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metrics.go
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/
metrics.go
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package tidb
import "github.com/go-kratos/kratos/pkg/stat/metric"
const namespace = "tidb_client"
var (
_metricReqDur = metric.NewHistogramVec(&metric.HistogramVecOpts{
Namespace: namespace,
Subsystem: "requests",
Name: "duration_ms",
Help: "tidb client requests duration(ms).",
Labels: []string{"name", "addr", "command"},
Buckets: []float64{5, 10, 25, 50, 100, 250, 500, 1000, 2500},
})
_metricReqErr = metric.NewCounterVec(&metric.CounterVecOpts{
Namespace: namespace,
Subsystem: "requests",
Name: "error_total",
Help: "tidb client requests error count.",
Labels: []string{"name", "addr", "command", "error"},
})
_metricConnTotal = metric.NewCounterVec(&metric.CounterVecOpts{
Namespace: namespace,
Subsystem: "connections",
Name: "total",
Help: "tidb client connections total count.",
Labels: []string{"name", "addr", "state"},
})
_metricConnCurrent = metric.NewGaugeVec(&metric.GaugeVecOpts{
Namespace: namespace,
Subsystem: "connections",
Name: "current",
Help: "tidb client connections current.",
Labels: []string{"name", "addr", "state"},
})
)