vendor: github.com/armon/go-metrics v0.4.1
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
This commit is contained in:
Bjorn Neergaard
parent
1d7ceb2fee
commit
c0fa14e8af
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@ -91,7 +91,7 @@ require (
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require (
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github.com/agext/levenshtein v1.2.3 // indirect
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github.com/armon/circbuf v0.0.0-20190214190532-5111143e8da2 // indirect
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github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
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github.com/armon/go-metrics v0.4.1 // indirect
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github.com/beorn7/perks v1.0.1 // indirect
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github.com/cespare/xxhash/v2 v2.1.2 // indirect
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github.com/cilium/ebpf v0.7.0 // indirect
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15
vendor.sum
15
vendor.sum
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@ -70,6 +70,7 @@ github.com/Azure/go-autorest/logger v0.2.1/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZ
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github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
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github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
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github.com/Graylog2/go-gelf v0.0.0-20191017102106-1550ee647df0 h1:cOjLyhBhe91glgZZNbQUg9BJC57l6BiSKov0Ivv7k0U=
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github.com/Graylog2/go-gelf v0.0.0-20191017102106-1550ee647df0/go.mod h1:fBaQWrftOD5CrVCUfoYGHs4X4VViTuGOXA8WloCjTY0=
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github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
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@ -126,8 +127,9 @@ github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hC
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github.com/armon/circbuf v0.0.0-20190214190532-5111143e8da2 h1:7Ip0wMmLHLRJdrloDxZfhMm0xrLXZS8+COSu2bXmEQs=
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github.com/armon/circbuf v0.0.0-20190214190532-5111143e8da2/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
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github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
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github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I=
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github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
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github.com/armon/go-metrics v0.4.1 h1:hR91U9KYmb6bLBYLQjyM+3j+rcd/UhE+G78SFnF8gJA=
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github.com/armon/go-metrics v0.4.1/go.mod h1:E6amYzXo6aW1tqzoZGT755KkbgrJsSdpwZ+3JqfkOG4=
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github.com/armon/go-radix v0.0.0-20150105235045-e39d623f12e8 h1:XGHqlQXxwVly7mpcroyCGuEaGv/yvtS6r4PSHryDgxU=
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github.com/armon/go-radix v0.0.0-20150105235045-e39d623f12e8/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
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github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
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@ -179,6 +181,8 @@ github.com/cilium/ebpf v0.4.0/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJ
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github.com/cilium/ebpf v0.6.2/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
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github.com/cilium/ebpf v0.7.0 h1:1k/q3ATgxSXRdrmPfH8d7YK0GfqVsEKZAX9dQZvs56k=
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github.com/cilium/ebpf v0.7.0/go.mod h1:/oI2+1shJiTGAMgl6/RgJr36Eo1jzrRcAWbcXO2usCA=
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github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
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github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
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github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
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github.com/cloudflare/cfssl v0.0.0-20180323000720-5d63dbd981b5 h1:PqZ3bA4yzwywivzk7PBQWngJp2/PAS0bWRZerKteicY=
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github.com/cloudflare/cfssl v0.0.0-20180323000720-5d63dbd981b5/go.mod h1:yMWuSON2oQp+43nFtAV/uvKQIFpSPerB57DCt9t8sSA=
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@ -608,6 +612,7 @@ github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FK
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github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
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github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
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github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
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github.com/hashicorp/go-cleanhttp v0.5.0/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
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github.com/hashicorp/go-cleanhttp v0.5.1/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
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github.com/hashicorp/go-hclog v0.9.2/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
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github.com/hashicorp/go-immutable-radix v1.0.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
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@ -623,6 +628,7 @@ github.com/hashicorp/go-multierror v0.0.0-20161216184304-ed905158d874/go.mod h1:
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github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
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github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
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github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
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github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
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github.com/hashicorp/go-retryablehttp v0.7.0/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
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github.com/hashicorp/go-rootcerts v1.0.0/go.mod h1:K6zTfqpRlCUIjkwsN4Z+hiSfzSTQa6eBIzfwKfwNnHU=
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github.com/hashicorp/go-sockaddr v1.0.0/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
