From c845d1d93d977e55b9646e2597acc919110fbb2c Mon Sep 17 00:00:00 2001 From: John Guo Date: Thu, 27 Jan 2022 15:15:55 +0800 Subject: [PATCH] add Weight/RoundRobin/LeastConnection selector for package gsel; improve package balancer --- contrib/balancer/balancer.go | 42 ++++++- contrib/balancer/balancer_builder.go | 22 +++- contrib/balancer/balancer_node.go | 6 + contrib/balancer/balancer_picker.go | 9 ++ contrib/balancer/balancer_test.go | 6 + contrib/balancer/go.mod | 1 + contrib/balancer/go.sum | 121 +-------------------- contrib/registry/etcd/etcd.go | 8 +- contrib/registry/etcd/etcd_discovery.go | 6 + contrib/registry/etcd/etcd_registry.go | 6 + contrib/registry/etcd/etcd_watcher.go | 6 + contrib/resolver/resolver.go | 9 +- contrib/resolver/resolver_builder.go | 9 +- contrib/resolver/resolver_resolver.go | 17 ++- example/go.mod | 2 + example/rawgrpc/greeter_client/main.go | 17 ++- net/gsel/gsel.go | 29 ++++- net/gsel/gsel_md.go | 34 ------ net/gsel/gsel_selector_least_connection.go | 69 ++++++++++++ net/gsel/gsel_selector_random.go | 25 +++-- net/gsel/gsel_selector_round_robin.go | 41 +++++++ net/gsel/gsel_selector_weight.go | 55 ++++++++++ net/gsvc/gsvc.go | 18 +-- net/gsvc/gsvc_metadata.go | 24 ++++ net/gsvc/gsvc_search.go | 1 + net/gsvc/gsvc_service.go | 4 +- 26 files changed, 398 insertions(+), 189 deletions(-) delete mode 100644 net/gsel/gsel_md.go create mode 100644 net/gsel/gsel_selector_least_connection.go create mode 100644 net/gsel/gsel_selector_round_robin.go create mode 100644 net/gsel/gsel_selector_weight.go create mode 100644 net/gsvc/gsvc_metadata.go diff --git a/contrib/balancer/balancer.go b/contrib/balancer/balancer.go index 01b5ffc60..85c16d002 100644 --- a/contrib/balancer/balancer.go +++ b/contrib/balancer/balancer.go @@ -1,15 +1,32 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +// Package balancer defines APIs for load balancing in gRPC. package balancer import ( + "fmt" + "github.com/gogf/gf/v2/net/gsel" + "google.golang.org/grpc" "google.golang.org/grpc/balancer" "google.golang.org/grpc/balancer/base" ) const ( - RawSvcKeyInSubConnInfo = `RawService` + rawSvcKeyInSubConnInfo = `RawService` ) +func init() { + Register(gsel.SelectorRandom, gsel.NewSelectorRandom()) + Register(gsel.SelectorWeight, gsel.NewSelectorWeight()) + Register(gsel.SelectorRoundRobin, gsel.NewSelectorRoundRobin()) + Register(gsel.SelectorLeastConnection, gsel.NewSelectorLeastConnection()) +} + func Register(name string, selector gsel.Selector) { balancer.Register(base.NewBalancerBuilder( name, @@ -17,3 +34,26 @@ func Register(name string, selector gsel.Selector) { base.Config{HealthCheck: true}, )) } + +func WithRandom() grpc.DialOption { + return doWithSelectorName(gsel.SelectorRandom) +} + +func WithWeight() grpc.DialOption { + return doWithSelectorName(gsel.SelectorWeight) +} + +func WithRoundRobin() grpc.DialOption { + return doWithSelectorName(gsel.SelectorRoundRobin) +} + +func WithLeastConnection() grpc.DialOption { + return doWithSelectorName(gsel.SelectorLeastConnection) +} + +func doWithSelectorName(name string) grpc.DialOption { + return grpc.WithDefaultServiceConfig(fmt.Sprintf( + `{"loadBalancingPolicy": "%s"}`, + name, + )) +} diff --git a/contrib/balancer/balancer_builder.go b/contrib/balancer/balancer_builder.go index bf33cb184..0b02a4349 100644 --- a/contrib/balancer/balancer_builder.go +++ b/contrib/balancer/balancer_builder.go @@ -1,8 +1,16 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package balancer import ( + "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/net/gsel" "github.com/gogf/gf/v2/net/gsvc" + "golang.org/x/net/context" "google.golang.org/grpc/balancer" "google.golang.org/grpc/balancer/base" ) @@ -18,9 +26,16 @@ func (b *Builder) Build(info base.PickerBuildInfo) balancer.Picker { if len(info.ReadySCs) == 0 { return base.NewErrPicker(balancer.ErrNoSubConnAvailable) } - nodes := make([]gsel.Node, len(info.ReadySCs)) + var ( + ctx = context.Background() + nodes = make([]gsel.Node, 0) + ) for conn, subConnInfo := range info.ReadySCs { - svc, _ := subConnInfo.Address.Attributes.Value(RawSvcKeyInSubConnInfo).