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Commit b7aa6fed by Carl Bergquist Committed by GitHub
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Instrumentation: Add examplars for request histograms (#29357) 

Signed-off-by: bergquist <carl.bergquist@gmail.com>
parent fb622650
Showing with 53 additions and 28 deletions
go.mod
......@@ -62,9 +62,9 @@ require (
github.com/opentracing/opentracing-go v1.2.0
github.com/patrickmn/go-cache v2.1.0+incompatible
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.7.1
github.com/prometheus/client_golang v1.8.0
github.com/prometheus/client_model v0.2.0
github.com/prometheus/common v0.10.0
github.com/prometheus/common v0.14.0
github.com/rainycape/unidecode v0.0.0-20150907023854-cb7f23ec59be // indirect
github.com/robfig/cron v0.0.0-20180505203441-b41be1df6967
github.com/robfig/cron/v3 v3.0.0
......@@ -77,6 +77,7 @@ require (
github.com/uber/jaeger-client-go v2.25.0+incompatible
github.com/unknwon/com v1.0.1
github.com/urfave/cli/v2 v2.1.1
github.com/weaveworks/common v0.0.0-20201119133501-0619918236ec
github.com/xorcare/pointer v1.1.0
github.com/yudai/gojsondiff v1.0.0
golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
......
go.sum
......@@ -329,6 +329,8 @@ github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
github.com/fatih/structtag v1.1.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94=
github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/flosch/pongo2 v0.0.0-20190707114632-bbf5a6c351f4/go.mod h1:T9YF2M40nIgbVgp3rreNmTged+9HrbNTIQf1PsaIiTA=
github.com/fluent/fluent-bit-go v0.0.0-20190925192703-ea13c021720c/go.mod h1:WQX+afhrekY9rGK+WT4xvKSlzmia9gDoLYu4GGYGASQ=
github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
......@@ -489,6 +491,7 @@ github.com/gocql/gocql v0.0.0-20200121121104-95d072f1b5bb/go.mod h1:DL0ekTmBSTdl
github.com/gocql/gocql v0.0.0-20200526081602-cd04bd7f22a7/go.mod h1:DL0ekTmBSTdlNF25Orwt/JMzqIq3EJ4MVa/J/uK64OY=
github.com/godbus/dbus v0.0.0-20190402143921-271e53dc4968/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
github.com/gofrs/flock v0.7.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
github.com/gogo/googleapis v1.1.0 h1:kFkMAZBNAn4j7K0GiZr8cRYzejq68VbheufiV3YuyFI=
github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
github.com/gogo/protobuf v1.0.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
......@@ -499,6 +502,7 @@ github.com/gogo/protobuf v1.2.2-0.20190730201129-28a6bbf47e48/go.mod h1:SlYgWuQ5
github.com/gogo/protobuf v1.3.0/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/status v1.0.3 h1:WkVBY59mw7qUNTr/bLwO7J2vesJ0rQ2C3tMXrTd3w5M=
github.com/gogo/status v1.0.3/go.mod h1:SavQ51ycCLnc7dGyJxp8YAmudx8xqiVrRf+6IXRsugc=
github.com/golang-migrate/migrate/v4 v4.7.0/go.mod h1:Qvut3N4xKWjoH3sokBccML6WyHSnggXm/DvMMnTsQIc=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY=
......@@ -610,6 +614,7 @@ github.com/gopherjs/gopherjs v0.0.0-20191106031601-ce3c9ade29de/go.mod h1:wJfORR
github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
github.com/gorilla/mux v1.7.1/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw=
github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