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@ -679,6 +685,7 @@ github.com/jsimonetti/rtnetlink v0.0.0-20201009170750-9c6f07d100c1/go.mod h1:hqo
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github.com/jsimonetti/rtnetlink v0.0.0-20201110080708-d2c240429e6c/go.mod h1:huN4d1phzjhlOsNIjFsw2SVRbwIHj3fJDMEU2SDPTmg=
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github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
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github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
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@ -866,8 +873,9 @@ github.com/opencontainers/selinux v1.10.0/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuh
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github.com/opencontainers/selinux v1.10.1 h1:09LIPVRP3uuZGQvgR+SgMSNBd1Eb3vlRbGqQpoHsF8w=
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github.com/opencontainers/selinux v1.10.1/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuho1lHsJxIJ3gGbJI=
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github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
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github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c h1:Lgl0gzECD8GnQ5QCWA8o6BtfL6mDH5rQgM4/fX3avOs=
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github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
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github.com/pascaldekloe/goe v0.1.0 h1:cBOtyMzM9HTpWjXfbbunk26uA6nG3a8n06Wieeh0MwY=
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github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
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github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
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github.com/pelletier/go-toml v1.8.1/go.mod h1:T2/BmBdy8dvIRq1a/8aqjN41wvWlN4lrapLU/GW4pbc=
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github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
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@ -892,6 +900,7 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
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github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
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github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
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github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
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github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
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github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
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github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
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github.com/prometheus/client_golang v1.12.1 h1:ZiaPsmm9uiBeaSMRznKsCDNtPCS0T3JVDGF+06gjBzk=
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@ -907,6 +916,7 @@ github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7q
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github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
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github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
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github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc=
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github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
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github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
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github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
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github.com/prometheus/common v0.30.0/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
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@ -1014,6 +1024,7 @@ github.com/tonistiigi/go-archvariant v1.0.0 h1:5LC1eDWiBNflnTF1prCiX09yfNHIxDC/a
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github.com/tonistiigi/go-archvariant v1.0.0/go.mod h1:TxFmO5VS6vMq2kvs3ht04iPXtu2rUT/erOnGFYfk5Ho=
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github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea h1:SXhTLE6pb6eld/v/cCndK0AMpt1wiVFb/YYmqB3/QG0=
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github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea/go.mod h1:WPnis/6cRcDZSUvVmezrxJPkiO87ThFYsoUiMwWNDJk=
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github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
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github.com/tv42/httpunix v0.0.0-20191220191345-2ba4b9c3382c/go.mod h1:hzIxponao9Kjc7aWznkXaL4U4TWaDSs8zcsY4Ka08nM=
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github.com/u-root/uio v0.0.0-20210528114334-82958018845c/go.mod h1:LpEX5FO/cB+WF4TYGY1V5qktpaZLkKkSegbr0V4eYXA=
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github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
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@ -22,3 +22,5 @@ _testmain.go
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*.exe
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/metrics.out
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.idea
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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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@ -10,6 +10,8 @@ import (
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"time"
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)
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var spaceReplacer = strings.NewReplacer(" ", "_")
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// InmemSink provides a MetricSink that does in-memory aggregation
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// without sending metrics over a network. It can be embedded within
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// an application to provide profiling information.
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@ -53,6 +55,10 @@ type IntervalMetrics struct {
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// Samples maps the key to an AggregateSample,
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// which has the rolled up view of a sample
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Samples map[string]SampledValue
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// done is closed when this interval has ended, and a new IntervalMetrics
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// has been created to receive any future metrics.
