mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-06-13 10:33:35 +00:00
rebase: bump github.com/hashicorp/vault/api from 1.1.1 to 1.2.0
Bumps [github.com/hashicorp/vault/api](https://github.com/hashicorp/vault) from 1.1.1 to 1.2.0. - [Release notes](https://github.com/hashicorp/vault/releases) - [Changelog](https://github.com/hashicorp/vault/blob/main/CHANGELOG.md) - [Commits](https://github.com/hashicorp/vault/compare/v1.1.1...v1.2.0) --- updated-dependencies: - dependency-name: github.com/hashicorp/vault/api dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
This commit is contained in:
dependabot[bot]
committed by
mergify[bot]
mergify[bot]
parent
9bd9f5e91d
commit
5280b67327
24
vendor/github.com/armon/go-metrics/.gitignore
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vendored
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24
vendor/github.com/armon/go-metrics/.gitignore
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@ -0,0 +1,24 @@
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
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*.o
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*.a
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*.so
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|
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# Folders
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_obj
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_test
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|
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# Architecture specific extensions/prefixes
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*.[568vq]
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[568vq].out
|
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|
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*.cgo1.go
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*.cgo2.c
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_cgo_defun.c
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_cgo_gotypes.go
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_cgo_export.*
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_testmain.go
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*.exe
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/metrics.out
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13
vendor/github.com/armon/go-metrics/.travis.yml
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vendored
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13
vendor/github.com/armon/go-metrics/.travis.yml
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@ -0,0 +1,13 @@
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language: go
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go:
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- "1.x"
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env:
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- GO111MODULE=on
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install:
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- go get ./...
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script:
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- go test ./...
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20
vendor/github.com/armon/go-metrics/LICENSE
generated
vendored
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20
vendor/github.com/armon/go-metrics/LICENSE
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vendored
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@ -0,0 +1,20 @@
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||||
The MIT License (MIT)
|
||||
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||||
Copyright (c) 2013 Armon Dadgar
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Permission is hereby granted, free of charge, to any person obtaining a copy of
|
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this software and associated documentation files (the "Software"), to deal in
|
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the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
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||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
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91
vendor/github.com/armon/go-metrics/README.md
generated
vendored
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91
vendor/github.com/armon/go-metrics/README.md
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vendored
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@ -0,0 +1,91 @@
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go-metrics
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==========
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This library provides a `metrics` package which can be used to instrument code,
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expose application metrics, and profile runtime performance in a flexible manner.
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Current API: [](https://godoc.org/github.com/armon/go-metrics)
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Sinks
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-----
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The `metrics` package makes use of a `MetricSink` interface to support delivery
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to any type of backend. Currently the following sinks are provided:
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* StatsiteSink : Sinks to a [statsite](https://github.com/armon/statsite/) instance (TCP)
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* StatsdSink: Sinks to a [StatsD](https://github.com/etsy/statsd/) / statsite instance (UDP)
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* PrometheusSink: Sinks to a [Prometheus](http://prometheus.io/) metrics endpoint (exposed via HTTP for scrapes)
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* InmemSink : Provides in-memory aggregation, can be used to export stats
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* FanoutSink : Sinks to multiple sinks. Enables writing to multiple statsite instances for example.
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* BlackholeSink : Sinks to nowhere
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In addition to the sinks, the `InmemSignal` can be used to catch a signal,
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and dump a formatted output of recent metrics. For example, when a process gets
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a SIGUSR1, it can dump to stderr recent performance metrics for debugging.
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Labels
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||||
------
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Most metrics do have an equivalent ending with `WithLabels`, such methods
|
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allow to push metrics with labels and use some features of underlying Sinks
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(ex: translated into Prometheus labels).
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|
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Since some of these labels may increase greatly cardinality of metrics, the
|
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library allow to filter labels using a blacklist/whitelist filtering system
|
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which is global to all metrics.
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||||
|
||||
* If `Config.AllowedLabels` is not nil, then only labels specified in this value will be sent to underlying Sink, otherwise, all labels are sent by default.
|
||||
* If `Config.BlockedLabels` is not nil, any label specified in this value will not be sent to underlying Sinks.
|
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|
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By default, both `Config.AllowedLabels` and `Config.BlockedLabels` are nil, meaning that
|
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no tags are filetered at all, but it allow to a user to globally block some tags with high
|
||||
cardinality at application level.
|
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|
||||
Examples
|
||||
--------
|
||||
|
||||
Here is an example of using the package:
|
||||
|
||||
```go
|
||||
func SlowMethod() {
|
||||
// Profiling the runtime of a method
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||||
defer metrics.MeasureSince([]string{"SlowMethod"}, time.Now())
|
||||
}
|
||||
|
||||
// Configure a statsite sink as the global metrics sink
|
||||
sink, _ := metrics.NewStatsiteSink("statsite:8125")
|
||||
metrics.NewGlobal(metrics.DefaultConfig("service-name"), sink)
|
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|
||||
// Emit a Key/Value pair
|
||||
metrics.EmitKey([]string{"questions", "meaning of life"}, 42)
|
||||
```
|
||||
|
||||
Here is an example of setting up a signal handler:
|
||||
|
||||
```go
|
||||
// Setup the inmem sink and signal handler
|
||||
inm := metrics.NewInmemSink(10*time.Second, time.Minute)
|
||||
sig := metrics.DefaultInmemSignal(inm)
|
||||
metrics.NewGlobal(metrics.DefaultConfig("service-name"), inm)
|
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|
||||
// Run some code
|
||||
inm.SetGauge([]string{"foo"}, 42)
|
||||
inm.EmitKey([]string{"bar"}, 30)
|
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|
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inm.IncrCounter([]string{"baz"}, 42)
|
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inm.IncrCounter([]string{"baz"}, 1)
|
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inm.IncrCounter([]string{"baz"}, 80)
|
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|
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inm.AddSample([]string{"method", "wow"}, 42)
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inm.AddSample([]string{"method", "wow"}, 100)
|
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inm.AddSample([]string{"method", "wow"}, 22)
|
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|
||||
....
|
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```
|
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|
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When a signal comes in, output like the following will be dumped to stderr:
|
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|
||||
[2014-01-28 14:57:33.04 -0800 PST][G] 'foo': 42.000
|
||||
[2014-01-28 14:57:33.04 -0800 PST][P] 'bar': 30.000
|
||||
[2014-01-28 14:57:33.04 -0800 PST][C] 'baz': Count: 3 Min: 1.000 Mean: 41.000 Max: 80.000 Stddev: 39.509
|
||||
[2014-01-28 14:57:33.04 -0800 PST][S] 'method.wow': Count: 3 Min: 22.000 Mean: 54.667 Max: 100.000 Stddev: 40.513
|
||||
12
vendor/github.com/armon/go-metrics/const_unix.go
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vendored
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12
vendor/github.com/armon/go-metrics/const_unix.go
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vendored
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// +build !windows
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||||
|
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package metrics
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
const (
|
||||
// DefaultSignal is used with DefaultInmemSignal
|
||||
DefaultSignal = syscall.SIGUSR1
|
||||
)
|
||||
13
vendor/github.com/armon/go-metrics/const_windows.go
generated
vendored
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13
vendor/github.com/armon/go-metrics/const_windows.go
generated
vendored
Normal file
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|
||||
// +build windows
|
||||
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
const (
|
||||
// DefaultSignal is used with DefaultInmemSignal
|
||||
// Windows has no SIGUSR1, use SIGBREAK
|
||||
DefaultSignal = syscall.Signal(21)
|
||||
)
|
||||
17
vendor/github.com/armon/go-metrics/go.mod
generated
vendored
Normal file
17
vendor/github.com/armon/go-metrics/go.mod
generated
vendored
Normal file
@ -0,0 +1,17 @@
|
||||
module github.com/armon/go-metrics
|
||||
|
||||
go 1.12
|
||||
|
||||
require (
|
||||
github.com/DataDog/datadog-go v3.2.0+incompatible
|
||||
github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible
|
||||
github.com/circonus-labs/circonusllhist v0.1.3 // indirect
|
||||
github.com/golang/protobuf v1.3.2
|
||||
github.com/hashicorp/go-immutable-radix v1.0.0
|
||||
github.com/hashicorp/go-retryablehttp v0.5.3 // indirect
|
||||
github.com/pascaldekloe/goe v0.1.0
|
||||
github.com/prometheus/client_golang v1.4.0
|
||||
github.com/prometheus/client_model v0.2.0
|
||||
github.com/prometheus/common v0.9.1
|
||||
github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926 // indirect
|
||||
)
|
||||
125
vendor/github.com/armon/go-metrics/go.sum
generated
vendored
Normal file
125
vendor/github.com/armon/go-metrics/go.sum
generated
vendored
Normal file
@ -0,0 +1,125 @@
|
||||
github.com/DataDog/datadog-go v3.2.0+incompatible h1:qSG2N4FghB1He/r2mFrWKCaL7dXCilEuNEeAn20fdD4=
|
||||
github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
|
||||
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
|
||||
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
|
||||
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
|
||||
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
|
||||
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
|
||||
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
|
||||
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
|
||||
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
|
||||
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
|
||||
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
|
||||
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
|
||||
github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible h1:C29Ae4G5GtYyYMm1aztcyj/J5ckgJm2zwdDajFbx1NY=
|
||||
github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
|
||||
github.com/circonus-labs/circonusllhist v0.1.3 h1:TJH+oke8D16535+jHExHj4nQvzlZrj7ug5D7I/orNUA=
|
||||
github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
|
||||
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
|
||||
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
|
||||
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
|
||||
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
|
||||
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
|
||||
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
|
||||
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
|
||||
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
|
||||
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||
github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
|
||||
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
|
||||
github.com/hashicorp/go-cleanhttp v0.5.0 h1:wvCrVc9TjDls6+YGAF2hAifE1E5U1+b4tH6KdvN3Gig=
|
||||
github.com/hashicorp/go-cleanhttp v0.5.0/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
|
||||
github.com/hashicorp/go-immutable-radix v1.0.0 h1:AKDB1HM5PWEA7i4nhcpwOrO2byshxBjXVn/J/3+z5/0=
|
||||
github.com/hashicorp/go-immutable-radix v1.0.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
|
||||
github.com/hashicorp/go-retryablehttp v0.5.3 h1:QlWt0KvWT0lq8MFppF9tsJGF+ynG7ztc2KIPhzRGk7s=
|
||||
github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
|
||||
github.com/hashicorp/go-uuid v1.0.0 h1:RS8zrF7PhGwyNPOtxSClXXj9HA8feRnJzgnI1RJCSnM=
|
||||
github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
|
||||
github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
|
||||
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
|
||||
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
|
||||
github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
|
||||
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
|
||||
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
|
||||
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
|
||||
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
|
||||
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
||||
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
|
||||
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
||||
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
|
||||
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
|
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
|
||||
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
|
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
|
||||
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
|
||||
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
|
||||
github.com/pascaldekloe/goe v0.1.0 h1:cBOtyMzM9HTpWjXfbbunk26uA6nG3a8n06Wieeh0MwY=
|
||||
github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
|
||||
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
|
||||
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
|
||||
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
|
||||
github.com/prometheus/client_golang v1.4.0 h1:YVIb/fVcOTMSqtqZWSKnHpSLBxu8DKgxq8z6RuBZwqI=
|
||||
github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
|
||||
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 h1:idejC8f05m9MGOsuEi1ATq9shN03HrxNkD/luQvxCv8=
|
||||
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
|
||||
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
|
||||
github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
|
||||
github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
|
||||
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
|
||||
github.com/prometheus/common v0.9.1 h1:KOMtN28tlbam3/7ZKEYKHhKoJZYYj3gMH4uc62x7X7U=
|
||||
github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
|
||||
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
|
||||
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
|
||||
github.com/prometheus/procfs v0.0.8 h1:+fpWZdT24pJBiqJdAwYBjPSk+5YmQzYNPYzQsdzLkt8=
|
||||
github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
|
||||
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
|
||||
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
|
||||
github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
|
||||
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
|
||||
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
|
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
|
||||
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
||||
github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926 h1:G3dpKMzFDjgEh2q1Z7zUUtKa8ViPtH+ocF0bE0g00O8=
|
||||
github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
|
||||
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f h1:Bl/8QSvNqXvPGPGXa2z5xUTmV7VDcZyvRZ+QQXkXTZQ=
|
||||
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 h1:ywK/j/KkyTHcdyYSZNXGjMwgmDSfjglYZ3vStQ/gSCU=
|
||||
golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
|
||||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
|
||||
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
|
||||
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
335
vendor/github.com/armon/go-metrics/inmem.go
generated
vendored
Normal file
335
vendor/github.com/armon/go-metrics/inmem.go
generated
vendored
Normal file
@ -0,0 +1,335 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"math"
|
||||
"net/url"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
var spaceReplacer = strings.NewReplacer(" ", "_")
|
||||
|
||||
// InmemSink provides a MetricSink that does in-memory aggregation
|
||||
// without sending metrics over a network. It can be embedded within
|
||||
// an application to provide profiling information.