(*gsvc.Service) + svc, _ := subConnInfo.Address.Attributes.Value(rawSvcKeyInSubConnInfo).(*gsvc.Service) + if svc == nil { + g.Log().Noticef(ctx, `empty service read from: %+v`, subConnInfo.Address) + continue + } nodes = append(nodes, &Node{ service: svc, conn: conn, @@ -29,8 +44,7 @@ func (b *Builder) Build(info base.PickerBuildInfo) balancer.Picker { p := &Picker{ selector: b.selector, } - err := p.selector.Update(nodes) - if err != nil { + if err := p.selector.Update(nodes); err != nil { panic(err) } return p diff --git a/contrib/balancer/balancer_node.go b/contrib/balancer/balancer_node.go index d4a2d93f1..f5ccf36c4 100644 --- a/contrib/balancer/balancer_node.go +++ b/contrib/balancer/balancer_node.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package balancer import ( diff --git a/contrib/balancer/balancer_picker.go b/contrib/balancer/balancer_picker.go index 9776cfda5..c778387bc 100644 --- a/contrib/balancer/balancer_picker.go +++ b/contrib/balancer/balancer_picker.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package balancer import ( @@ -42,6 +48,9 @@ func (p *Picker) Pick(info balancer.PickInfo) (balancer.PickResult, error) { return balancer.PickResult{ SubConn: node.(*Node).conn, Done: func(di balancer.DoneInfo) { + if done == nil { + return + } done(info.Ctx, gsel.DoneInfo{ Err: di.Err, Trailer: di.Trailer, diff --git a/contrib/balancer/balancer_test.go b/contrib/balancer/balancer_test.go index 80268ee28..1c4c6672b 100644 --- a/contrib/balancer/balancer_test.go +++ b/contrib/balancer/balancer_test.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package balancer_test import ( diff --git a/contrib/balancer/go.mod b/contrib/balancer/go.mod index be0e77a45..6659e228e 100644 --- a/contrib/balancer/go.mod +++ b/contrib/balancer/go.mod @@ -4,6 +4,7 @@ go 1.15 require ( github.com/gogf/gf/v2 v2.0.0-rc2 + golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 google.golang.org/grpc v1.43.0 ) diff --git a/contrib/balancer/go.sum b/contrib/balancer/go.sum index 11da44d80..efc705595 100644 --- a/contrib/balancer/go.sum +++ b/contrib/balancer/go.sum @@ -3,15 +3,7 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/BurntSushi/toml v0.4.1 h1:GaI7EiDXDRfa8VshkTj7Fym7ha+y8/XxIgD2okUIjLw= github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ= -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/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho= github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= -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/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE= @@ -25,19 +17,15 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= -github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= -github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc= 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/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78= github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc= -github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= -github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w= @@ -47,12 +35,6 @@ github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4 github.com/fsnotify/fsnotify v1.5.1 