78 lines
3.4 KiB
Go
78 lines
3.4 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package jaeger
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const (
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// JaegerClientVersion is the version of the client library reported as Span tag.
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JaegerClientVersion = "Go-2.9.0"
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// JaegerClientVersionTagKey is the name of the tag used to report client version.
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JaegerClientVersionTagKey = "jaeger.version"
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// JaegerDebugHeader is the name of HTTP header or a TextMap carrier key which,
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// if found in the carrier, forces the trace to be sampled as "debug" trace.
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// The value of the header is recorded as the tag on the root span, so that the
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// trace can be found in the UI using this value as a correlation ID.
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JaegerDebugHeader = "jaeger-debug-id"
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// JaegerBaggageHeader is the name of the HTTP header that is used to submit baggage.
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// It differs from TraceBaggageHeaderPrefix in that it can be used only in cases where
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// a root span does not exist.
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JaegerBaggageHeader = "jaeger-baggage"
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// TracerHostnameTagKey used to report host name of the process.
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TracerHostnameTagKey = "hostname"
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// TracerIPTagKey used to report ip of the process.
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TracerIPTagKey = "ip"
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// SamplerTypeTagKey reports which sampler was used on the root span.
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SamplerTypeTagKey = "sampler.type"
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// SamplerParamTagKey reports the parameter of the sampler, like sampling probability.
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SamplerParamTagKey = "sampler.param"
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// TracerStateHeaderName is the http header name used to propagate tracing context.
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// This must be in lower-case to avoid mismatches when decoding incoming headers.
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TracerStateHeaderName = "uber-trace-id"
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// TraceBaggageHeaderPrefix is the prefix for http headers used to propagate baggage.
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// This must be in lower-case to avoid mismatches when decoding incoming headers.
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TraceBaggageHeaderPrefix = "uberctx-"
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// SamplerTypeConst is the type of sampler that always makes the same decision.
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SamplerTypeConst = "const"
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// SamplerTypeRemote is the type of sampler that polls Jaeger agent for sampling strategy.
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SamplerTypeRemote = "remote"
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// SamplerTypeProbabilistic is the type of sampler that samples traces
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// with a certain fixed probability.
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SamplerTypeProbabilistic = "probabilistic"
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// SamplerTypeRateLimiting is the type of sampler that samples
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// only up to a fixed number of traces per second.
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SamplerTypeRateLimiting = "ratelimiting"
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// SamplerTypeLowerBound is the type of sampler that samples
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// only up to a fixed number of traces per second.
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SamplerTypeLowerBound = "lowerbound"
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)
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