|
||||
type InmemSink struct {
|
||||
// How long is each aggregation interval
|
||||
interval time.Duration
|
||||
|
||||
// Retain controls how many metrics interval we keep
|
||||
retain time.Duration
|
||||
|
||||
// maxIntervals is the maximum length of intervals.
|
||||
// It is retain / interval.
|
||||
maxIntervals int
|
||||
|
||||
// intervals is a slice of the retained intervals
|
||||
intervals []*IntervalMetrics
|
||||
intervalLock sync.RWMutex
|
||||
|
||||
rateDenom float64
|
||||
}
|
||||
|
||||
// IntervalMetrics stores the aggregated metrics
|
||||
// for a specific interval
|
||||
type IntervalMetrics struct {
|
||||
sync.RWMutex
|
||||
|
||||
// The start time of the interval
|
||||
Interval time.Time
|
||||
|
||||
// Gauges maps the key to the last set value
|
||||
Gauges map[string]GaugeValue
|
||||
|
||||
// Points maps the string to the list of emitted values
|
||||
// from EmitKey
|
||||
Points map[string][]float32
|
||||
|
||||
// Counters maps the string key to a sum of the counter
|
||||
// values
|
||||
Counters map[string]SampledValue
|
||||
|
||||
// Samples maps the key to an AggregateSample,
|
||||
// which has the rolled up view of a sample
|
||||
Samples map[string]SampledValue
|
||||
}
|
||||
|
||||
// NewIntervalMetrics creates a new IntervalMetrics for a given interval
|
||||
func NewIntervalMetrics(intv time.Time) *IntervalMetrics {
|
||||
return &IntervalMetrics{
|
||||
Interval: intv,
|
||||
Gauges: make(map[string]GaugeValue),
|
||||
Points: make(map[string][]float32),
|
||||
Counters: make(map[string]SampledValue),
|
||||
Samples: make(map[string]SampledValue),
|
||||
}
|
||||
}
|
||||
|
||||
// AggregateSample is used to hold aggregate metrics
|
||||
// about a sample
|
||||
type AggregateSample struct {
|
||||
Count int // The count of emitted pairs
|
||||
Rate float64 // The values rate per time unit (usually 1 second)
|
||||
Sum float64 // The sum of values
|
||||
SumSq float64 `json:"-"` // The sum of squared values
|
||||
Min float64 // Minimum value
|
||||
Max float64 // Maximum value
|
||||
LastUpdated time.Time `json:"-"` // When value was last updated
|
||||
}
|
||||
|
||||
// Computes a Stddev of the values
|
||||
func (a *AggregateSample) Stddev() float64 {
|
||||
num := (float64(a.Count) * a.SumSq) - math.Pow(a.Sum, 2)
|
||||
div := float64(a.Count * (a.Count - 1))
|
||||
if div == 0 {
|
||||
return 0
|
||||
}
|
||||
return math.Sqrt(num / div)
|
||||
}
|
||||
|
||||
// Computes a mean of the values
|
||||
func (a *AggregateSample) Mean() float64 {
|
||||
if a.Count == 0 {
|
||||
return 0
|
||||
}
|
||||
return a.Sum / float64(a.Count)
|
||||
}
|
||||
|
||||
// Ingest is used to update a sample
|
||||
func (a *AggregateSample) Ingest(v float64, rateDenom float64) {
|
||||
a.Count++
|
||||
a.Sum += v
|
||||
a.SumSq += (v * v)
|
||||
if v < a.Min || a.Count == 1 {
|
||||
a.Min = v
|
||||
}
|
||||
if v > a.Max || a.Count == 1 {
|
||||
a.Max = v
|
||||
}
|
||||
a.Rate = float64(a.Sum) / rateDenom
|
||||
a.LastUpdated = time.Now()
|
||||
}
|
||||
|
||||
func (a *AggregateSample) String() string {
|
||||
if a.Count == 0 {
|
||||
return "Count: 0"
|
||||
} else if a.Stddev() == 0 {
|
||||
return fmt.Sprintf("Count: %d Sum: %0.3f LastUpdated: %s", a.Count, a.Sum, a.LastUpdated)
|
||||
} else {
|
||||
return fmt.Sprintf("Count: %d Min: %0.3f Mean: %0.3f Max: %0.3f Stddev: %0.3f Sum: %0.3f LastUpdated: %s",
|
||||
a.Count, a.Min, a.Mean(), a.Max, a.Stddev(), a.Sum, a.LastUpdated)
|
||||
}
|
||||
}
|
||||
|
||||
// NewInmemSinkFromURL creates an InmemSink from a URL. It is used
|
||||
// (and tested) from NewMetricSinkFromURL.
|
||||
func NewInmemSinkFromURL(u *url.URL) (MetricSink, error) {
|
||||
params := u.Query()
|
||||
|
||||
interval, err := time.ParseDuration(params.Get("interval"))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Bad 'interval' param: %s", err)
|
||||
}
|
||||
|
||||
retain, err := time.ParseDuration(params.Get("retain"))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Bad 'retain' param: %s", err)
|
||||
}
|
||||
|
||||
return NewInmemSink(interval, retain), nil
|
||||
}
|
||||
|
||||
// NewInmemSink is used to construct a new in-memory sink.
|
||||
// Uses an aggregation interval and maximum retention period.
|
||||
func NewInmemSink(interval, retain time.Duration) *InmemSink {
|
||||
rateTimeUnit := time.Second
|
||||
i := &InmemSink{
|
||||
interval: interval,
|
||||
retain: retain,
|
||||
maxIntervals: int(retain / interval),
|
||||
rateDenom: float64(interval.Nanoseconds()) / float64(rateTimeUnit.Nanoseconds()),
|
||||
}
|
||||
i.intervals = make([]*IntervalMetrics, 0, i.maxIntervals)
|
||||
return i
|
||||
}
|
||||
|
||||
func (i *InmemSink) SetGauge(key []string, val float32) {
|
||||
i.SetGaugeWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (i *InmemSink) SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
k, name := i.flattenKeyLabels(key, labels)
|
||||
intv := i.getInterval()
|
||||
|
||||
intv.Lock()
|
||||
defer intv.Unlock()
|
||||
intv.Gauges[k] = GaugeValue{Name: name, Value: val, Labels: labels}
|
||||
}
|
||||
|
||||
func (i *InmemSink) EmitKey(key []string, val float32) {
|
||||
k := i.flattenKey(key)
|
||||
intv := i.getInterval()
|
||||
|
||||
intv.Lock()
|
||||
defer intv.Unlock()
|
||||
vals := intv.Points[k]
|
||||
intv.Points[k] = append(vals, val)
|
||||
}
|
||||
|
||||
func (i *InmemSink) IncrCounter(key []string, val float32) {
|
||||
i.IncrCounterWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (i *InmemSink) IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
k, name := i.flattenKeyLabels(key, labels)
|
||||
intv := i.getInterval()
|
||||
|
||||
intv.Lock()
|
||||
defer intv.Unlock()
|
||||
|
||||
agg, ok := intv.Counters[k]
|
||||
if !ok {
|
||||
agg = SampledValue{
|
||||
Name: name,
|
||||
AggregateSample: &AggregateSample{},
|
||||
Labels: labels,
|
||||
}
|
||||
intv.Counters[k] = agg
|
||||
}
|
||||
agg.Ingest(float64(val), i.rateDenom)
|
||||
}
|
||||
|
||||
func (i *InmemSink) AddSample(key []string, val float32) {
|
||||
i.AddSampleWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (i *InmemSink) AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
k, name := i.flattenKeyLabels(key, labels)
|
||||
intv := i.getInterval()
|
||||
|
||||
intv.Lock()
|
||||
defer intv.Unlock()
|
||||
|
||||
agg, ok := intv.Samples[k]
|
||||
if !ok {
|
||||
agg = SampledValue{
|
||||
Name: name,
|
||||
AggregateSample: &AggregateSample{},
|
||||
Labels: labels,
|
||||
}
|
||||
intv.Samples[k] = agg
|
||||
}
|
||||
agg.Ingest(float64(val), i.rateDenom)
|
||||
}
|
||||
|
||||
// Data is used to retrieve all the aggregated metrics
|
||||
// Intervals may be in use, and a read lock should be acquired
|
||||
func (i *InmemSink) Data() []*IntervalMetrics {
|
||||
// Get the current interval, forces creation
|
||||
i.getInterval()
|
||||
|
||||
i.intervalLock.RLock()
|
||||
defer i.intervalLock.RUnlock()
|
||||
|
||||
n := len(i.intervals)
|
||||
intervals := make([]*IntervalMetrics, n)
|
||||
|
||||
copy(intervals[:n-1], i.intervals[:n-1])
|
||||
current := i.intervals[n-1]
|
||||
|
||||
// make its own copy for current interval
|
||||
intervals[n-1] = &IntervalMetrics{}
|
||||
copyCurrent := intervals[n-1]
|
||||
current.RLock()
|
||||
*copyCurrent = *current
|
||||
|
||||
copyCurrent.Gauges = make(map[string]GaugeValue, len(current.Gauges))
|
||||
for k, v := range current.Gauges {
|
||||
copyCurrent.Gauges[k] = v
|
||||
}
|
||||
// saved values will be not change, just copy its link
|
||||
copyCurrent.Points = make(map[string][]float32, len(current.Points))
|
||||
for k, v := range current.Points {
|
||||
copyCurrent.Points[k] = v
|
||||
}
|
||||
copyCurrent.Counters = make(map[string]SampledValue, len(current.Counters))
|
||||
for k, v := range current.Counters {
|
||||
copyCurrent.Counters[k] = v.deepCopy()
|
||||
}
|
||||
copyCurrent.Samples = make(map[string]SampledValue, len(current.Samples))
|
||||
for k, v := range current.Samples {
|
||||
copyCurrent.Samples[k] = v.deepCopy()
|
||||
}
|
||||
current.RUnlock()
|
||||
|
||||
return intervals
|
||||
}
|
||||
|
||||
func (i *InmemSink) getExistingInterval(intv time.Time) *IntervalMetrics {
|
||||
i.intervalLock.RLock()
|
||||
defer i.intervalLock.RUnlock()
|
||||
|
||||
n := len(i.intervals)
|
||||
if n > 0 && i.intervals[n-1].Interval == intv {
|
||||
return i.intervals[n-1]
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (i *InmemSink) createInterval(intv time.Time) *IntervalMetrics {
|
||||
i.intervalLock.Lock()
|
||||
defer i.intervalLock.Unlock()
|
||||
|
||||
// Check for an existing interval
|
||||
n := len(i.intervals)
|
||||
if n > 0 && i.intervals[n-1].Interval == intv {
|
||||
return i.intervals[n-1]
|
||||
}
|
||||
|
||||
// Add the current interval
|
||||
current := NewIntervalMetrics(intv)
|
||||
i.intervals = append(i.intervals, current)
|
||||
n++
|
||||
|
||||
// Truncate the intervals if they are too long
|
||||
if n >= i.maxIntervals {
|
||||
copy(i.intervals[0:], i.intervals[n-i.maxIntervals:])
|
||||
i.intervals = i.intervals[:i.maxIntervals]
|
||||
}
|
||||
return current
|
||||
}
|
||||
|
||||
// getInterval returns the current interval to write to
|
||||
func (i *InmemSink) getInterval() *IntervalMetrics {
|
||||
intv := time.Now().Truncate(i.interval)
|
||||
if m := i.getExistingInterval(intv); m != nil {
|
||||
return m
|
||||
}
|
||||
return i.createInterval(intv)
|
||||
}
|
||||
|
||||
// Flattens the key for formatting, removes spaces
|
||||
func (i *InmemSink) flattenKey(parts []string) string {
|
||||
buf := &bytes.Buffer{}
|
||||
|
||||
joined := strings.Join(parts, ".")