h1:mZcQUHVQUQWoPXXtuf9yuEXKudkV2sx1E06UadKWpgI= github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU= github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= -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-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY= -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-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A= github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= github.com/go-logr/logr v1.2.1 h1:DX7uPQ4WgAWfoh+NGGlbJQswnYIVvz0SRlLS3rPZQDA= github.com/go-logr/logr v1.2.1/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= @@ -62,15 +44,10 @@ github.com/go-redis/redis/v8 v8.11.4 h1:kHoYkfZP6+pe04aFTnhDH6GDROa5yJdHJVNxV3F4 github.com/go-redis/redis/v8 v8.11.4/go.mod h1:2Z2wHZXdQpCDXEGzqMockDpNyYvi2l4Pxt6RJr792+w= github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE= github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg= -github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE= -github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA= -github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= -github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= 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= 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v3.5.1/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs= -go.etcd.io/etcd/client/pkg/v3 v3.5.1/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g= -go.etcd.io/etcd/client/v3 v3.5.1/go.mod h1:OnjH4M8OnAotwaB2l9bVgZzRFKru7/ZMoS46OtKyd3Q= go.opentelemetry.io/otel v1.3.0 h1:APxLf0eiBwLl+SOXiJJCVYzA1OOJNyAoV8C5RNRyy7Y= go.opentelemetry.io/otel v1.3.0/go.mod h1:PWIKzi6JCp7sM0k9yZ43VX+T345uNbAkDKwHVjb2PTs= go.opentelemetry.io/otel/sdk v1.3.0 h1:3278edCoH89MEJ0Ky8WQXVmDQv3FX4ZJ3Pp+9fJreAI= @@ -191,10 +113,6 @@ go.opentelemetry.io/otel/sdk v1.3.0/go.mod h1:rIo4suHNhQwBIPg9axF8V9CA72Wz2mKF1t go.opentelemetry.io/otel/trace v1.3.0 h1:doy8Hzb1RJ+I3yFhtDmwNc7tIyw1tNMOIsyPzp1NOGY= go.opentelemetry.io/otel/trace v1.3.0/go.mod h1:c/VDhno8888bvQYmbYLqe41/Ldmr/KKunbvWM4/fEjk= go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI= -go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc= -go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU= -go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo= -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/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= @@ -202,76 +120,52 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU= golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= 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v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e h1:WUoyKPm6nCo1BnNUvPGnFG3T5DUVem42yDJZZ4CNxMA= golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= -golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.8-0.20211105212822-18b340fc7af2 h1:GLw7MR8AfAG2GmGcmVgObFOHXYypgGjnGno25RDwn3Y= golang.org/x/text v0.3.8-0.20211105212822-18b340fc7af2/go.mod h1:EFNZuWvGYxIRUEX+K8UmCFwYmZjqcrnq15ZuVldZkZ0= @@ -281,11 +175,7 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= -golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= -golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= -golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk= golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= @@ -297,15 +187,14 @@ google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c= +google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY= google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo= -google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0= google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY= google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk= google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0= google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU= -google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM= google.golang.org/grpc v1.43.0 h1:Eeu7bZtDZ2DpRCsLhUlcrLnvYaMK1Gz86a+hMVvELmM= google.golang.org/grpc v1.43.