mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
57 lines
2.2 KiB
Go
57 lines
2.2 KiB
Go
package datadogutils
|
|
|
|
import (
|
|
"flag"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
|
|
)
|
|
|
|
var (
|
|
// MaxInsertRequestSize is the maximum request size is defined at https://docs.datadoghq.com/api/latest/metrics/#submit-metrics
|
|
MaxInsertRequestSize = flagutil.NewBytes("datadog.maxInsertRequestSize", 64*1024*1024, "The maximum size in bytes of a single DataDog POST request to /datadog/api/v2/series")
|
|
|
|
// SanitizeMetricName controls sanitizing metric names ingested via DataDog protocols.
|
|
//
|
|
// If all metrics in Datadog have the same naming schema as custom metrics, then the following rules apply:
|
|
// https://docs.datadoghq.com/metrics/custom_metrics/#naming-custom-metrics
|
|
// But there's some hidden behaviour. In addition to what it states in the docs, the following is also done:
|
|
// - Consecutive underscores are replaced with just one underscore
|
|
// - Underscore immediately before or after a dot are removed
|
|
SanitizeMetricName = flag.Bool("datadog.sanitizeMetricName", true, "Sanitize metric names for the ingested DataDog data to comply with DataDog behaviour described at "+
|
|
"https://docs.datadoghq.com/metrics/custom_metrics/#naming-custom-metrics")
|
|
)
|
|
|
|
// SplitTag splits DataDog tag into tag name and value.
|
|
//
|
|
// See https://docs.datadoghq.com/getting_started/tagging/#define-tags
|
|
func SplitTag(tag string) (string, string) {
|
|
n := strings.IndexByte(tag, ':')
|
|
if n < 0 {
|
|
// No tag value.
|
|
return tag, "no_label_value"
|
|
}
|
|
return tag[:n], tag[n+1:]
|
|
}
|
|
|
|
// SanitizeName performs DataDog-compatible sanitizing for metric names
|
|
//
|
|
// See https://docs.datadoghq.com/metrics/custom_metrics/#naming-custom-metrics
|
|
func SanitizeName(name string) string {
|
|
return namesSanitizer.Transform(name)
|
|
}
|
|
|
|
var namesSanitizer = bytesutil.NewFastStringTransformer(func(s string) string {
|
|
s = unsupportedDatadogChars.ReplaceAllString(s, "_")
|
|
s = multiUnderscores.ReplaceAllString(s, "_")
|
|
s = underscoresWithDots.ReplaceAllString(s, ".")
|
|
return s
|
|
})
|
|
|
|
var (
|
|
unsupportedDatadogChars = regexp.MustCompile(`[^0-9a-zA-Z_\.]+`)
|
|
multiUnderscores = regexp.MustCompile(`_+`)
|
|
underscoresWithDots = regexp.MustCompile(`_?\._?`)
|
|
)
|