|
||||
|
||||
spaceReplacer.WriteString(buf, joined)
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// Flattens the key for formatting along with its labels, removes spaces
|
||||
func (i *InmemSink) flattenKeyLabels(parts []string, labels []Label) (string, string) {
|
||||
key := i.flattenKey(parts)
|
||||
buf := bytes.NewBufferString(key)
|
||||
|
||||
for _, label := range labels {
|
||||
spaceReplacer.WriteString(buf, fmt.Sprintf(";%s=%s", label.Name, label.Value))
|
||||
}
|
||||
|
||||
return buf.String(), key
|
||||
}
|
||||
131
vendor/github.com/armon/go-metrics/inmem_endpoint.go
generated
vendored
Normal file
131
vendor/github.com/armon/go-metrics/inmem_endpoint.go
generated
vendored
Normal file
@ -0,0 +1,131 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/http"
|
||||
"sort"
|
||||
"time"
|
||||
)
|
||||
|
||||
// MetricsSummary holds a roll-up of metrics info for a given interval
|
||||
type MetricsSummary struct {
|
||||
Timestamp string
|
||||
Gauges []GaugeValue
|
||||
Points []PointValue
|
||||
Counters []SampledValue
|
||||
Samples []SampledValue
|
||||
}
|
||||
|
||||
type GaugeValue struct {
|
||||
Name string
|
||||
Hash string `json:"-"`
|
||||
Value float32
|
||||
|
||||
Labels []Label `json:"-"`
|
||||
DisplayLabels map[string]string `json:"Labels"`
|
||||
}
|
||||
|
||||
type PointValue struct {
|
||||
Name string
|
||||
Points []float32
|
||||
}
|
||||
|
||||
type SampledValue struct {
|
||||
Name string
|
||||
Hash string `json:"-"`
|
||||
*AggregateSample
|
||||
Mean float64
|
||||
Stddev float64
|
||||
|
||||
Labels []Label `json:"-"`
|
||||
DisplayLabels map[string]string `json:"Labels"`
|
||||
}
|
||||
|
||||
// deepCopy allocates a new instance of AggregateSample
|
||||
func (source *SampledValue) deepCopy() SampledValue {
|
||||
dest := *source
|
||||
if source.AggregateSample != nil {
|
||||
dest.AggregateSample = &AggregateSample{}
|
||||
*dest.AggregateSample = *source.AggregateSample
|
||||
}
|
||||
return dest
|
||||
}
|
||||
|
||||
// DisplayMetrics returns a summary of the metrics from the most recent finished interval.
|
||||
func (i *InmemSink) DisplayMetrics(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
|
||||
data := i.Data()
|
||||
|
||||
var interval *IntervalMetrics
|
||||
n := len(data)
|
||||
switch {
|
||||
case n == 0:
|
||||
return nil, fmt.Errorf("no metric intervals have been initialized yet")
|
||||
case n == 1:
|
||||
// Show the current interval if it's all we have
|
||||
interval = data[0]
|
||||
default:
|
||||
// Show the most recent finished interval if we have one
|
||||
interval = data[n-2]
|
||||
}
|
||||
|
||||
interval.RLock()
|
||||
defer interval.RUnlock()
|
||||
|
||||
summary := MetricsSummary{
|
||||
Timestamp: interval.Interval.Round(time.Second).UTC().String(),
|
||||
Gauges: make([]GaugeValue, 0, len(interval.Gauges)),
|
||||
Points: make([]PointValue, 0, len(interval.Points)),
|
||||
}
|
||||
|
||||
// Format and sort the output of each metric type, so it gets displayed in a
|
||||
// deterministic order.
|
||||
for name, points := range interval.Points {
|
||||
summary.Points = append(summary.Points, PointValue{name, points})
|
||||
}
|
||||
sort.Slice(summary.Points, func(i, j int) bool {
|
||||
return summary.Points[i].Name < summary.Points[j].Name
|
||||
})
|
||||
|
||||
for hash, value := range interval.Gauges {
|
||||
value.Hash = hash
|
||||
value.DisplayLabels = make(map[string]string)
|
||||
for _, label := range value.Labels {
|
||||
value.DisplayLabels[label.Name] = label.Value
|
||||
}
|
||||
value.Labels = nil
|
||||
|
||||
summary.Gauges = append(summary.Gauges, value)
|
||||
}
|
||||
sort.Slice(summary.Gauges, func(i, j int) bool {
|
||||
return summary.Gauges[i].Hash < summary.Gauges[j].Hash
|
||||
})
|
||||
|
||||
summary.Counters = formatSamples(interval.Counters)
|
||||
summary.Samples = formatSamples(interval.Samples)
|
||||
|
||||
return summary, nil
|
||||
}
|
||||
|
||||
func formatSamples(source map[string]SampledValue) []SampledValue {
|
||||
output := make([]SampledValue, 0, len(source))
|
||||
for hash, sample := range source {
|
||||
displayLabels := make(map[string]string)
|
||||
for _, label := range sample.Labels {
|
||||
displayLabels[label.Name] = label.Value
|
||||
}
|
||||
|
||||
output = append(output, SampledValue{
|
||||
Name: sample.Name,
|
||||
Hash: hash,
|
||||
AggregateSample: sample.AggregateSample,
|
||||
Mean: sample.AggregateSample.Mean(),
|
||||
Stddev: sample.AggregateSample.Stddev(),
|
||||
DisplayLabels: displayLabels,
|
||||
})
|
||||
}
|
||||
sort.Slice(output, func(i, j int) bool {
|
||||
return output[i].Hash < output[j].Hash
|
||||
})
|
||||
|
||||
return output
|
||||
}
|
||||
117
vendor/github.com/armon/go-metrics/inmem_signal.go
generated
vendored
Normal file
117
vendor/github.com/armon/go-metrics/inmem_signal.go
generated
vendored
Normal file
@ -0,0 +1,117 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"os/signal"
|
||||
"strings"
|
||||
"sync"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// InmemSignal is used to listen for a given signal, and when received,
|
||||
// to dump the current metrics from the InmemSink to an io.Writer
|
||||
type InmemSignal struct {
|
||||
signal syscall.Signal
|
||||
inm *InmemSink
|
||||
w io.Writer
|
||||
sigCh chan os.Signal
|
||||
|
||||
stop bool
|
||||
stopCh chan struct{}
|
||||
stopLock sync.Mutex
|
||||
}
|
||||
|
||||
// NewInmemSignal creates a new InmemSignal which listens for a given signal,
|
||||
// and dumps the current metrics out to a writer
|
||||
func NewInmemSignal(inmem *InmemSink, sig syscall.Signal, w io.Writer) *InmemSignal {
|
||||
i := &InmemSignal{
|
||||
signal: sig,
|
||||
inm: inmem,
|
||||
w: w,
|
||||
sigCh: make(chan os.Signal, 1),
|
||||
stopCh: make(chan struct{}),
|
||||
}
|
||||
signal.Notify(i.sigCh, sig)
|
||||
go i.run()
|
||||
return i
|
||||
}
|
||||
|
||||
// DefaultInmemSignal returns a new InmemSignal that responds to SIGUSR1
|
||||
// and writes output to stderr. Windows uses SIGBREAK
|
||||
func DefaultInmemSignal(inmem *InmemSink) *InmemSignal {
|
||||
return NewInmemSignal(inmem, DefaultSignal, os.Stderr)
|
||||
}
|
||||
|
||||
// Stop is used to stop the InmemSignal from listening
|
||||
func (i *InmemSignal) Stop() {
|
||||
i.stopLock.Lock()
|
||||
defer i.stopLock.Unlock()
|
||||
|
||||
if i.stop {
|
||||
return
|
||||
}
|
||||
i.stop = true
|
||||
close(i.stopCh)
|
||||
signal.Stop(i.sigCh)
|
||||
}
|
||||
|
||||
// run is a long running routine that handles signals
|
||||
func (i *InmemSignal) run() {
|
||||
for {
|
||||
select {
|
||||
case <-i.sigCh:
|
||||
i.dumpStats()
|
||||
case <-i.stopCh:
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// dumpStats is used to dump the data to output writer
|
||||
func (i *InmemSignal) dumpStats() {
|
||||
buf := bytes.NewBuffer(nil)
|
||||
|
||||
data := i.inm.Data()
|
||||
// Skip the last period which is still being aggregated
|
||||
for j := 0; j < len(data)-1; j++ {
|
||||
intv := data[j]
|
||||
intv.RLock()
|
||||
for _, val := range intv.Gauges {
|
||||
name := i.flattenLabels(val.Name, val.Labels)
|
||||
fmt.Fprintf(buf, "[%v][G] '%s': %0.3f\n", intv.Interval, name, val.Value)
|
||||
}
|
||||
for name, vals := range intv.Points {
|
||||
for _, val := range vals {
|
||||
fmt.Fprintf(buf, "[%v][P] '%s': %0.3f\n", intv.Interval, name, val)
|
||||
}
|
||||
}
|
||||
for _, agg := range intv.Counters {
|
||||
name := i.flattenLabels(agg.Name, agg.Labels)
|
||||
fmt.Fprintf(buf, "[%v][C] '%s': %s\n", intv.Interval, name, agg.AggregateSample)
|
||||
}
|
||||
for _, agg := range intv.Samples {
|
||||
name := i.flattenLabels(agg.Name, agg.Labels)
|
||||
fmt.Fprintf(buf, "[%v][S] '%s': %s\n", intv.Interval, name, agg.AggregateSample)
|
||||
}
|
||||
intv.RUnlock()
|
||||
}
|
||||
|
||||
// Write out the bytes
|
||||
i.w.Write(buf.Bytes())
|
||||
}
|
||||
|
||||
// Flattens the key for formatting along with its labels, removes spaces
|
||||
func (i *InmemSignal) flattenLabels(name string, labels []Label) string {
|
||||
buf := bytes.NewBufferString(name)
|
||||
replacer := strings.NewReplacer(" ", "_", ":", "_")
|
||||
|
||||
for _, label := range labels {
|
||||
replacer.WriteString(buf, ".")