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU= google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8= @@ -320,19 +209,14 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk= google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= -gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= 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/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= -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 v2.2.3/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/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= @@ -341,4 +225,3 @@ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc= diff --git a/contrib/registry/etcd/etcd.go b/contrib/registry/etcd/etcd.go index c6ed21f07..7f5997a85 100644 --- a/contrib/registry/etcd/etcd.go +++ b/contrib/registry/etcd/etcd.go @@ -1,3 +1,10 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +// Package etcd implements service Registry and Discovery using etcd. package etcd import ( @@ -17,7 +24,6 @@ var ( _ gsvc.Watcher = &watcher{} ) -// Registry is etcd registry. type Registry struct { client *etcd3.Client kv etcd3.KV diff --git a/contrib/registry/etcd/etcd_discovery.go b/contrib/registry/etcd/etcd_discovery.go index c20178621..e2dba9ce0 100644 --- a/contrib/registry/etcd/etcd_discovery.go +++ b/contrib/registry/etcd/etcd_discovery.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package etcd import ( diff --git a/contrib/registry/etcd/etcd_registry.go b/contrib/registry/etcd/etcd_registry.go index bb2246c48..db629c6d7 100644 --- a/contrib/registry/etcd/etcd_registry.go +++ b/contrib/registry/etcd/etcd_registry.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package etcd import ( diff --git a/contrib/registry/etcd/etcd_watcher.go b/contrib/registry/etcd/etcd_watcher.go index 4ee36c214..9928696a7 100644 --- a/contrib/registry/etcd/etcd_watcher.go +++ b/contrib/registry/etcd/etcd_watcher.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package etcd import ( diff --git a/contrib/resolver/resolver.go b/contrib/resolver/resolver.go index 7ebe18078..8f8a2c85b 100644 --- a/contrib/resolver/resolver.go +++ b/contrib/resolver/resolver.go @@ -1,3 +1,10 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +// Package resolver defines APIs for name resolution in gRPC. package resolver import ( @@ -7,7 +14,7 @@ import ( ) const ( - RawSvcKeyInSubConnInfo = `RawService` + rawSvcKeyInSubConnInfo = `RawService` ) func init() { diff --git a/contrib/resolver/resolver_builder.go b/contrib/resolver/resolver_builder.go index 3ef45633d..a2cf683c9 100644 --- a/contrib/resolver/resolver_builder.go +++ b/contrib/resolver/resolver_builder.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package resolver import ( @@ -6,7 +12,6 @@ import ( "github.com/gogf/gf/v2/errors/gerror" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/net/gsvc" - "github.com/gogf/gf/v2/os/glog" "google.golang.org/grpc/resolver" ) @@ -20,7 +25,7 @@ func (b *Builder) Build( watcher gsvc.Watcher ctx, cancel = context.WithCancel(context.Background()) ) - glog.Debugf(ctx, `etcd Watch key "%s"`, target.URL.Path) + g.Log().Debugf(ctx, `etcd Watch key "%s"`, target.URL.Path) if watcher, err = gsvc.Watch(ctx, target.URL.Path); err != nil { cancel() return nil, gerror.Wrap(err, `registry.Watch failed`) diff --git