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done chan struct{}
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}
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// NewIntervalMetrics creates a new IntervalMetrics for a given interval
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@ -63,6 +69,7 @@ func NewIntervalMetrics(intv time.Time) *IntervalMetrics {
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Points: make(map[string][]float32),
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Counters: make(map[string]SampledValue),
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Samples: make(map[string]SampledValue),
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done: make(chan struct{}),
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}
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}
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@ -243,6 +250,8 @@ func (i *InmemSink) Data() []*IntervalMetrics {
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copyCurrent := intervals[n-1]
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current.RLock()
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*copyCurrent = *current
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// RWMutex is not safe to copy, so create a new instance on the copy
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copyCurrent.RWMutex = sync.RWMutex{}
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copyCurrent.Gauges = make(map[string]GaugeValue, len(current.Gauges))
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for k, v := range current.Gauges {
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@ -255,44 +264,50 @@ func (i *InmemSink) Data() []*IntervalMetrics {
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}
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copyCurrent.Counters = make(map[string]SampledValue, len(current.Counters))
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for k, v := range current.Counters {
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copyCurrent.Counters[k] = v
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copyCurrent.Counters[k] = v.deepCopy()
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}
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copyCurrent.Samples = make(map[string]SampledValue, len(current.Samples))
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for k, v := range current.Samples {
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copyCurrent.Samples[k] = v
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copyCurrent.Samples[k] = v.deepCopy()
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}
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current.RUnlock()
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return intervals
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}
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func (i *InmemSink) getExistingInterval(intv time.Time) *IntervalMetrics {
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i.intervalLock.RLock()
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defer i.intervalLock.RUnlock()
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// getInterval returns the current interval. A new interval is created if no
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// previous interval exists, or if the current time is beyond the window for the
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// current interval.
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func (i *InmemSink) getInterval() *IntervalMetrics {
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intv := time.Now().Truncate(i.interval)
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// Attempt to return the existing interval first, because it only requires
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// a read lock.
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i.intervalLock.RLock()
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n := len(i.intervals)
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if n > 0 && i.intervals[n-1].Interval == intv {
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defer i.intervalLock.RUnlock()
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return i.intervals[n-1]
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}
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return nil
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}
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i.intervalLock.RUnlock()
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func (i *InmemSink) createInterval(intv time.Time) *IntervalMetrics {
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i.intervalLock.Lock()
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defer i.intervalLock.Unlock()
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||||
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// Check for an existing interval
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n := len(i.intervals)
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// Re-check for an existing interval now that the lock is re-acquired.
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||||
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++
|
||||
if n > 0 {
|
||||
close(i.intervals[n-1].done)
|
||||
}
|
||||
|
||||
// Truncate the intervals if they are too long
|
||||
n++
|
||||
// Prune old intervals if the count exceeds the max.
|
||||
if n >= i.maxIntervals {
|
||||
copy(i.intervals[0:], i.intervals[n-i.maxIntervals:])
|
||||
i.intervals = i.intervals[:i.maxIntervals]
|
||||
|
|
@ -300,48 +315,24 @@ func (i *InmemSink) createInterval(intv time.Time) *IntervalMetrics {
|
|||
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{}
|
||||
replacer := strings.NewReplacer(" ", "_")
|
||||
|
||||
if len(parts) > 0 {
|
||||
replacer.WriteString(buf, parts[0])
|
||||
}
|
||||
for _, part := range parts[1:] {
|
||||
replacer.WriteString(buf, ".")
|
||||
replacer.WriteString(buf, part)
|
||||
}
|
||||
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) {
|
||||
buf := &bytes.Buffer{}
|
||||
replacer := strings.NewReplacer(" ", "_")
|
||||
|
||||
if len(parts) > 0 {
|
||||
replacer.WriteString(buf, parts[0])
|
||||
}
|
||||
for _, part := range parts[1:] {
|
||||
replacer.WriteString(buf, ".")