|
||||
replacer.WriteString(buf, label.Value)
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
293
vendor/github.com/armon/go-metrics/metrics.go
generated
vendored
Normal file
293
vendor/github.com/armon/go-metrics/metrics.go
generated
vendored
Normal file
@ -0,0 +1,293 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/hashicorp/go-immutable-radix"
|
||||
)
|
||||
|
||||
type Label struct {
|
||||
Name string
|
||||
Value string
|
||||
}
|
||||
|
||||
func (m *Metrics) SetGauge(key []string, val float32) {
|
||||
m.SetGaugeWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (m *Metrics) SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
if m.HostName != "" {
|
||||
if m.EnableHostnameLabel {
|
||||
labels = append(labels, Label{"host", m.HostName})
|
||||
} else if m.EnableHostname {
|
||||
key = insert(0, m.HostName, key)
|
||||
}
|
||||
}
|
||||
if m.EnableTypePrefix {
|
||||
key = insert(0, "gauge", key)
|
||||
}
|
||||
if m.ServiceName != "" {
|
||||
if m.EnableServiceLabel {
|
||||
labels = append(labels, Label{"service", m.ServiceName})
|
||||
} else {
|
||||
key = insert(0, m.ServiceName, key)
|
||||
}
|
||||
}
|
||||
allowed, labelsFiltered := m.allowMetric(key, labels)
|
||||
if !allowed {
|
||||
return
|
||||
}
|
||||
m.sink.SetGaugeWithLabels(key, val, labelsFiltered)
|
||||
}
|
||||
|
||||
func (m *Metrics) EmitKey(key []string, val float32) {
|
||||
if m.EnableTypePrefix {
|
||||
key = insert(0, "kv", key)
|
||||
}
|
||||
if m.ServiceName != "" {
|
||||
key = insert(0, m.ServiceName, key)
|
||||
}
|
||||
allowed, _ := m.allowMetric(key, nil)
|
||||
if !allowed {
|
||||
return
|
||||
}
|
||||
m.sink.EmitKey(key, val)
|
||||
}
|
||||
|
||||
func (m *Metrics) IncrCounter(key []string, val float32) {
|
||||
m.IncrCounterWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (m *Metrics) IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
if m.HostName != "" && m.EnableHostnameLabel {
|
||||
labels = append(labels, Label{"host", m.HostName})
|
||||
}
|
||||
if m.EnableTypePrefix {
|
||||
key = insert(0, "counter", key)
|
||||
}
|
||||
if m.ServiceName != "" {
|
||||
if m.EnableServiceLabel {
|
||||
labels = append(labels, Label{"service", m.ServiceName})
|
||||
} else {
|
||||
key = insert(0, m.ServiceName, key)
|
||||
}
|
||||
}
|
||||
allowed, labelsFiltered := m.allowMetric(key, labels)
|
||||
if !allowed {
|
||||
return
|
||||
}
|
||||
m.sink.IncrCounterWithLabels(key, val, labelsFiltered)
|
||||
}
|
||||
|
||||
func (m *Metrics) AddSample(key []string, val float32) {
|
||||
m.AddSampleWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (m *Metrics) AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
if m.HostName != "" && m.EnableHostnameLabel {
|
||||
labels = append(labels, Label{"host", m.HostName})
|
||||
}
|
||||
if m.EnableTypePrefix {
|
||||
key = insert(0, "sample", key)
|
||||
}
|
||||
if m.ServiceName != "" {
|
||||
if m.EnableServiceLabel {
|
||||
labels = append(labels, Label{"service", m.ServiceName})
|
||||
} else {
|
||||
key = insert(0, m.ServiceName, key)
|
||||
}
|
||||
}
|
||||
allowed, labelsFiltered := m.allowMetric(key, labels)
|
||||
if !allowed {
|
||||
return
|
||||
}
|
||||
m.sink.AddSampleWithLabels(key, val, labelsFiltered)
|
||||
}
|
||||
|
||||
func (m *Metrics) MeasureSince(key []string, start time.Time) {
|
||||
m.MeasureSinceWithLabels(key, start, nil)
|
||||
}
|
||||
|
||||
func (m *Metrics) MeasureSinceWithLabels(key []string, start time.Time, labels []Label) {
|
||||
if m.HostName != "" && m.EnableHostnameLabel {
|
||||
labels = append(labels, Label{"host", m.HostName})
|
||||
}
|
||||
if m.EnableTypePrefix {
|
||||
key = insert(0, "timer", key)
|
||||
}
|
||||
if m.ServiceName != "" {
|
||||
if m.EnableServiceLabel {
|
||||
labels = append(labels, Label{"service", m.ServiceName})
|
||||
} else {
|
||||
key = insert(0, m.ServiceName, key)
|
||||
}
|
||||
}
|
||||
allowed, labelsFiltered := m.allowMetric(key, labels)
|
||||
if !allowed {
|
||||
return
|
||||
}
|
||||
now := time.Now()
|
||||
elapsed := now.Sub(start)
|
||||
msec := float32(elapsed.Nanoseconds()) / float32(m.TimerGranularity)
|
||||
m.sink.AddSampleWithLabels(key, msec, labelsFiltered)
|
||||
}
|
||||
|
||||
// UpdateFilter overwrites the existing filter with the given rules.
|
||||
func (m *Metrics) UpdateFilter(allow, block []string) {
|
||||
m.UpdateFilterAndLabels(allow, block, m.AllowedLabels, m.BlockedLabels)
|
||||
}
|
||||
|
||||
// UpdateFilterAndLabels overwrites the existing filter with the given rules.
|
||||
func (m *Metrics) UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabels []string) {
|
||||
m.filterLock.Lock()
|
||||
defer m.filterLock.Unlock()
|
||||
|
||||
m.AllowedPrefixes = allow
|
||||
m.BlockedPrefixes = block
|
||||
|
||||
if allowedLabels == nil {
|
||||
// Having a white list means we take only elements from it
|
||||
m.allowedLabels = nil
|
||||
} else {
|
||||
m.allowedLabels = make(map[string]bool)
|
||||
for _, v := range allowedLabels {
|
||||
m.allowedLabels[v] = true
|
||||
}
|
||||
}
|
||||
m.blockedLabels = make(map[string]bool)
|
||||
for _, v := range blockedLabels {
|
||||
m.blockedLabels[v] = true
|
||||
}
|
||||
m.AllowedLabels = allowedLabels
|
||||
m.BlockedLabels = blockedLabels
|
||||
|
||||
m.filter = iradix.New()
|
||||
for _, prefix := range m.AllowedPrefixes {
|
||||
m.filter, _, _ = m.filter.Insert([]byte(prefix), true)
|
||||
}
|
||||
for _, prefix := range m.BlockedPrefixes {
|
||||
m.filter, _, _ = m.filter.Insert([]byte(prefix), false)
|
||||
}
|
||||
}
|
||||
|
||||
// labelIsAllowed return true if a should be included in metric
|
||||
// the caller should lock m.filterLock while calling this method
|
||||
func (m *Metrics) labelIsAllowed(label *Label) bool {
|
||||
labelName := (*label).Name
|
||||
if m.blockedLabels != nil {
|
||||
_, ok := m.blockedLabels[labelName]
|
||||
if ok {
|
||||
// If present, let's remove this label
|
||||
return false
|
||||
}
|
||||
}
|
||||
if m.allowedLabels != nil {
|
||||
_, ok := m.allowedLabels[labelName]
|
||||
return ok
|
||||
}
|
||||
// Allow by default
|
||||
return true
|
||||
}
|
||||
|
||||
// filterLabels return only allowed labels
|
||||
// the caller should lock m.filterLock while calling this method
|
||||
func (m *Metrics) filterLabels(labels []Label) []Label {
|
||||
if labels == nil {
|
||||
return nil
|
||||
}
|
||||
toReturn := []Label{}
|
||||
for _, label := range labels {
|
||||
if m.labelIsAllowed(&label) {
|
||||
toReturn = append(toReturn, label)
|
||||
}
|
||||
}
|
||||
return toReturn
|
||||
}
|
||||
|
||||
// Returns whether the metric should be allowed based on configured prefix filters
|
||||
// Also return the applicable labels
|
||||
func (m *Metrics) allowMetric(key []string, labels []Label) (bool, []Label) {
|
||||
m.filterLock.RLock()
|
||||
defer m.filterLock.RUnlock()
|
||||
|
||||
if m.filter == nil || m.filter.Len() == 0 {
|
||||
return m.Config.FilterDefault, m.filterLabels(labels)
|
||||
}
|
||||
|
||||
_, allowed, ok := m.filter.Root().LongestPrefix([]byte(strings.Join(key, ".")))