a/contrib/resolver/resolver_resolver.go b/contrib/resolver/resolver_resolver.go index 0cc9b4584..fe7a4b5c9 100644 --- a/contrib/resolver/resolver_resolver.go +++ b/contrib/resolver/resolver_resolver.go @@ -1,3 +1,9 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + package resolver import ( @@ -11,6 +17,9 @@ import ( "google.golang.org/grpc/resolver" ) +// Resolver implements grpc resolver.Resolver, +// which watches for the updates on the specified target. +// Updates include address updates and service config updates. type Resolver struct { watcher gsvc.Watcher cc resolver.ClientConn @@ -51,7 +60,7 @@ func (r *Resolver) update(services []*gsvc.Service) { ServerName: service.Name, Attributes: newAttributesFromMetadata(service.Metadata), } - addr.Attributes = addr.Attributes.WithValue(RawSvcKeyInSubConnInfo, service) + addr.Attributes = addr.Attributes.WithValue(rawSvcKeyInSubConnInfo, service) addresses = append(addresses, addr) } } @@ -59,11 +68,13 @@ func (r *Resolver) update(services []*gsvc.Service) { r.logger.Noticef(r.ctx, "empty addresses parsed from: %+v", services) return } + r.logger.Debugf(r.ctx, "client conn updated with addresses %+v", addresses) if err = r.cc.UpdateState(resolver.State{Addresses: addresses}); err != nil { r.logger.Errorf(r.ctx, "UpdateState failed: %+v", err) } } +// Close closes the resolver. func (r *Resolver) Close() { r.logger.Debugf(r.ctx, `resolver closed`) if err := r.watcher.Close(); err != nil { @@ -72,6 +83,10 @@ func (r *Resolver) Close() { r.cancel() } +// ResolveNow will be called by gRPC to try to resolve the target name +// again. It's just a hint, resolver can ignore this if it's not necessary. +// +// It could be called multiple times concurrently. func (r *Resolver) ResolveNow(options resolver.ResolveNowOptions) { } diff --git a/example/go.mod b/example/go.mod index 291646a44..affcdb4e1 100644 --- a/example/go.mod +++ b/example/go.mod @@ -5,6 +5,7 @@ go 1.15 require ( github.com/gogf/gf/contrib/registry/etcd/v2 v2.0.0-rc2 github.com/gogf/gf/contrib/resolver/v2 v2.0.0-rc2 + github.com/gogf/gf/contrib/balancer/v2 v2.0.0-rc2 github.com/gogf/gf/v2 v2.0.0-rc2 github.com/golang/protobuf v1.5.2 google.golang.org/grpc v1.43.0 @@ -12,6 +13,7 @@ require ( ) replace ( + github.com/gogf/gf/contrib/balancer/v2 => ../contrib/balancer/ github.com/gogf/gf/contrib/registry/etcd/v2 => ../contrib/registry/etcd/ github.com/gogf/gf/contrib/resolver/v2 => ../contrib/resolver/ github.com/gogf/gf/v2 => ../ diff --git a/example/rawgrpc/greeter_client/main.go b/example/rawgrpc/greeter_client/main.go index 8a9d30612..01c0ecb7a 100644 --- a/example/rawgrpc/greeter_client/main.go +++ b/example/rawgrpc/greeter_client/main.go @@ -1,6 +1,9 @@ package main import ( + "time" + + "github.com/gogf/gf/contrib/balancer/v2" "github.com/gogf/gf/contrib/registry/etcd/v2" "github.com/gogf/gf/contrib/resolver/v2" pb "github.com/gogf/gf/example/rawgrpc/helloworld" @@ -21,17 +24,21 @@ func main() { // Set up a connection to the server. conn, err := grpc.Dial( service.KeyWithSchema(), + balancer.WithRandom(), grpc.WithTransportCredentials(insecure.NewCredentials()), ) if err != nil { g.Log().Fatalf(ctx, "did not connect: %v", err) } defer conn.Close() - c := pb.NewGreeterClient(conn) - r, err := c.SayHello(ctx, &pb.HelloRequest{Name: `GoFrame`}) - if err != nil { - g.Log().Fatalf(ctx, "could not greet: %+v", err) + client := pb.NewGreeterClient(conn) + for i := 0; i < 10; i++ { + res, err := client.SayHello(ctx, &pb.HelloRequest{Name: `GoFrame`}) + if err != nil { + g.Log().Fatalf(ctx, "could not greet: %+v", err) + } + g.Log().Printf(ctx, "Greeting: %s", res.GetMessage()) + time.Sleep(time.Second) } - g.Log().Printf(ctx, "Greeting: %s", r.GetMessage()) } diff --git a/net/gsel/gsel.go b/net/gsel/gsel.go index 1ef9ca85c..8996b6f8d 100644 --- a/net/gsel/gsel.go +++ b/net/gsel/gsel.go @@ -36,7 +36,7 @@ type DoneInfo struct { Err error // Trailer contains the metadata from the RPC's trailer, if present. - Trailer MD + Trailer DoneInfoMD // BytesSent indicates if any bytes have been sent to the server. BytesSent bool @@ -50,3 +50,30 @@ type DoneInfo struct { // The only supported type now is *orca_v1.LoadReport. ServerLoad interface{} } + +// DoneInfoMD is a mapping from metadata keys to value array. +// Users should use the following two convenience functions New and Pairs to generate MD. +type DoneInfoMD interface { + // Len returns the number of items in md. + Len() int + + // Get obtains the values for a given key. + // + // k is converted to lowercase before searching in md. + Get(k string) []string + + // Set sets the value of a given key with a slice of values. + // + // k is converted to lowercase before storing in md. + Set(key string, values ...string) + + // Append adds the values to key k, not overwriting what was already stored at + // that key. + // + // k is converted to lowercase before storing in md. + Append(k string, values ...string) + + // Delete removes the values for a given key k which is converted to lowercase + // before removing it from md. + Delete(k string) +} diff --git a/net/gsel/gsel_md.go b/net/gsel/gsel_md.go deleted file mode 100644 index d4046ca0b..000000000 --- a/net/gsel/gsel_md.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. -// -// This Source Code Form is subject to the terms of the MIT License. -// If a copy of the MIT was not distributed with this file, -// You can obtain one at https://github.com/gogf/gf. - -package gsel - -// MD is a mapping from metadata keys to value array. -// Users should use the following two convenience functions New and Pairs to generate MD. -type MD interface { - // Len returns the number of items in md. - Len() int - - // Get obtains the values for a given key. - // - // k is converted to lowercase before searching in md. - Get(k string) []string - - // Set sets the value of a given key with a slice of values. - // - // k is converted to lowercase before storing in md. - Set(key string, values ...string) - - // Append adds the values to key k, not overwriting what was already stored at - // that key. - // - // k is converted to lowercase before storing in md. - Append(k string, values ...string) - - // Delete removes the values for a given key k which is converted to lowercase - // before removing it from md. - Delete(k string) -} diff --git a/net/gsel/gsel_selector_least_connection.go b/net/gsel/gsel_selector_least_connection.go new file mode 100644 index 000000000..2a8625726 --- /dev/null +++ b/net/gsel/gsel_selector_least_connection.go @@ -0,0 +1,69 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +package gsel + +import ( + "context" + "sync" + + "github.com/gogf/gf/v2/container/gtype" +) + +const SelectorLeastConnection = "BalancerLeastConnection" + +type selectorLeastConnection struct { + mu sync.RWMutex + nodes []*leastConnectionNode +} + +type leastConnectionNode struct { + Node + inflight *gtype.Int +} + +func NewSelectorLeastConnection() Selector { + return &selectorLeastConnection{ + nodes: make([]*leastConnectionNode, 0), + } +} + +func (s *selectorLeastConnection) Update(nodes []Node) error { + var newNodes []*leastConnectionNode + for _, v := range nodes { + node := v + newNodes = append(newNodes, &leastConnectionNode{ + Node: node, + inflight: gtype.NewInt(), + }) + } + s.mu.Lock() + defer