github.com/gorilla/websocket v0.0.0-20170926233335-4201258b820c/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
......@@ -803,6 +808,8 @@ github.com/klauspost/pgzip v1.0.2-0.20170402124221-0bf5dcad4ada/go.mod h1:Ch1tH6
github.com/knq/sysutil v0.0.0-20191005231841-15668db23d08/go.mod h1:dFWs1zEqDjFtnBXsd1vPOZaLsESovai349994nHx3e0=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8=
github.com/konsorten/go-windows-terminal-sequences v1.0.3/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/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
......@@ -980,6 +987,7 @@ github.com/opencontainers/image-spec v1.0.1/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zM
github.com/opentracing-contrib/go-grpc v0.0.0-20180928155321-4b5a12d3ff02/go.mod h1:JNdpVEzCpXBgIiv4ds+TzhN1hrtxq6ClLrTlT9OQRSc=
github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492/go.mod h1:Ngi6UdF0k5OKD5t5wlmGhe/EDKPoUM3BXZSSfIuJbis=
github.com/opentracing-contrib/go-stdlib v0.0.0-20190519235532-cf7a6c988dc9/go.mod h1:PLldrQSroqzH70Xl+1DQcGnefIbqsKR7UDaiux3zV+w=
github.com/opentracing-contrib/go-stdlib v1.0.0 h1:TBS7YuVotp8myLon4Pv7BtCBzOTo1DeZCld0Z63mW2w=
github.com/opentracing-contrib/go-stdlib v1.0.0/go.mod h1:qtI1ogk+2JhVPIXVc6q+NHziSmy2W5GbdQZFUHADCBU=
github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
......@@ -1039,6 +1047,8 @@ github.com/prometheus/client_golang v1.4.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3O
github.com/prometheus/client_golang v1.6.0/go.mod h1:ZLOG9ck3JLRdB5MgO8f+lLTe83AXG6ro35rLTxvnIl4=
github.com/prometheus/client_golang v1.7.1 h1:NTGy1Ja9pByO+xAeH/qiWnLrKtr3hJPNjaVUwnjpdpA=
github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
github.com/prometheus/client_golang v1.8.0 h1:zvJNkoCFAnYFNC24FV8nW4JdRJ3GIFcLbg65lL/JDcw=
github.com/prometheus/client_golang v1.8.0/go.mod h1:O9VU6huf47PktckDQfMTX0Y8tY0/7TSWwj+ITvv0TnM=
github.com/prometheus/client_model v0.0.0-20170216185247-6f3806018612/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190115171406-56726106282f/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
......@@ -1057,6 +1067,8 @@ github.com/prometheus/common v0.8.0/go.mod h1:PC/OgXc+UN7B4ALwvn1yzVZmVwvhXp5Jsb
github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
github.com/prometheus/common v0.10.0 h1:RyRA7RzGXQZiW+tGMr7sxa85G1z0yOpM1qq5c8lNawc=
github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
github.com/prometheus/common v0.14.0 h1:RHRyE8UocrbjU+6UvRzwi6HjiDfxrrBU91TtbKzkGp4=
github.com/prometheus/common v0.14.0/go.mod h1:U+gB1OBLb1lF3O42bTCL+FK18tX9Oar16Clt/msog/s=
github.com/prometheus/node_exporter v1.0.0-rc.0.0.20200428091818-01054558c289/go.mod h1:FGbBv5OPKjch+jNUJmEQpMZytIdyW0NdBtWFcfSKusc=
github.com/prometheus/procfs v0.0.0-20180612222113-7d6f385de8be/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
......@@ -1071,6 +1083,8 @@ github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+Gx
github.com/prometheus/procfs v0.0.11/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/procfs v0.1.3 h1:F0+tqvhOksq22sc6iCHF5WGlWjdwj92p0udFh1VFBS8=
github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/prometheus v0.0.0-20180315085919-58e2a31db8de/go.mod h1:oAIUtOny2rjMX0OWN5vPR5/q/twIROJvdqnQKDdil/s=