|
||||
if !ok {
|
||||
return m.Config.FilterDefault, m.filterLabels(labels)
|
||||
}
|
||||
|
||||
return allowed.(bool), m.filterLabels(labels)
|
||||
}
|
||||
|
||||
// Periodically collects runtime stats to publish
|
||||
func (m *Metrics) collectStats() {
|
||||
for {
|
||||
time.Sleep(m.ProfileInterval)
|
||||
m.emitRuntimeStats()
|
||||
}
|
||||
}
|
||||
|
||||
// Emits various runtime statsitics
|
||||
func (m *Metrics) emitRuntimeStats() {
|
||||
// Export number of Goroutines
|
||||
numRoutines := runtime.NumGoroutine()
|
||||
m.SetGauge([]string{"runtime", "num_goroutines"}, float32(numRoutines))
|
||||
|
||||
// Export memory stats
|
||||
var stats runtime.MemStats
|
||||
runtime.ReadMemStats(&stats)
|
||||
m.SetGauge([]string{"runtime", "alloc_bytes"}, float32(stats.Alloc))
|
||||
m.SetGauge([]string{"runtime", "sys_bytes"}, float32(stats.Sys))
|
||||
m.SetGauge([]string{"runtime", "malloc_count"}, float32(stats.Mallocs))
|
||||
m.SetGauge([]string{"runtime", "free_count"}, float32(stats.Frees))
|
||||
m.SetGauge([]string{"runtime", "heap_objects"}, float32(stats.HeapObjects))
|
||||
m.SetGauge([]string{"runtime", "total_gc_pause_ns"}, float32(stats.PauseTotalNs))
|
||||
m.SetGauge([]string{"runtime", "total_gc_runs"}, float32(stats.NumGC))
|
||||
|
||||
// Export info about the last few GC runs
|
||||
num := stats.NumGC
|
||||
|
||||
// Handle wrap around
|
||||
if num < m.lastNumGC {
|
||||
m.lastNumGC = 0
|
||||
}
|
||||
|
||||
// Ensure we don't scan more than 256
|
||||
if num-m.lastNumGC >= 256 {
|
||||
m.lastNumGC = num - 255
|
||||
}
|
||||
|
||||
for i := m.lastNumGC; i < num; i++ {
|
||||
pause := stats.PauseNs[i%256]
|
||||
m.AddSample([]string{"runtime", "gc_pause_ns"}, float32(pause))
|
||||
}
|
||||
m.lastNumGC = num
|
||||
}
|
||||
|
||||
// Creates a new slice with the provided string value as the first element
|
||||
// and the provided slice values as the remaining values.
|
||||
// Ordering of the values in the provided input slice is kept in tact in the output slice.
|
||||
func insert(i int, v string, s []string) []string {
|
||||
// Allocate new slice to avoid modifying the input slice
|
||||
newS := make([]string, len(s)+1)
|
||||
|
||||
// Copy s[0, i-1] into newS
|
||||
for j := 0; j < i; j++ {
|
||||
newS[j] = s[j]
|
||||
}
|
||||
|
||||
// Insert provided element at index i
|
||||
newS[i] = v
|
||||
|
||||
// Copy s[i, len(s)-1] into newS starting at newS[i+1]
|
||||
for j := i; j < len(s); j++ {
|
||||
newS[j+1] = s[j]
|
||||
}
|
||||
|
||||
return newS
|
||||
}
|
||||
115
vendor/github.com/armon/go-metrics/sink.go
generated
vendored
Normal file
115
vendor/github.com/armon/go-metrics/sink.go
generated
vendored
Normal file
@ -0,0 +1,115 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/url"
|
||||
)
|
||||
|
||||
// The MetricSink interface is used to transmit metrics information
|
||||
// to an external system
|
||||
type MetricSink interface {
|
||||
// A Gauge should retain the last value it is set to
|
||||
SetGauge(key []string, val float32)
|
||||
SetGaugeWithLabels(key []string, val float32, labels []Label)
|
||||
|
||||
// Should emit a Key/Value pair for each call
|
||||
EmitKey(key []string, val float32)
|
||||
|
||||
// Counters should accumulate values
|
||||
IncrCounter(key []string, val float32)
|
||||
IncrCounterWithLabels(key []string, val float32, labels []Label)
|
||||
|
||||
// Samples are for timing information, where quantiles are used
|
||||
AddSample(key []string, val float32)
|
||||
AddSampleWithLabels(key []string, val float32, labels []Label)
|
||||
}
|
||||
|
||||
// BlackholeSink is used to just blackhole messages
|
||||
type BlackholeSink struct{}
|
||||
|
||||
func (*BlackholeSink) SetGauge(key []string, val float32) {}
|
||||
func (*BlackholeSink) SetGaugeWithLabels(key []string, val float32, labels []Label) {}
|
||||
func (*BlackholeSink) EmitKey(key []string, val float32) {}
|
||||
func (*BlackholeSink) IncrCounter(key []string, val float32) {}
|
||||
func (*BlackholeSink) IncrCounterWithLabels(key []string, val float32, labels []Label) {}
|
||||
func (*BlackholeSink) AddSample(key []string, val float32) {}
|
||||
func (*BlackholeSink) AddSampleWithLabels(key []string, val float32, labels []Label) {}
|
||||
|
||||
// FanoutSink is used to sink to fanout values to multiple sinks
|
||||
type FanoutSink []MetricSink
|
||||
|
||||
func (fh FanoutSink) SetGauge(key []string, val float32) {
|
||||
fh.SetGaugeWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (fh FanoutSink) SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
for _, s := range fh {
|
||||
s.SetGaugeWithLabels(key, val, labels)
|
||||
}
|
||||
}
|
||||
|
||||
func (fh FanoutSink) EmitKey(key []string, val float32) {
|
||||
for _, s := range fh {
|
||||
s.EmitKey(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (fh FanoutSink) IncrCounter(key []string, val float32) {
|
||||
fh.IncrCounterWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (fh FanoutSink) IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
for _, s := range fh {
|
||||
s.IncrCounterWithLabels(key, val, labels)
|
||||
}
|
||||
}
|
||||
|
||||
func (fh FanoutSink) AddSample(key []string, val float32) {
|
||||
fh.AddSampleWithLabels(key, val, nil)
|
||||
}
|
||||
|
||||
func (fh FanoutSink) AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
for _, s := range fh {
|
||||
s.AddSampleWithLabels(key, val, labels)
|
||||
}
|
||||
}
|
||||
|
||||
// sinkURLFactoryFunc is an generic interface around the *SinkFromURL() function provided
|
||||
// by each sink type
|
||||
type sinkURLFactoryFunc func(*url.URL) (MetricSink, error)
|
||||
|
||||
// sinkRegistry supports the generic NewMetricSink function by mapping URL
|
||||
// schemes to metric sink factory functions
|
||||
var sinkRegistry = map[string]sinkURLFactoryFunc{
|
||||
"statsd": NewStatsdSinkFromURL,
|
||||
"statsite": NewStatsiteSinkFromURL,
|
||||
"inmem": NewInmemSinkFromURL,
|
||||
}
|
||||
|
||||
// NewMetricSinkFromURL allows a generic URL input to configure any of the
|
||||
// supported sinks. The scheme of the URL identifies the type of the sink, the
|
||||
// and query parameters are used to set options.
|
||||
//
|
||||
// "statsd://" - Initializes a StatsdSink. The host and port are passed through
|
||||
// as the "addr" of the sink
|
||||
//
|
||||
// "statsite://" - Initializes a StatsiteSink. The host and port become the
|
||||
// "addr" of the sink
|
||||
//
|
||||
// "inmem://" - Initializes an InmemSink. The host and port are ignored. The
|
||||
// "interval" and "duration" query parameters must be specified with valid
|
||||
// durations, see NewInmemSink for details.
|
||||
func NewMetricSinkFromURL(urlStr string) (MetricSink, error) {
|
||||
u, err := url.Parse(urlStr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sinkURLFactoryFunc := sinkRegistry[u.Scheme]
|
||||
if sinkURLFactoryFunc == nil {
|
||||
return nil, fmt.Errorf(
|
||||
"cannot create metric sink, unrecognized sink name: %q", u.Scheme)
|
||||
}
|
||||
|
||||
return sinkURLFactoryFunc(u)
|
||||
}
|
||||
141
vendor/github.com/armon/go-metrics/start.go
generated
vendored
Normal file
141
vendor/github.com/armon/go-metrics/start.go
generated
vendored
Normal file
@ -0,0 +1,141 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"os"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/hashicorp/go-immutable-radix"
|
||||
)
|
||||
|
||||
// Config is used to configure metrics settings
|
||||
type Config struct {
|
||||
ServiceName string // Prefixed with keys to separate services
|
||||
HostName string // Hostname to use. If not provided and EnableHostname, it will be os.Hostname
|
||||
EnableHostname bool // Enable prefixing gauge values with hostname
|
||||
EnableHostnameLabel bool // Enable adding hostname to labels
|
||||
EnableServiceLabel bool // Enable adding service to labels
|
||||
EnableRuntimeMetrics bool // Enables profiling of runtime metrics (GC, Goroutines, Memory)
|
||||
EnableTypePrefix bool // Prefixes key with a type ("counter", "gauge", "timer")
|
||||
TimerGranularity time.Duration // Granularity of timers.
|
||||
ProfileInterval time.Duration // Interval to profile runtime metrics
|
||||
|
||||
AllowedPrefixes []string // A list of metric prefixes to allow, with '.' as the separator
|
||||
BlockedPrefixes []string // A list of metric prefixes to block, with '.' as the separator
|
||||
AllowedLabels []string // A list of metric labels to allow, with '.' as the separator
|
||||
BlockedLabels []string // A list of metric labels to block, with '.' as the separator
|
||||
FilterDefault bool // Whether to allow metrics by default
|
||||
}
|
||||
|
||||
// Metrics represents an instance of a metrics sink that can
|
||||
// be used to emit
|
||||
type Metrics struct {
|
||||
Config
|
||||
lastNumGC uint32
|
||||
sink MetricSink
|
||||
filter *iradix.Tree
|
||||
allowedLabels map[string]bool
|
||||
blockedLabels map[string]bool
|
||||
filterLock sync.RWMutex // Lock filters and allowedLabels/blockedLabels access
|
||||
}
|
||||
|
||||
// Shared global metrics instance
|
||||
var globalMetrics atomic.Value // *Metrics
|
||||
|
||||
func init() {
|
||||
// Initialize to a blackhole sink to avoid errors
|
||||
globalMetrics.Store(&Metrics{sink: &BlackholeSink{}})
|
||||
}
|
||||
|
||||
// DefaultConfig provides a sane default configuration
|
||||
func DefaultConfig(serviceName string) *Config {
|
||||
c := &Config{
|
||||
ServiceName: serviceName, // Use client provided service
|
||||
HostName: "",
|
||||
EnableHostname: true, // Enable hostname prefix
|
||||
EnableRuntimeMetrics: true, // Enable runtime profiling
|
||||
EnableTypePrefix: false, // Disable type prefix
|
||||
TimerGranularity: time.Millisecond, // Timers are in milliseconds
|
||||
ProfileInterval: time.Second, // Poll runtime every second
|
||||
FilterDefault: true, // Don't filter metrics by default
|
||||
}
|
||||
|
||||
// Try to get the hostname
|
||||
name, _ := os.Hostname()
|
||||
c.HostName = name
|
||||
return c
|
||||
}
|
||||
|
||||
// New is used to create a new instance of Metrics
|
||||
func New(conf *Config, sink MetricSink) (*Metrics, error) {
|
||||
met := &Metrics{}
|
||||
met.Config = *conf
|
||||
met.sink = sink
|
||||
met.UpdateFilterAndLabels(conf.AllowedPrefixes, conf.BlockedPrefixes, conf.AllowedLabels, conf.BlockedLabels)
|
||||
|
||||
// Start the runtime collector
|
||||
if conf.EnableRuntimeMetrics {
|
||||
go met.collectStats()
|
||||
}
|
||||
return met, nil
|
||||
}
|
||||
|
||||
// NewGlobal is the same as New, but it assigns the metrics object to be
|
||||
// used globally as well as returning it.