s.mu.Unlock() + s.nodes = newNodes + return nil +} + +func (s *selectorLeastConnection) Pick(ctx context.Context) (node Node, done DoneFunc, err error) { + s.mu.RLock() + defer s.mu.RUnlock() + var pickedNode *leastConnectionNode + if len(s.nodes) == 1 { + pickedNode = s.nodes[0] + } else { + for _, v := range s.nodes { + if pickedNode == nil { + pickedNode = v + } else if v.inflight.Val() < pickedNode.inflight.Val() { + pickedNode = v + } + } + } + pickedNode.inflight.Add(1) + done = func(ctx context.Context, di DoneInfo) { + pickedNode.inflight.Add(-1) + } + return pickedNode.Node, done, nil +} diff --git a/net/gsel/gsel_selector_random.go b/net/gsel/gsel_selector_random.go index b1e1f1a01..466f30674 100644 --- a/net/gsel/gsel_selector_random.go +++ b/net/gsel/gsel_selector_random.go @@ -13,28 +13,31 @@ import ( "github.com/gogf/gf/v2/util/grand" ) -const SelectorNameRandom = "BalancerRandom" +const SelectorRandom = "BalancerRandom" -type selectorNameRandom struct { +type selectorRandom struct { mu sync.RWMutex nodes []Node } func NewSelectorRandom() Selector { - return &selectorNameRandom{ + return &selectorRandom{ nodes: make([]Node, 0), } } -func (p *selectorNameRandom) Update(nodes []Node) error { - p.mu.Lock() - defer p.mu.Unlock() - p.nodes = append(p.nodes, nodes...) +func (s *selectorRandom) Update(nodes []Node) error { + s.mu.Lock() + defer s.mu.Unlock() + s.nodes = nodes return nil } -func (p *selectorNameRandom) Pick(ctx context.Context) (node Node, done DoneFunc, err error) { - p.mu.RLock() - defer p.mu.RUnlock() - return p.nodes[grand.Intn(len(p.nodes))], nil, nil +func (s *selectorRandom) Pick(ctx context.Context) (node Node, done DoneFunc, err error) { + s.mu.RLock() + defer s.mu.RUnlock() + if len(s.nodes) == 0 { + return nil, nil, nil + } + return s.nodes[grand.Intn(len(s.nodes))], nil, nil } diff --git a/net/gsel/gsel_selector_round_robin.go b/net/gsel/gsel_selector_round_robin.go new file mode 100644 index 000000000..8f82bf920 --- /dev/null +++ b/net/gsel/gsel_selector_round_robin.go @@ -0,0 +1,41 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +package gsel + +import ( + "context" + "sync" +) + +const SelectorRoundRobin = "BalancerRoundRobin" + +type selectorRoundRobin struct { + mu sync.RWMutex + nodes []Node + next int +} + +func NewSelectorRoundRobin() Selector { + return &selectorRoundRobin{ + nodes: make([]Node, 0), + } +} + +func (s *selectorRoundRobin) Update(nodes []Node) error { + s.mu.Lock() + s.nodes = nodes + s.mu.Unlock() + return nil +} + +func (s *selectorRoundRobin) Pick(ctx context.Context) (node Node, done DoneFunc, err error) { + s.mu.RLock() + defer s.mu.RUnlock() + node = s.nodes[s.next] + s.next = (s.next + 1) % len(s.nodes) + return +} diff --git a/net/gsel/gsel_selector_weight.go b/net/gsel/gsel_selector_weight.go new file mode 100644 index 000000000..bbbf59d12 --- /dev/null +++ b/net/gsel/gsel_selector_weight.go @@ -0,0 +1,55 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +package gsel + +import ( + "context" + "sync" + + "github.com/gogf/gf/v2/net/gsvc" + "github.com/gogf/gf/v2/util/grand" +) + +const SelectorWeight = "BalancerWeight" + +type selectorWeight struct { + mu sync.RWMutex + nodes []Node +} + +func NewSelectorWeight() Selector { + return &selectorWeight{ + nodes: make([]Node, 0), + } +} + +func (s *selectorWeight) Update(nodes []Node) error { + var newNodes []Node + for _, v := range nodes { + node := v + for i := 0; i < s.getWeight(node); i++ { + newNodes = append(newNodes, node) + } + } + s.mu.Lock() + s.nodes = newNodes + s.mu.Unlock() + return nil +} + +func (s *selectorWeight) Pick(ctx context.Context) (node Node, done DoneFunc, err