diff options
author | Christopher Speller <crspeller@gmail.com> | 2018-04-16 05:37:14 -0700 |
---|---|---|
committer | Joram Wilander <jwawilander@gmail.com> | 2018-04-16 08:37:14 -0400 |
commit | 6e2cb00008cbf09e556b00f87603797fcaa47e09 (patch) | |
tree | 3c0eb55ff4226a3f024aad373140d1fb860a6404 /vendor/github.com/prometheus/client_golang/examples/random/main.go | |
parent | bf24f51c4e1cc6286885460672f7f449e8c6f5ef (diff) | |
download | chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.gz chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.bz2 chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.zip |
Depenancy upgrades and movign to dep. (#8630)
Diffstat (limited to 'vendor/github.com/prometheus/client_golang/examples/random/main.go')
-rw-r--r-- | vendor/github.com/prometheus/client_golang/examples/random/main.go | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/vendor/github.com/prometheus/client_golang/examples/random/main.go b/vendor/github.com/prometheus/client_golang/examples/random/main.go deleted file mode 100644 index eef50d200..000000000 --- a/vendor/github.com/prometheus/client_golang/examples/random/main.go +++ /dev/null @@ -1,106 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// A simple example exposing fictional RPC latencies with different types of -// random distributions (uniform, normal, and exponential) as Prometheus -// metrics. -package main - -import ( - "flag" - "log" - "math" - "math/rand" - "net/http" - "time" - - "github.com/prometheus/client_golang/prometheus" - "github.com/prometheus/client_golang/prometheus/promhttp" -) - -var ( - addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.") - uniformDomain = flag.Float64("uniform.domain", 0.0002, "The domain for the uniform distribution.") - normDomain = flag.Float64("normal.domain", 0.0002, "The domain for the normal distribution.") - normMean = flag.Float64("normal.mean", 0.00001, "The mean for the normal distribution.") - oscillationPeriod = flag.Duration("oscillation-period", 10*time.Minute, "The duration of the rate oscillation period.") -) - -var ( - // Create a summary to track fictional interservice RPC latencies for three - // distinct services with different latency distributions. These services are - // differentiated via a "service" label. - rpcDurations = prometheus.NewSummaryVec( - prometheus.SummaryOpts{ - Name: "rpc_durations_seconds", - Help: "RPC latency distributions.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, - }, - []string{"service"}, - ) - // The same as above, but now as a histogram, and only for the normal - // distribution. The buckets are targeted to the parameters of the - // normal distribution, with 20 buckets centered on the mean, each - // half-sigma wide. - rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{ - Name: "rpc_durations_histogram_seconds", - Help: "RPC latency distributions.", - Buckets: prometheus.LinearBuckets(*normMean-5**normDomain, .5**normDomain, 20), - }) -) - -func init() { - // Register the summary and the histogram with Prometheus's default registry. - prometheus.MustRegister(rpcDurations) - prometheus.MustRegister(rpcDurationsHistogram) -} - -func main() { - flag.Parse() - - start := time.Now() - - oscillationFactor := func() float64 { - return 2 + math.Sin(math.Sin(2*math.Pi*float64(time.Since(start))/float64(*oscillationPeriod))) - } - - // Periodically record some sample latencies for the three services. - go func() { - for { - v := rand.Float64() * *uniformDomain - rpcDurations.WithLabelValues("uniform").Observe(v) - time.Sleep(time.Duration(100*oscillationFactor()) * time.Millisecond) - } - }() - - go func() { - for { - v := (rand.NormFloat64() * *normDomain) + *normMean - rpcDurations.WithLabelValues("normal").Observe(v) - rpcDurationsHistogram.Observe(v) - time.Sleep(time.Duration(75*oscillationFactor()) * time.Millisecond) - } - }() - - go func() { - for { - v := rand.ExpFloat64() / 1e6 - rpcDurations.WithLabelValues("exponential").Observe(v) - time.Sleep(time.Duration(50*oscillationFactor()) * time.Millisecond) - } - }() - - // Expose the registered metrics via HTTP. - http.Handle("/metrics", promhttp.Handler()) - log.Fatal(http.ListenAndServe(*addr, nil)) -} |