|
||||
func NewGlobal(conf *Config, sink MetricSink) (*Metrics, error) {
|
||||
metrics, err := New(conf, sink)
|
||||
if err == nil {
|
||||
globalMetrics.Store(metrics)
|
||||
}
|
||||
return metrics, err
|
||||
}
|
||||
|
||||
// Proxy all the methods to the globalMetrics instance
|
||||
func SetGauge(key []string, val float32) {
|
||||
globalMetrics.Load().(*Metrics).SetGauge(key, val)
|
||||
}
|
||||
|
||||
func SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
globalMetrics.Load().(*Metrics).SetGaugeWithLabels(key, val, labels)
|
||||
}
|
||||
|
||||
func EmitKey(key []string, val float32) {
|
||||
globalMetrics.Load().(*Metrics).EmitKey(key, val)
|
||||
}
|
||||
|
||||
func IncrCounter(key []string, val float32) {
|
||||
globalMetrics.Load().(*Metrics).IncrCounter(key, val)
|
||||
}
|
||||
|
||||
func IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
globalMetrics.Load().(*Metrics).IncrCounterWithLabels(key, val, labels)
|
||||
}
|
||||
|
||||
func AddSample(key []string, val float32) {
|
||||
globalMetrics.Load().(*Metrics).AddSample(key, val)
|
||||
}
|
||||
|
||||
func AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
globalMetrics.Load().(*Metrics).AddSampleWithLabels(key, val, labels)
|
||||
}
|
||||
|
||||
func MeasureSince(key []string, start time.Time) {
|
||||
globalMetrics.Load().(*Metrics).MeasureSince(key, start)
|
||||
}
|
||||
|
||||
func MeasureSinceWithLabels(key []string, start time.Time, labels []Label) {
|
||||
globalMetrics.Load().(*Metrics).MeasureSinceWithLabels(key, start, labels)
|
||||
}
|
||||
|
||||
func UpdateFilter(allow, block []string) {
|
||||
globalMetrics.Load().(*Metrics).UpdateFilter(allow, block)
|
||||
}
|
||||
|
||||
// UpdateFilterAndLabels set allow/block prefixes of metrics while allowedLabels
|
||||
// and blockedLabels - when not nil - allow filtering of labels in order to
|
||||
// block/allow globally labels (especially useful when having large number of
|
||||
// values for a given label). See README.md for more information about usage.
|
||||
func UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabels []string) {
|
||||
globalMetrics.Load().(*Metrics).UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabels)
|
||||
}
|
||||
184
vendor/github.com/armon/go-metrics/statsd.go
generated
vendored
Normal file
184
vendor/github.com/armon/go-metrics/statsd.go
generated
vendored
Normal file
@ -0,0 +1,184 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"net/url"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
// statsdMaxLen is the maximum size of a packet
|
||||
// to send to statsd
|
||||
statsdMaxLen = 1400
|
||||
)
|
||||
|
||||
// StatsdSink provides a MetricSink that can be used
|
||||
// with a statsite or statsd metrics server. It uses
|
||||
// only UDP packets, while StatsiteSink uses TCP.
|
||||
type StatsdSink struct {
|
||||
addr string
|
||||
metricQueue chan string
|
||||
}
|
||||
|
||||
// NewStatsdSinkFromURL creates an StatsdSink from a URL. It is used
|
||||
// (and tested) from NewMetricSinkFromURL.
|
||||
func NewStatsdSinkFromURL(u *url.URL) (MetricSink, error) {
|
||||
return NewStatsdSink(u.Host)
|
||||
}
|
||||
|
||||
// NewStatsdSink is used to create a new StatsdSink
|
||||
func NewStatsdSink(addr string) (*StatsdSink, error) {
|
||||
s := &StatsdSink{
|
||||
addr: addr,
|
||||
metricQueue: make(chan string, 4096),
|
||||
}
|
||||
go s.flushMetrics()
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// Close is used to stop flushing to statsd
|
||||
func (s *StatsdSink) Shutdown() {
|
||||
close(s.metricQueue)
|
||||
}
|
||||
|
||||
func (s *StatsdSink) SetGauge(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|g\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|g\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) EmitKey(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|kv\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) IncrCounter(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|c\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|c\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) AddSample(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|ms\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsdSink) AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|ms\n", flatKey, val))
|
||||
}
|
||||
|
||||
// Flattens the key for formatting, removes spaces
|
||||
func (s *StatsdSink) flattenKey(parts []string) string {
|
||||
joined := strings.Join(parts, ".")
|
||||
return strings.Map(func(r rune) rune {
|
||||
switch r {
|
||||
case ':':
|
||||
fallthrough
|
||||
case ' ':
|
||||
return '_'
|
||||
default:
|
||||
return r
|
||||
}
|
||||
}, joined)
|
||||
}
|
||||
|
||||
// Flattens the key along with labels for formatting, removes spaces
|
||||
func (s *StatsdSink) flattenKeyLabels(parts []string, labels []Label) string {
|
||||
for _, label := range labels {
|
||||
parts = append(parts, label.Value)
|
||||
}
|
||||
return s.flattenKey(parts)
|
||||
}
|
||||
|
||||
// Does a non-blocking push to the metrics queue
|
||||
func (s *StatsdSink) pushMetric(m string) {
|
||||
select {
|
||||
case s.metricQueue <- m:
|
||||
default:
|
||||
}
|
||||
}
|
||||
|
||||
// Flushes metrics
|
||||
func (s *StatsdSink) flushMetrics() {
|
||||
var sock net.Conn
|
||||
var err error
|
||||
var wait <-chan time.Time
|
||||
ticker := time.NewTicker(flushInterval)
|
||||
defer ticker.Stop()
|
||||
|
||||
CONNECT:
|
||||
// Create a buffer
|
||||
buf := bytes.NewBuffer(nil)
|
||||
|
||||
// Attempt to connect
|
||||
sock, err = net.Dial("udp", s.addr)
|
||||
if err != nil {
|
||||
log.Printf("[ERR] Error connecting to statsd! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
|
||||
for {
|
||||
select {
|
||||
case metric, ok := <-s.metricQueue:
|
||||
// Get a metric from the queue
|
||||
if !ok {
|
||||
goto QUIT
|
||||
}
|
||||
|
||||
// Check if this would overflow the packet size
|
||||
if len(metric)+buf.Len() > statsdMaxLen {
|
||||
_, err := sock.Write(buf.Bytes())
|
||||
buf.Reset()
|
||||
if err != nil {
|
||||
log.Printf("[ERR] Error writing to statsd! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
}
|
||||
|
||||
// Append to the buffer
|
||||
buf.WriteString(metric)
|
||||
|
||||
case <-ticker.C:
|
||||
if buf.Len() == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
_, err := sock.Write(buf.Bytes())
|
||||
buf.Reset()
|
||||
if err != nil {
|
||||
log.Printf("[ERR] Error flushing to statsd! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
WAIT:
|
||||
// Wait for a while
|
||||
wait = time.After(time.Duration(5) * time.Second)
|
||||
for {
|
||||
select {
|
||||
// Dequeue the messages to avoid backlog
|
||||
case _, ok := <-s.metricQueue:
|
||||
if !ok {
|
||||
goto QUIT
|
||||
}
|
||||
case <-wait:
|
||||
goto CONNECT
|
||||
}
|
||||
}
|
||||
QUIT:
|
||||
s.metricQueue = nil
|
||||
}
|
||||
172
vendor/github.com/armon/go-metrics/statsite.go
generated
vendored
Normal file
172
vendor/github.com/armon/go-metrics/statsite.go
generated
vendored
Normal file
@ -0,0 +1,172 @@
|
||||
package metrics
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"net/url"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
// We force flush the statsite metrics after this period of
|
||||
// inactivity. Prevents stats from getting stuck in a buffer
|
||||
// forever.
|
||||
flushInterval = 100 * time.Millisecond
|
||||
)
|
||||
|
||||
// NewStatsiteSinkFromURL creates an StatsiteSink from a URL. It is used
|
||||
// (and tested) from NewMetricSinkFromURL.
|
||||
func NewStatsiteSinkFromURL(u *url.URL) (MetricSink, error) {
|
||||
return NewStatsiteSink(u.Host)
|
||||
}
|
||||
|
||||
// StatsiteSink provides a MetricSink that can be used with a
|
||||
// statsite metrics server
|
||||
type StatsiteSink struct {
|
||||
addr string
|
||||
metricQueue chan string
|
||||
}
|
||||
|
||||
// NewStatsiteSink is used to create a new StatsiteSink
|
||||
func NewStatsiteSink(addr string) (*StatsiteSink, error) {
|
||||
s := &StatsiteSink{
|
||||
addr: addr,
|
||||
metricQueue: make(chan string, 4096),
|
||||
}
|
||||
go s.flushMetrics()
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// Close is used to stop flushing to statsite
|
||||
func (s *StatsiteSink) Shutdown() {
|
||||
close(s.metricQueue)
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) SetGauge(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|g\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) SetGaugeWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|g\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) EmitKey(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|kv\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) IncrCounter(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|c\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) IncrCounterWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|c\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) AddSample(key []string, val float32) {
|
||||
flatKey := s.flattenKey(key)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|ms\n", flatKey, val))
|
||||
}
|
||||
|
||||
func (s *StatsiteSink) AddSampleWithLabels(key []string, val float32, labels []Label) {
|
||||
flatKey := s.flattenKeyLabels(key, labels)
|
||||
s.pushMetric(fmt.Sprintf("%s:%f|ms\n", flatKey, val))
|
||||
}
|
||||
|
||||
// Flattens the key for formatting, removes spaces
|
||||
func (s *StatsiteSink) flattenKey(parts []string) string {
|
||||
joined := strings.Join(parts, ".")
