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9eaf824398
* add jaeger support, link hot container & req span * adds jaeger support now with FN_JAEGER_URL, there's a simple tutorial in the operating/metrics.md file now and it's pretty easy to get up and running. * links a hot request span to a hot container span. when we change this to sample at a lower ratio we'll need to finagle the hot container span to always sample or something, otherwise we'll hide that info. at least, since we're sampling at 100% for now if this is flipped on, can see freeze/unfreeze etc. if they hit. this is useful for debugging. note that zipkin's exporter does not follow the link at all, hence jaeger... and they're backed by the Cloud Empire now (CNCF) so we'll probably use it anyway. * vendor: add thrift for jaeger
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package gensupport
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import (
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"encoding/json"
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"errors"
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"fmt"
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"math"
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)
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// JSONFloat64 is a float64 that supports proper unmarshaling of special float
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// values in JSON, according to
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// https://developers.google.com/protocol-buffers/docs/proto3#json. Although
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// that is a proto-to-JSON spec, it applies to all Google APIs.
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//
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// The jsonpb package
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// (https://github.com/golang/protobuf/blob/master/jsonpb/jsonpb.go) has
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// similar functionality, but only for direct translation from proto messages
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// to JSON.
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type JSONFloat64 float64
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func (f *JSONFloat64) UnmarshalJSON(data []byte) error {
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var ff float64
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if err := json.Unmarshal(data, &ff); err == nil {
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*f = JSONFloat64(ff)
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return nil
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}
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var s string
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if err := json.Unmarshal(data, &s); err == nil {
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switch s {
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case "NaN":
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ff = math.NaN()
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case "Infinity":
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ff = math.Inf(1)
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case "-Infinity":
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ff = math.Inf(-1)
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default:
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return fmt.Errorf("google.golang.org/api/internal: bad float string %q", s)
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}
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*f = JSONFloat64(ff)
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return nil
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}
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return errors.New("google.golang.org/api/internal: data not float or string")
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}
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