|
||||
replacer.WriteString(buf, part)
|
||||
}
|
||||
|
||||
key := buf.String()
|
||||
key := i.flattenKey(parts)
|
||||
buf := bytes.NewBufferString(key)
|
||||
|
||||
for _, label := range labels {
|
||||
replacer.WriteString(buf, fmt.Sprintf(";%s=%s", label.Name, label.Value))
|
||||
spaceReplacer.WriteString(buf, fmt.Sprintf(";%s=%s", label.Name, label.Value))
|
||||
}
|
||||
|
||||
return buf.String(), key
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
package metrics
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"net/http"
|
||||
"sort"
|
||||
|
|
@ -41,6 +42,16 @@ type SampledValue struct {
|
|||
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()
|
||||
|
|
@ -52,12 +63,19 @@ func (i *InmemSink) DisplayMetrics(resp http.ResponseWriter, req *http.Request)
|
|||
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 = i.intervals[0]
|
||||
interval = data[0]
|
||||
default:
|
||||
// Show the most recent finished interval if we have one
|
||||
interval = i.intervals[n-2]
|
||||
interval = data[n-2]
|
||||
}
|
||||
|
||||
return newMetricSummaryFromInterval(interval), nil
|
||||
}
|
||||
|
||||
func newMetricSummaryFromInterval(interval *IntervalMetrics) MetricsSummary {
|
||||
interval.RLock()
|
||||
defer interval.RUnlock()
|
||||
|
||||
summary := MetricsSummary{
|
||||
Timestamp: interval.Interval.Round(time.Second).UTC().String(),
|
||||
Gauges: make([]GaugeValue, 0, len(interval.Gauges)),
|
||||
|
|
@ -90,7 +108,7 @@ func (i *InmemSink) DisplayMetrics(resp http.ResponseWriter, req *http.Request)
|
|||
summary.Counters = formatSamples(interval.Counters)
|
||||
summary.Samples = formatSamples(interval.Samples)
|
||||
|
||||
return summary, nil
|
||||
return summary
|
||||
}
|
||||
|
||||
func formatSamples(source map[string]SampledValue) []SampledValue {
|
||||
|
|
@ -116,3 +134,29 @@ func formatSamples(source map[string]SampledValue) []SampledValue {
|
|||
|
||||
return output
|
||||
}
|
||||
|
||||
type Encoder interface {
|
||||
Encode(interface{}) error
|
||||
}
|
||||
|
||||
// Stream writes metrics using encoder.Encode each time an interval ends. Runs
|
||||
// until the request context is cancelled, or the encoder returns an error.
|
||||
// The caller is responsible for logging any errors from encoder.
|
||||
func (i *InmemSink) Stream(ctx context.Context, encoder Encoder) {
|
||||
interval := i.getInterval()
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-interval.done:
|
||||
summary := newMetricSummaryFromInterval(interval)
|
||||
if err := encoder.Encode(summary); err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// update interval to the next one
|
||||
interval = i.getInterval()
|
||||
case <-ctx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@ import (
|
|||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/hashicorp/go-immutable-radix"
|
||||
iradix "github.com/hashicorp/go-immutable-radix"
|
||||
)
|
||||
|
||||
type Label struct {
|
||||
|
|
@ -172,6 +172,12 @@ func (m *Metrics) UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabe
|
|||
}
|
||||
}
|
||||
|
||||
func (m *Metrics) Shutdown() {
|
||||
if ss, ok := m.sink.(ShutdownSink); ok {
|
||||
ss.Shutdown()
|
||||
}
|
||||
}
|
||||
|
||||
// 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 {
|
||||
|
|
@ -197,7 +203,7 @@ func (m *Metrics) filterLabels(labels []Label) []Label {
|
|||
if labels == nil {
|
||||
return nil
|
||||
}
|
||||
toReturn := labels[:0]
|
||||
toReturn := []Label{}
|
||||
for _, label := range labels {
|
||||
if m.labelIsAllowed(&label) {
|
||||
toReturn = append(toReturn, label)
|
||||
|
|
@ -228,12 +234,12 @@ func (m *Metrics) allowMetric(key []string, labels []Label) (bool, []Label) {
|
|||
func (m *Metrics) collectStats() {
|
||||
for {
|
||||
time.Sleep(m.ProfileInterval)
|
||||
m.emitRuntimeStats()
|
||||
m.EmitRuntimeStats()
|
||||
}
|
||||
}
|
||||
|
||||
// Emits various runtime statsitics
|
||||
func (m *Metrics) emitRuntimeStats() {
|
||||
func (m *Metrics) EmitRuntimeStats() {
|
||||
// Export number of Goroutines
|
||||
numRoutines := runtime.NumGoroutine()
|
||||
m.SetGauge([]string{"runtime", "num_goroutines"}, float32(numRoutines))
|
||||
|
|
@ -269,10 +275,25 @@ func (m *Metrics) emitRuntimeStats() {
|
|||
m.lastNumGC = num
|
||||
}
|
||||
|
||||
// Inserts a string value at an index into the slice
|
||||
// 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 {
|
||||
s = append(s, "")
|
||||
copy(s[i+1:], s[i:])
|
||||
s[i] = v
|
||||
return s
|
||||
// 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
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,6 +24,15 @@ type MetricSink interface {
|
|||
AddSampleWithLabels(key []string, val float32, labels []Label)
|
||||
}
|
||||
|
||||
type ShutdownSink interface {
|
||||
MetricSink
|
||||
|
||||
// Shutdown the metric sink, flush metrics to storage, and cleanup resources.