|
||||
return strings.Map(func(r rune) rune {
|
||||
switch r {
|
||||
case ':':
|
||||
fallthrough
|
||||
case ' ':
|
||||
return '_'
|
||||
default:
|
||||
return r
|
||||
}
|
||||
}, joined)
|
||||
}
|
||||
|
||||
// Flattens the key along with labels for formatting, removes spaces
|
||||
func (s *StatsiteSink) flattenKeyLabels(parts []string, labels []Label) string {
|
||||
for _, label := range labels {
|
||||
parts = append(parts, label.Value)
|
||||
}
|
||||
return s.flattenKey(parts)
|
||||
}
|
||||
|
||||
// Does a non-blocking push to the metrics queue
|
||||
func (s *StatsiteSink) pushMetric(m string) {
|
||||
select {
|
||||
case s.metricQueue <- m:
|
||||
default:
|
||||
}
|
||||
}
|
||||
|
||||
// Flushes metrics
|
||||
func (s *StatsiteSink) flushMetrics() {
|
||||
var sock net.Conn
|
||||
var err error
|
||||
var wait <-chan time.Time
|
||||
var buffered *bufio.Writer
|
||||
ticker := time.NewTicker(flushInterval)
|
||||
defer ticker.Stop()
|
||||
|
||||
CONNECT:
|
||||
// Attempt to connect
|
||||
sock, err = net.Dial("tcp", s.addr)
|
||||
if err != nil {
|
||||
log.Printf("[ERR] Error connecting to statsite! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
|
||||
// Create a buffered writer
|
||||
buffered = bufio.NewWriter(sock)
|
||||
|
||||
for {
|
||||
select {
|
||||
case metric, ok := <-s.metricQueue:
|
||||
// Get a metric from the queue
|
||||
if !ok {
|
||||
goto QUIT
|
||||
}
|
||||
|
||||
// Try to send to statsite
|
||||
_, err := buffered.Write([]byte(metric))
|
||||
if err != nil {
|
||||
log.Printf("[ERR] Error writing to statsite! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
case <-ticker.C:
|
||||
if err := buffered.Flush(); err != nil {
|
||||
log.Printf("[ERR] Error flushing to statsite! Err: %s", err)
|
||||
goto WAIT
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
WAIT:
|
||||
// Wait for a while
|
||||
wait = time.After(time.Duration(5) * time.Second)
|
||||
for {
|
||||
select {
|
||||
// Dequeue the messages to avoid backlog
|
||||
case _, ok := <-s.metricQueue:
|
||||
if !ok {
|
||||
goto QUIT
|
||||
}
|
||||
case <-wait:
|
||||
goto CONNECT
|
||||
}
|
||||
}
|
||||
QUIT:
|
||||
s.metricQueue = nil
|
||||
}
|
||||
22
vendor/github.com/armon/go-radix/.gitignore
generated
vendored
Normal file
22
vendor/github.com/armon/go-radix/.gitignore
generated
vendored
Normal file
@ -0,0 +1,22 @@
|
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects)
|
||||
*.o
|
||||
*.a
|
||||
*.so
|
||||
|
||||
# Folders
|
||||
_obj
|
||||
_test
|
||||
|
||||
# Architecture specific extensions/prefixes
|
||||
*.[568vq]
|
||||
[568vq].out
|
||||
|
||||
*.cgo1.go
|
||||
*.cgo2.c
|
||||
_cgo_defun.c
|
||||
_cgo_gotypes.go
|
||||
_cgo_export.*
|
||||
|
||||
_testmain.go
|
||||
|
||||
*.exe
|
||||
3
vendor/github.com/armon/go-radix/.travis.yml
generated
vendored
Normal file
3
vendor/github.com/armon/go-radix/.travis.yml
generated
vendored
Normal file
@ -0,0 +1,3 @@
|
||||
language: go
|
||||
go:
|
||||
- tip
|
||||
20
vendor/github.com/armon/go-radix/LICENSE
generated
vendored
Normal file
20
vendor/github.com/armon/go-radix/LICENSE
generated
vendored
Normal file
@ -0,0 +1,20 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2014 Armon Dadgar
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
38
vendor/github.com/armon/go-radix/README.md
generated
vendored
Normal file
38
vendor/github.com/armon/go-radix/README.md
generated
vendored
Normal file
@ -0,0 +1,38 @@
|
||||
go-radix [](https://travis-ci.org/armon/go-radix)
|
||||
=========
|
||||
|
||||
Provides the `radix` package that implements a [radix tree](http://en.wikipedia.org/wiki/Radix_tree).
|
||||
The package only provides a single `Tree` implementation, optimized for sparse nodes.
|
||||
|
||||
As a radix tree, it provides the following:
|
||||
* O(k) operations. In many cases, this can be faster than a hash table since
|
||||
the hash function is an O(k) operation, and hash tables have very poor cache locality.
|
||||
* Minimum / Maximum value lookups
|
||||
* Ordered iteration
|
||||
|
||||
For an immutable variant, see [go-immutable-radix](https://github.com/hashicorp/go-immutable-radix).
|
||||
|
||||
Documentation
|
||||
=============
|
||||
|
||||
The full documentation is available on [Godoc](http://godoc.org/github.com/armon/go-radix).
|
||||
|
||||
Example
|
||||
=======
|
||||
|
||||
Below is a simple example of usage
|
||||
|
||||
```go
|
||||
// Create a tree
|
||||
r := radix.New()
|
||||
r.Insert("foo", 1)
|
||||
r.Insert("bar", 2)
|
||||
r.Insert("foobar", 2)
|
||||
|
||||
// Find the longest prefix match
|
||||
m, _, _ := r.LongestPrefix("foozip")
|
||||
if m != "foo" {
|
||||
panic("should be foo")
|
||||
}
|
||||
```
|
||||
|
||||
1
vendor/github.com/armon/go-radix/go.mod
generated
vendored
Normal file
1
vendor/github.com/armon/go-radix/go.mod
generated
vendored
Normal file
@ -0,0 +1 @@
|
||||
module github.com/armon/go-radix
|
||||
540
vendor/github.com/armon/go-radix/radix.go
generated
vendored
Normal file
540
vendor/github.com/armon/go-radix/radix.go
generated
vendored
Normal file
@ -0,0 +1,540 @@
|
||||
package radix
|
||||
|
||||
import (
|
||||
"sort"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// WalkFn is used when walking the tree. Takes a
|
||||
// key and value, returning if iteration should
|
||||
// be terminated.
|
||||
type WalkFn func(s string, v interface{}) bool
|
||||
|
||||
// leafNode is used to represent a value
|
||||
type leafNode struct {
|
||||
key string
|
||||
val interface{}
|
||||
}
|
||||
|
||||
// edge is used to represent an edge node
|
||||
type edge struct {
|
||||
label byte
|
||||
node *node
|
||||
}
|
||||
|
||||
type node struct {
|
||||
// leaf is used to store possible leaf
|
||||
leaf *leafNode
|
||||
|
||||
// prefix is the common prefix we ignore
|
||||
prefix string
|
||||
|
||||
// Edges should be stored in-order for iteration.
|
||||
// We avoid a fully materialized slice to save memory,
|
||||
// since in most cases we expect to be sparse
|
||||
edges edges
|
||||
}
|
||||
|
||||
func (n *node) isLeaf() bool {
|
||||
return n.leaf != nil
|
||||
}
|
||||
|
||||
func (n *node) addEdge(e edge) {
|
||||
n.edges = append(n.edges, e)
|
||||
n.edges.Sort()
|
||||
}
|
||||
|
||||
func (n *node) updateEdge(label byte, node *node) {
|
||||
num := len(n.edges)
|
||||
idx := sort.Search(num, func(i int) bool {
|
||||
return n.edges[i].label >= label
|
||||
})
|
||||
if idx < num && n.edges[idx].label == label {
|
||||
n.edges[idx].node = node
|
||||
return
|
||||
}
|
||||
panic("replacing missing edge")
|
||||
}
|
||||
|
||||
func (n *node) getEdge(label byte) *node {
|
||||
num := len(n.edges)
|
||||
idx := sort.Search(num, func(i int) bool {
|
||||
return n.edges[i].label >= label
|
||||
})
|
||||
if idx < num && n.edges[idx].label == label {
|
||||
return n.edges[idx].node
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (n *node) delEdge(label byte) {
|
||||
num := len(n.edges)
|
||||
idx := sort.Search(num, func(i int) bool {
|
||||
return n.edges[i].label >= label
|
||||
})
|
||||
if idx < num && n.edges[idx].label == label {
|
||||
copy(n.edges[idx:], n.edges[idx+1:])
|
||||
n.edges[len(n.edges)-1] = edge{}
|
||||
n.edges = n.edges[:len(n.edges)-1]
|
||||
}
|
||||
}
|
||||
|
||||
type edges []edge
|
||||
|
||||
func (e edges) Len() int {
|
||||
return len(e)
|
||||
}
|
||||
|
||||
func (e edges) Less(i, j int) bool {
|
||||
return e[i].label < e[j].label
|
||||
}
|
||||
|
||||
func (e edges) Swap(i, j int) {
|
||||
e[i], e[j] = e[j], e[i]
|
||||
}
|
||||
|
||||
func (e edges) Sort() {
|
||||
sort.Sort(e)
|
||||
}
|
||||
|
||||
// Tree implements a radix tree. This can be treated as a
|
||||
// Dictionary abstract data type. The main advantage over
|
||||
// a standard hash map is prefix-based lookups and
|
||||
// ordered iteration,
|
||||
type Tree struct {
|
||||
root *node
|
||||
size int
|
||||
}
|
||||
|
||||
// New returns an empty Tree
|
||||
func New() *Tree {
|
||||
return NewFromMap(nil)
|
||||
}
|
||||
|
||||
// NewFromMap returns a new tree containing the keys
|
||||
// from an existing map
|
||||
func NewFromMap(m map[string]interface{}) *Tree {
|
||||
t := &Tree{root: &node{}}
|
||||
for k, v := range m {
|
||||
t.Insert(k, v)
|
||||
}
|
||||
return t
|
||||
}
|
||||
|
||||
// Len is used to return the number of elements in the tree
|
||||
func (t *Tree) Len() int {
|
||||
return t.size
|
||||
}
|
||||
|
||||
// longestPrefix finds the length of the shared prefix
|
||||
// of two strings
|
||||
func longestPrefix(k1, k2 string) int {
|
||||
max := len(k1)
|
||||
if l := len(k2); l < max {
|
||||
max = l
|
||||
}
|
||||
var i int
|
||||
for i = 0; i < max; i++ {
|
||||
if k1[i] != k2[i] {
|
||||
break
|
||||
}
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
// Insert is used to add a newentry or update
|
||||
// an existing entry. Returns if updated.