github.com/prometheus/prometheus v0.0.0-20190818123050-43acd0e2e93f/go.mod h1:rMTlmxGCvukf2KMu3fClMDKLLoJ5hl61MhcJ7xKakf0=
github.com/prometheus/prometheus v1.8.2-0.20200107122003-4708915ac6ef/go.mod h1:7U90zPoLkWjEIQcy/rweQla82OCTUzxVHE51G3OhJbI=
......@@ -1135,7 +1149,10 @@ github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
github.com/sirupsen/logrus v1.4.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.5.0 h1:1N5EYkVAPEywqZRJd7cwnRtCb6xJx7NH3T3WUTF980Q=
github.com/sirupsen/logrus v1.5.0/go.mod h1:+F7Ogzej0PZc/94MaYx/nvG9jOFMD2osvC3s+Squfpo=
github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/assertions v1.0.1 h1:voD4ITNjPL5jjBfgR/r8fPIIBrliWrWHeiJApdr3r4w=
......@@ -1194,6 +1211,7 @@ github.com/ua-parser/uap-go v0.0.0-20190826212731-daf92ba38329 h1:VBsKFh4W1JEMz3
github.com/ua-parser/uap-go v0.0.0-20190826212731-daf92ba38329/go.mod h1:OBcG9bn7sHtXgarhUEb3OfCnNsgtGnkVf41ilSZ3K3E=
github.com/uber/jaeger-client-go v2.15.0+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
github.com/uber/jaeger-client-go v2.20.1+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
github.com/uber/jaeger-client-go v2.22.1+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
github.com/uber/jaeger-client-go v2.23.1+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
github.com/uber/jaeger-client-go v2.24.0+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
github.com/uber/jaeger-client-go v2.25.0+incompatible h1:IxcNZ7WRY1Y3G4poYlx24szfsn/3LvK9QHCq9oQw8+U=
......@@ -1222,6 +1240,9 @@ github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV
github.com/vektah/gqlparser v1.1.2/go.mod h1:1ycwN7Ij5njmMkPPAOaRFY4rET2Enx7IkVv3vaXspKw=
github.com/weaveworks/common v0.0.0-20200206153930-760e36ae819a/go.mod h1:6enWAqfQBFrE8X/XdJwZr8IKgh1chStuFR0mjU/UOUw=
github.com/weaveworks/common v0.0.0-20200625145055-4b1847531bc9/go.mod h1:c98fKi5B9u8OsKGiWHLRKus6ToQ1Tubeow44ECO1uxY=
github.com/weaveworks/common v0.0.0-20201119133501-0619918236ec h1:5JmevdpzK10Z2ua0VDToj7Kg2+/t0FzdYBjsurYRE8k=
github.com/weaveworks/common v0.0.0-20201119133501-0619918236ec/go.mod h1:ykzWac1LtVfOxdCK+jD754at1Ws9dKCwFeUzkFBffPs=
github.com/weaveworks/promrus v1.2.0 h1:jOLf6pe6/vss4qGHjXmGz4oDJQA+AOCqEL3FvvZGz7M=
github.com/weaveworks/promrus v1.2.0/go.mod h1:SaE82+OJ91yqjrE1rsvBWVzNZKcHYFtMUyS1+Ogs/KA=
github.com/willf/bitset v1.1.3/go.mod h1:RjeCKbqT1RxIR/KWY6phxZiaY1IyutSBfGjNPySAYV4=
github.com/xanzy/go-gitlab v0.15.0/go.mod h1:8zdQa/ri1dfn8eS3Ir1SyfvOKlw7WBJ8DVThkpGiXrs=
......@@ -1516,6 +1537,7 @@ golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200828194041-157a740278f4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201022201747-fb209a7c41cd h1:WgqgiQvkiZWz7XLhphjt2GI2GcGCTIZs9jqXMWmH+oc=
golang.org/x/sys v0.0.0-20201022201747-fb209a7c41cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
......
pkg/api/http_server.go
......@@ -367,7 +367,7 @@ func (hs *HTTPServer) metricsEndpoint(ctx *macaron.Context) {
}
promhttp.
HandlerFor(prometheus.DefaultGatherer, promhttp.HandlerOpts{}).
HandlerFor(prometheus.DefaultGatherer, promhttp.HandlerOpts{EnableOpenMetrics: true}).