|
||||
// Called immediately prior to application exit. Implementations must block
|
||||
// until metrics are flushed to storage.
|
||||
Shutdown()
|
||||
}
|
||||
|
||||
// BlackholeSink is used to just blackhole messages
|
||||
type BlackholeSink struct{}
|
||||
|
||||
|
|
@ -74,6 +83,14 @@ func (fh FanoutSink) AddSampleWithLabels(key []string, val float32, labels []Lab
|
|||
}
|
||||
}
|
||||
|
||||
func (fh FanoutSink) Shutdown() {
|
||||
for _, s := range fh {
|
||||
if ss, ok := s.(ShutdownSink); ok {
|
||||
ss.Shutdown()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// sinkURLFactoryFunc is an generic interface around the *SinkFromURL() function provided
|
||||
// by each sink type
|
||||
type sinkURLFactoryFunc func(*url.URL) (MetricSink, error)
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ import (
|
|||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/hashicorp/go-immutable-radix"
|
||||
iradix "github.com/hashicorp/go-immutable-radix"
|
||||
)
|
||||
|
||||
// Config is used to configure metrics settings
|
||||
|
|
@ -48,6 +48,11 @@ func init() {
|
|||
globalMetrics.Store(&Metrics{sink: &BlackholeSink{}})
|
||||
}
|
||||
|
||||
// Default returns the shared global metrics instance.
|
||||
func Default() *Metrics {
|
||||
return globalMetrics.Load().(*Metrics)
|
||||
}
|
||||
|
||||
// DefaultConfig provides a sane default configuration
|
||||
func DefaultConfig(serviceName string) *Config {
|
||||
c := &Config{
|
||||
|
|
@ -139,3 +144,15 @@ func UpdateFilter(allow, block []string) {
|
|||
func UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabels []string) {
|
||||
globalMetrics.Load().(*Metrics).UpdateFilterAndLabels(allow, block, allowedLabels, blockedLabels)
|
||||
}
|
||||
|
||||
// Shutdown disables metric collection, then blocks while attempting to flush metrics to storage.
|
||||
// WARNING: Not all MetricSink backends support this functionality, and calling this will cause them to leak resources.
|
||||
// This is intended for use immediately prior to application exit.
|
||||
func Shutdown() {
|
||||
m := globalMetrics.Load().(*Metrics)
|
||||
// Swap whatever MetricSink is currently active with a BlackholeSink. Callers must not have a
|
||||
// reason to expect that calls to the library will successfully collect metrics after Shutdown
|
||||
// has been called.
|
||||
globalMetrics.Store(&Metrics{sink: &BlackholeSink{}})
|
||||
m.Shutdown()
|
||||
}
|
||||
|
|
|
|||
|
|
@ -62,8 +62,8 @@ github.com/agext/levenshtein
|
|||
# github.com/armon/circbuf v0.0.0-20190214190532-5111143e8da2
|
||||
## explicit
|
||||
github.com/armon/circbuf
|
||||
# github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da
|
||||
## explicit
|
||||
# github.com/armon/go-metrics v0.4.1
|
||||
## explicit; go 1.12
|
||||
github.com/armon/go-metrics
|
||||
# github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310 => github.com/armon/go-radix v0.0.0-20150105235045-e39d623f12e8
|
||||
## explicit
|
||||
|
|
|
|||
Loading…
Reference in New Issue