diff options
Diffstat (limited to 'vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go')
| -rw-r--r-- | vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go b/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go deleted file mode 100644 index a8cec2fa6..000000000 --- a/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go +++ /dev/null @@ -1,124 +0,0 @@ -// Copyright (c) 2017 Uber Technologies, Inc. -// -// 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. - -package rpcmetrics - -import ( - "sync" - - "github.com/uber/jaeger-lib/metrics" -) - -const ( - otherEndpointsPlaceholder = "other" - endpointNameMetricTag = "endpoint" -) - -// Metrics is a collection of metrics for an endpoint describing -// throughput, success, errors, and performance. -type Metrics struct { - // RequestCountSuccess is a counter of the total number of successes. - RequestCountSuccess metrics.Counter `metric:"requests" tags:"error=false"` - - // RequestCountFailures is a counter of the number of times any failure has been observed. - RequestCountFailures metrics.Counter `metric:"requests" tags:"error=true"` - - // RequestLatencySuccess is a latency histogram of successful requests. - RequestLatencySuccess metrics.Timer `metric:"request_latency" tags:"error=false"` - - // RequestLatencyFailures is a latency histogram of failed requests. - RequestLatencyFailures metrics.Timer `metric:"request_latency" tags:"error=true"` - - // HTTPStatusCode2xx is a counter of the total number of requests with HTTP status code 200-299 - HTTPStatusCode2xx metrics.Counter `metric:"http_requests" tags:"status_code=2xx"` - - // HTTPStatusCode3xx is a counter of the total number of requests with HTTP status code 300-399 - HTTPStatusCode3xx metrics.Counter `metric:"http_requests" tags:"status_code=3xx"` - - // HTTPStatusCode4xx is a counter of the total number of requests with HTTP status code 400-499 - HTTPStatusCode4xx metrics.Counter `metric:"http_requests" tags:"status_code=4xx"` - - // HTTPStatusCode5xx is a counter of the total number of requests with HTTP status code 500-599 - HTTPStatusCode5xx metrics.Counter `metric:"http_requests" tags:"status_code=5xx"` -} - -func (m *Metrics) recordHTTPStatusCode(statusCode uint16) { - if statusCode >= 200 && statusCode < 300 { - m.HTTPStatusCode2xx.Inc(1) - } else if statusCode >= 300 && statusCode < 400 { - m.HTTPStatusCode3xx.Inc(1) - } else if statusCode >= 400 && statusCode < 500 { - m.HTTPStatusCode4xx.Inc(1) - } else if statusCode >= 500 && statusCode < 600 { - m.HTTPStatusCode5xx.Inc(1) - } -} - -// MetricsByEndpoint is a registry/cache of metrics for each unique endpoint name. -// Only maxNumberOfEndpoints Metrics are stored, all other endpoint names are mapped -// to a generic endpoint name "other". -type MetricsByEndpoint struct { - metricsFactory metrics.Factory - endpoints *normalizedEndpoints - metricsByEndpoint map[string]*Metrics - mux sync.RWMutex -} - -func newMetricsByEndpoint( - metricsFactory metrics.Factory, - normalizer NameNormalizer, - maxNumberOfEndpoints int, -) *MetricsByEndpoint { - return &MetricsByEndpoint{ - metricsFactory: metricsFactory, - endpoints: newNormalizedEndpoints(maxNumberOfEndpoints, normalizer), - metricsByEndpoint: make(map[string]*Metrics, maxNumberOfEndpoints+1), // +1 for "other" - } -} - -func (m *MetricsByEndpoint) get(endpoint string) *Metrics { - safeName := m.endpoints.normalize(endpoint) - if safeName == "" { - safeName = otherEndpointsPlaceholder - } - m.mux.RLock() - met := m.metricsByEndpoint[safeName] - m.mux.RUnlock() - if met != nil { - return met - } - - return m.getWithWriteLock(safeName) -} - -// split to make easier to test -func (m *MetricsByEndpoint) getWithWriteLock(safeName string) *Metrics { - m.mux.Lock() - defer m.mux.Unlock() - - // it is possible that the name has been already registered after we released - // the read lock and before we grabbed the write lock, so check for that. - if met, ok := m.metricsByEndpoint[safeName]; ok { - return met - } - - // it would be nice to create the struct before locking, since Init() is somewhat - // expensive, however some metrics backends (e.g. expvar) may not like duplicate metrics. - met := &Metrics{} - tags := map[string]string{endpointNameMetricTag: safeName} - metrics.Init(met, m.metricsFactory, tags) - - m.metricsByEndpoint[safeName] = met - return met -} |