error) { + s.mu.RLock() + defer s.mu.RUnlock() + if len(s.nodes) == 0 { + return nil, nil, nil + } + return s.nodes[grand.Intn(len(s.nodes))], nil, nil +} + +func (s *selectorWeight) getWeight(node Node) int { + return node.Service().Metadata.Get(gsvc.MDWeight).Int() +} diff --git a/net/gsvc/gsvc.go b/net/gsvc/gsvc.go index b825ef2f9..3f3e8e2a9 100644 --- a/net/gsvc/gsvc.go +++ b/net/gsvc/gsvc.go @@ -48,15 +48,18 @@ type Watcher interface { // Service definition. type Service struct { - Prefix string // Service prefix. - Deployment string // Service deployment name, eg: dev, qa, staging, prod, etc. - Namespace string // Service Namespace, to indicate different service in the same environment with the same Name. - Name string // Name for the service. - Version string // Service version, eg: v1.0.0, v2.1.1, etc. - Endpoints []string // Service Endpoints, pattern: IP:port, eg: 192.168.1.2:8000. - Metadata map[string]interface{} // Custom data for this service, which can be set using JSON by environment or command-line. + Prefix string // Service prefix. + Deployment string // Service deployment name, eg: dev, qa, staging, prod, etc. + Namespace string // Service Namespace, to indicate different service in the same environment with the same Name. + Name string // Name for the service. + Version string // Service version, eg: v1.0.0, v2.1.1, etc. + Endpoints []string // Service Endpoints, pattern: IP:port, eg: 192.168.1.2:8000. + Metadata Metadata // Custom data for this service, which can be set using JSON by environment or command-line. } +// Metadata stores custom key-value pairs. +type Metadata map[string]interface{} + // SearchInput is the input for service searching. type SearchInput struct { Prefix string // Service prefix. @@ -88,6 +91,7 @@ const ( EnvVersion = `GF_GSVC_VERSION` MDProtocol = `protocol` MDInsecure = `insecure` + MDWeight = `weight` ) var ( diff --git a/net/gsvc/gsvc_metadata.go b/net/gsvc/gsvc_metadata.go new file mode 100644 index 000000000..015c4432a --- /dev/null +++ b/net/gsvc/gsvc_metadata.go @@ -0,0 +1,24 @@ +// Copyright GoFrame Author(https://goframe.org). All Rights Reserved. +// +// This Source Code Form is subject to the terms of the MIT License. +// If a copy of the MIT was not distributed with this file, +// You can obtain one at https://github.com/gogf/gf. + +package gsvc + +import ( + "github.com/gogf/gf/v2/container/gvar" +) + +// Set sets key-value pair into metadata. +func (m Metadata) Set(key string, value string) { + m[key] = value +} + +// Get retrieves and returns value of specified key as gvar. +func (m Metadata) Get(key string) *gvar.Var { + if v, ok := m[key]; ok { + return gvar.New(v) + } + return nil +} diff --git a/net/gsvc/gsvc_search.go b/net/gsvc/gsvc_search.go index 904c7c1e5..4f9263b7f 100644 --- a/net/gsvc/gsvc_search.go +++ b/net/gsvc/gsvc_search.go @@ -6,6 +6,7 @@ package gsvc +// Key formats and returns a string for prefix searching purpose. func (s *SearchInput) Key() string { keyPrefix := "" if s.Prefix != "" { diff --git a/net/gsvc/gsvc_service.go b/net/gsvc/gsvc_service.go index de6ff3d93..1a8eef6cc 100644 --- a/net/gsvc/gsvc_service.go +++ b/net/gsvc/gsvc_service.go @@ -26,7 +26,7 @@ const ( func NewServiceWithName(name string) (s *Service) { s = &Service{ Name: name, - Metadata: make(map[string]interface{}), + Metadata: make(Metadata), } s.autoFillDefaultAttributes() return s @@ -45,7 +45,7 @@ func NewServiceWithKV(key, value []byte) (s *Service, err error) { Name: array[3], Version: array[4], Endpoints: gstr.Split(array[5], ","), - Metadata: make(map[string]interface{}), + Metadata: make(Metadata), } s.autoFillDefaultAttributes() if len(value) > 0 {