ServeHTTP(ctx.Resp, ctx.Req.Request)
}
......
pkg/middleware/logger.go
......@@ -16,15 +16,13 @@
package middleware
import (
"context"
"net/http"
"time"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
opentracing "github.com/opentracing/opentracing-go"
"github.com/prometheus/client_golang/prometheus"
"github.com/uber/jaeger-client-go"
cw "github.com/weaveworks/common/middleware"
"gopkg.in/macaron.v1"
)
......@@ -63,7 +61,7 @@ func Logger() macaron.Handler {
"referer", req.Referer(),
}
traceID, exist := extractTraceID(ctxTyped.Req.Request.Context())
traceID, exist := cw.ExtractTraceID(ctxTyped.Req.Request.Context())
if exist {
logParams = append(logParams, "traceID", traceID)
}
......@@ -76,16 +74,3 @@ func Logger() macaron.Handler {
}
}
}
func extractTraceID(ctx context.Context) (string, bool) {
sp := opentracing.SpanFromContext(ctx)
if sp == nil {
return "", false
}
sctx, ok := sp.Context().(jaeger.SpanContext)
if !ok {
return "", false
}
return sctx.TraceID().String(), true
}
pkg/middleware/request_metrics.go
......@@ -9,12 +9,17 @@ import (
"github.com/grafana/grafana/pkg/infra/metrics"
"github.com/grafana/grafana/pkg/setting"
"github.com/prometheus/client_golang/prometheus"
cw "github.com/weaveworks/common/middleware"
"gopkg.in/macaron.v1"
)
var (
httpRequestsInFlight prometheus.Gauge
httpRequestDurationHistogram *prometheus.HistogramVec
// DefBuckets are histogram buckets for the response time (in seconds)
// of a network service, including one that is responding very slowly.
defBuckets = []float64{.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5}
)
func init() {
......@@ -30,9 +35,9 @@ func init() {
Namespace: "grafana",
Name: "http_request_duration_seconds",
Help: "Histogram of latencies for HTTP requests.",
Buckets: []float64{.1, .2, .4, 1, 3, 8, 20, 60, 120},
Buckets: defBuckets,
},
[]string{"handler"},
[]string{"handler", "code", "method"},
)
prometheus.MustRegister(httpRequestsInFlight, httpRequestDurationHistogram)
......@@ -52,14 +57,26 @@ func RequestMetrics(cfg *setting.Cfg) func(handler string) macaron.Handler {
code := sanitizeCode(status)
method := sanitizeMethod(req.Method)
metrics.MHttpRequestTotal.WithLabelValues(handler, code, method).Inc()
duration := time.Since(now).Nanoseconds() / int64(time.Millisecond)
// enable histogram and disable summaries for http requests.
// enable histogram and disable summaries + counters for http requests.
if cfg.IsHTTPRequestHistogramEnabled() {
httpRequestDurationHistogram.WithLabelValues(handler).Observe(float64(duration))
// avoiding the sanitize functions for in the new instrumentation
// since they dont make much sense. We should remove them later.
histogram := httpRequestDurationHistogram.
WithLabelValues(handler, strconv.Itoa(rw.Status()), req.Method)
if traceID, ok := cw.ExtractSampledTraceID(c.Req.Context()); ok {
// Need to type-convert the Observer to an
// ExemplarObserver. This will always work for a
// HistogramVec.
histogram.(prometheus.ExemplarObserver).ObserveWithExemplar(
time.Since(now).Seconds(), prometheus.Labels{"traceID": traceID},
)
return
}
histogram.Observe(time.Since(now).Seconds())
} else {
duration := time.Since(now).Nanoseconds() / int64(time.Millisecond)
metrics.MHttpRequestTotal.WithLabelValues(handler, code, method).Inc()
metrics.MHttpRequestSummary.WithLabelValues(handler, code, method).Observe(float64(duration))
}
......
pkg/server/server.go
......@@ -273,7 +273,7 @@ func (s *Server) buildServiceGraph(services []*registry.Descriptor) error {
objs := []interface{}{
bus.GetBus(),
s.cfg,
routing.NewRouteRegister(middleware.RequestMetrics(s.cfg), middleware.RequestTracing),
routing.NewRouteRegister(middleware.RequestTracing, middleware.RequestMetrics(s.cfg)),
localcache.New(5*time.Minute, 10*time.Minute),
s,
}
......
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