVec
functions *prometheus.CounterVec
all *prometheus.GaugeVec
compiling *prometheus.GaugeVec
queueing *prometheus.GaugeVec
executing *prometheus.GaugeVec
memoryUnused *prometheus.GaugeVec
allDur *prometheus.HistogramVec
compilingDur *prometheus.HistogramVec
queueingDur *prometheus.HistogramVec
executingDur *prometheus.HistogramVec
}
type requestsLabel string
const (
labelSuccess = requestsLabel("success")
labelCompileError = requestsLabel("compile_error")
labelRuntimeError = requestsLabel("runtime_error")
labelQueueError = requestsLabel("queue_error")
)
func newControllerMetrics(labels []string) *controllerMetrics {
return &controllerMetrics{
requests: prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "qc_requests_total",
Help: "Count of the query requests",
}, append(labels, "result")),
functions: prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "qc_functions_total",
Help: "Count of functions in queries",
}, append(labels, "function")),
all: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "qc_all_active",
Help: "Number of queries in all states",
}, labels),
compiling: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "qc_compiling_active",
Help: "Number of queries actively compiling",
}, append(labels, "compiler_type")),
queueing: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "qc_queueing_active",
Help: "Number of queries actively queueing",
}, labels),
executing: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "qc_executing_active",
Help: "Number of queries actively executing",
}, labels),
memoryUnused: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "qc_memory_unused_bytes",
Help: "The free memory as seen by the internal memory manager",
}, labels),
allDur: prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "qc_all_duration_seconds",
Help: "Histogram of total times spent in all query states",
Buckets: prometheus.ExponentialBuckets(1e-3, 5, 7),
}, labels),
compilingDur: prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "qc_compiling_duration_seconds",
Help: "Histogram of times spent compiling queries",
Buckets: prometheus.ExponentialBuckets(1e-3, 5, 7),
}, append(labels, "compiler_type")),
queueingDur: prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "qc_queueing_duration_seconds",
Help: "Histogram of times spent queueing queries",
Buckets: prometheus.ExponentialBuckets(1e-3, 5, 7),
}, labels),
executingDur: prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "qc_executing_duration_seconds",
Help: "Histogram of times spent executing queries",
Buckets: prometheus.ExponentialBuckets(1e-3, 5, 7),
}, labels),
}
}
// PrometheusCollectors satisfies the prom.PrometheusCollector interface.
func (cm *controllerMetrics) PrometheusCollectors() []prometheus.Collector {
return []prometheus.Collector{
cm.requests,
cm.functions,
cm.all,
cm.compiling,
cm.queueing,
cm.executing,
cm.memoryUnused,
cm.allDur,
cm.compilingDur,
cm.queueingDur,
cm.executingDur,
}
}