|
||||
func (t *Tree) Insert(s string, v interface{}) (interface{}, bool) {
|
||||
var parent *node
|
||||
n := t.root
|
||||
search := s
|
||||
for {
|
||||
// Handle key exhaution
|
||||
if len(search) == 0 {
|
||||
if n.isLeaf() {
|
||||
old := n.leaf.val
|
||||
n.leaf.val = v
|
||||
return old, true
|
||||
}
|
||||
|
||||
n.leaf = &leafNode{
|
||||
key: s,
|
||||
val: v,
|
||||
}
|
||||
t.size++
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Look for the edge
|
||||
parent = n
|
||||
n = n.getEdge(search[0])
|
||||
|
||||
// No edge, create one
|
||||
if n == nil {
|
||||
e := edge{
|
||||
label: search[0],
|
||||
node: &node{
|
||||
leaf: &leafNode{
|
||||
key: s,
|
||||
val: v,
|
||||
},
|
||||
prefix: search,
|
||||
},
|
||||
}
|
||||
parent.addEdge(e)
|
||||
t.size++
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Determine longest prefix of the search key on match
|
||||
commonPrefix := longestPrefix(search, n.prefix)
|
||||
if commonPrefix == len(n.prefix) {
|
||||
search = search[commonPrefix:]
|
||||
continue
|
||||
}
|
||||
|
||||
// Split the node
|
||||
t.size++
|
||||
child := &node{
|
||||
prefix: search[:commonPrefix],
|
||||
}
|
||||
parent.updateEdge(search[0], child)
|
||||
|
||||
// Restore the existing node
|
||||
child.addEdge(edge{
|
||||
label: n.prefix[commonPrefix],
|
||||
node: n,
|
||||
})
|
||||
n.prefix = n.prefix[commonPrefix:]
|
||||
|
||||
// Create a new leaf node
|
||||
leaf := &leafNode{
|
||||
key: s,
|
||||
val: v,
|
||||
}
|
||||
|
||||
// If the new key is a subset, add to to this node
|
||||
search = search[commonPrefix:]
|
||||
if len(search) == 0 {
|
||||
child.leaf = leaf
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Create a new edge for the node
|
||||
child.addEdge(edge{
|
||||
label: search[0],
|
||||
node: &node{
|
||||
leaf: leaf,
|
||||
prefix: search,
|
||||
},
|
||||
})
|
||||
return nil, false
|
||||
}
|
||||
}
|
||||
|
||||
// Delete is used to delete a key, returning the previous
|
||||
// value and if it was deleted
|
||||
func (t *Tree) Delete(s string) (interface{}, bool) {
|
||||
var parent *node
|
||||
var label byte
|
||||
n := t.root
|
||||
search := s
|
||||
for {
|
||||
// Check for key exhaution
|
||||
if len(search) == 0 {
|
||||
if !n.isLeaf() {
|
||||
break
|
||||
}
|
||||
goto DELETE
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
parent = n
|
||||
label = search[0]
|
||||
n = n.getEdge(label)
|
||||
if n == nil {
|
||||
break
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if strings.HasPrefix(search, n.prefix) {
|
||||
search = search[len(n.prefix):]
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
return nil, false
|
||||
|
||||
DELETE:
|
||||
// Delete the leaf
|
||||
leaf := n.leaf
|
||||
n.leaf = nil
|
||||
t.size--
|
||||
|
||||
// Check if we should delete this node from the parent
|
||||
if parent != nil && len(n.edges) == 0 {
|
||||
parent.delEdge(label)
|
||||
}
|
||||
|
||||
// Check if we should merge this node
|
||||
if n != t.root && len(n.edges) == 1 {
|
||||
n.mergeChild()
|
||||
}
|
||||
|
||||
// Check if we should merge the parent's other child
|
||||
if parent != nil && parent != t.root && len(parent.edges) == 1 && !parent.isLeaf() {
|
||||
parent.mergeChild()
|
||||
}
|
||||
|
||||
return leaf.val, true
|
||||
}
|
||||
|
||||
// DeletePrefix is used to delete the subtree under a prefix
|
||||
// Returns how many nodes were deleted
|
||||
// Use this to delete large subtrees efficiently
|
||||
func (t *Tree) DeletePrefix(s string) int {
|
||||
return t.deletePrefix(nil, t.root, s)
|
||||
}
|
||||
|
||||
// delete does a recursive deletion
|
||||
func (t *Tree) deletePrefix(parent, n *node, prefix string) int {
|
||||
// Check for key exhaustion
|
||||
if len(prefix) == 0 {
|
||||
// Remove the leaf node
|
||||
subTreeSize := 0
|
||||
//recursively walk from all edges of the node to be deleted
|
||||
recursiveWalk(n, func(s string, v interface{}) bool {
|
||||
subTreeSize++
|
||||
return false
|
||||
})
|
||||
if n.isLeaf() {
|
||||
n.leaf = nil
|
||||
}
|
||||
n.edges = nil // deletes the entire subtree
|
||||
|
||||
// Check if we should merge the parent's other child
|
||||
if parent != nil && parent != t.root && len(parent.edges) == 1 && !parent.isLeaf() {
|
||||
parent.mergeChild()
|
||||
}
|
||||
t.size -= subTreeSize
|
||||
return subTreeSize
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
label := prefix[0]
|
||||
child := n.getEdge(label)
|
||||
if child == nil || (!strings.HasPrefix(child.prefix, prefix) && !strings.HasPrefix(prefix, child.prefix)) {
|
||||
return 0
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if len(child.prefix) > len(prefix) {
|
||||
prefix = prefix[len(prefix):]
|
||||
} else {
|
||||
prefix = prefix[len(child.prefix):]
|
||||
}
|
||||
return t.deletePrefix(n, child, prefix)
|
||||
}
|
||||
|
||||
func (n *node) mergeChild() {
|
||||
e := n.edges[0]
|
||||
child := e.node
|
||||
n.prefix = n.prefix + child.prefix
|
||||
n.leaf = child.leaf
|
||||
n.edges = child.edges
|
||||
}
|
||||
|
||||
// Get is used to lookup a specific key, returning
|
||||
// the value and if it was found
|
||||
func (t *Tree) Get(s string) (interface{}, bool) {
|
||||
n := t.root
|
||||
search := s
|
||||
for {
|
||||
// Check for key exhaution
|
||||
if len(search) == 0 {
|
||||
if n.isLeaf() {
|
||||
return n.leaf.val, true
|
||||
}
|
||||
break
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
n = n.getEdge(search[0])
|
||||
if n == nil {
|
||||
break
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if strings.HasPrefix(search, n.prefix) {
|
||||
search = search[len(n.prefix):]
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// LongestPrefix is like Get, but instead of an
|
||||
// exact match, it will return the longest prefix match.
|
||||
func (t *Tree) LongestPrefix(s string) (string, interface{}, bool) {
|
||||
var last *leafNode
|
||||
n := t.root
|
||||
search := s
|
||||
for {
|
||||
// Look for a leaf node
|
||||
if n.isLeaf() {
|
||||
last = n.leaf
|
||||
}
|
||||
|
||||
// Check for key exhaution
|
||||
if len(search) == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
n = n.getEdge(search[0])
|
||||
if n == nil {
|
||||
break
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if strings.HasPrefix(search, n.prefix) {
|
||||
search = search[len(n.prefix):]
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
if last != nil {
|
||||
return last.key, last.val, true
|
||||
}
|
||||
return "", nil, false
|
||||
}
|
||||
|
||||
// Minimum is used to return the minimum value in the tree
|
||||
func (t *Tree) Minimum() (string, interface{}, bool) {
|
||||
n := t.root
|
||||
for {
|
||||
if n.isLeaf() {
|
||||
return n.leaf.key, n.leaf.val, true
|
||||
}
|
||||
if len(n.edges) > 0 {
|
||||
n = n.edges[0].node
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
return "", nil, false
|
||||
}
|
||||
|
||||
// Maximum is used to return the maximum value in the tree
|
||||
func (t *Tree) Maximum() (string, interface{}, bool) {
|
||||
n := t.root
|
||||
for {
|
||||
if num := len(n.edges); num > 0 {
|
||||
n = n.edges[num-1].node
|
||||
continue
|
||||
}
|
||||
if n.isLeaf() {
|
||||
return n.leaf.key, n.leaf.val, true
|
||||
}
|
||||
break
|
||||
}
|
||||
return "", nil, false
|
||||
}
|
||||
|
||||
// Walk is used to walk the tree
|
||||
func (t *Tree) Walk(fn WalkFn) {
|
||||
recursiveWalk(t.root, fn)
|
||||
}
|
||||
|
||||
// WalkPrefix is used to walk the tree under a prefix
|
||||
func (t *Tree) WalkPrefix(prefix string, fn WalkFn) {
|
||||
n := t.root
|
||||
search := prefix
|
||||
for {
|
||||
// Check for key exhaution
|
||||
if len(search) == 0 {
|
||||
recursiveWalk(n, fn)
|
||||
return
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
n = n.getEdge(search[0])
|
||||
if n == nil {
|
||||
break
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if strings.HasPrefix(search, n.prefix) {
|
||||
search = search[len(n.prefix):]
|
||||
|
||||
} else if strings.HasPrefix(n.prefix, search) {
|
||||
// Child may be under our search prefix
|
||||
recursiveWalk(n, fn)
|
||||
return
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// WalkPath is used to walk the tree, but only visiting nodes
|
||||
// from the root down to a given leaf. Where WalkPrefix walks
|
||||
// all the entries *under* the given prefix, this walks the
|
||||
// entries *above* the given prefix.
|
||||
func (t *Tree) WalkPath(path string, fn WalkFn) {
|
||||
n := t.root
|
||||
search := path
|
||||
for {
|
||||
// Visit the leaf values if any
|
||||
if n.leaf != nil && fn(n.leaf.key, n.leaf.val) {
|
||||
return
|
||||
}
|
||||
|
||||
// Check for key exhaution
|
||||
if len(search) == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
// Look for an edge
|
||||
n = n.getEdge(search[0])
|
||||
if n == nil {
|
||||
return
|
||||
}
|
||||
|
||||
// Consume the search prefix
|
||||
if strings.HasPrefix(search, n.prefix) {
|
||||
search = search[len(n.prefix):]
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// recursiveWalk is used to do a pre-order walk of a node
|
||||
// recursively. Returns true if the walk should be aborted
|
||||
func recursiveWalk(n *node, fn WalkFn) bool {
|
||||
// Visit the leaf values if any
|
||||
if n.leaf != nil && fn(n.leaf.key, n.leaf.val) {
|
||||
return true
|
||||
}
|
||||
|
||||
// Recurse on the children
|
||||
for _, e := range n.edges {
|
||||
if recursiveWalk(e.node, fn) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// ToMap is used to walk the tree and convert it into a map
|
||||
func (t *Tree) ToMap() map[string]interface{} {
|
||||
out := make(map[string]interface{}, t.size)
|
||||
t.Walk(func(k string, v interface{}) bool {
|
||||
out[k] = v
|
||||
return false
|
||||
})
|
||||
return out
|
||||
}
|
||||
Reference in New Issue
Block a user