github.com/uber/kraken@v0.1.4/metrics/statsd.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package metrics
    15  
    16  import (
    17  	"io"
    18  	"time"
    19  
    20  	"github.com/cactus/go-statsd-client/statsd"
    21  	"github.com/uber-go/tally"
    22  	tallystatsd "github.com/uber-go/tally/statsd"
    23  )
    24  
    25  const (
    26  	flushInterval = 100 * time.Millisecond
    27  	flushBytes    = 512
    28  	sampleRate    = 1.0
    29  )
    30  
    31  func newStatsdScope(config Config, cluster string) (tally.Scope, io.Closer, error) {
    32  	statter, err := statsd.NewBufferedClient(
    33  		config.Statsd.HostPort, config.Statsd.Prefix, flushInterval, flushBytes)
    34  	if err != nil {
    35  		return nil, nil, err
    36  	}
    37  	r := tallystatsd.NewReporter(statter, tallystatsd.Options{
    38  		SampleRate: sampleRate,
    39  	})
    40  	s, c := tally.NewRootScope(tally.ScopeOptions{
    41  		Reporter: r,
    42  	}, time.Second)
    43  	return s, c, nil
    44  }