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This is an automated cherry-pick of pingcap#10237
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package sharedconn | ||
|
|
||
| import ( | ||
| "context" | ||
| "net" | ||
| "sync" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/kvproto/pkg/cdcpb" | ||
| "github.com/pingcap/tiflow/pkg/security" | ||
| "github.com/stretchr/testify/require" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/codes" | ||
| grpccodes "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/keepalive" | ||
| "google.golang.org/grpc/status" | ||
| grpcstatus "google.golang.org/grpc/status" | ||
| ) | ||
|
|
||
| func TestConnAndClientPool(t *testing.T) { | ||
| service := make(chan *grpc.Server, 1) | ||
| var addr string | ||
|
|
||
| var wg sync.WaitGroup | ||
| defer wg.Wait() | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| require.Nil(t, runGrpcService(&srv{}, &addr, service)) | ||
| }() | ||
|
|
||
| svc := <-service | ||
| require.NotNil(t, svc) | ||
| defer svc.GracefulStop() | ||
|
|
||
| pool := newConnAndClientPool(&security.Credential{}, nil, 2) | ||
| cc1, err := pool.Connect(context.Background(), addr) | ||
| require.Nil(t, err) | ||
| require.NotNil(t, cc1) | ||
| require.Equal(t, 1, len(cc1.array.conns)) | ||
| require.Equal(t, 1, cc1.conn.streams) | ||
| require.False(t, cc1.Multiplexing()) | ||
|
|
||
| cc2, err := pool.Connect(context.Background(), addr) | ||
| require.Nil(t, err) | ||
| require.NotNil(t, cc2) | ||
| require.Equal(t, 1, len(cc2.array.conns)) | ||
| require.Equal(t, 2, cc2.conn.streams) | ||
| require.False(t, cc2.Multiplexing()) | ||
|
|
||
| cc3, err := pool.Connect(context.Background(), addr) | ||
| require.Nil(t, err) | ||
| require.NotNil(t, cc3) | ||
| require.Equal(t, 2, len(cc3.array.conns)) | ||
| require.Equal(t, 1, cc3.conn.streams) | ||
| require.False(t, cc3.Multiplexing()) | ||
|
|
||
| cc1.Release() | ||
| cc1.Release() | ||
| cc2.Release() | ||
| require.Equal(t, 1, len(cc3.array.conns)) | ||
| require.Equal(t, 1, cc3.conn.streams) | ||
|
|
||
| cc3.Release() | ||
| require.Equal(t, 0, len(pool.stores)) | ||
| } | ||
|
|
||
| func TestConnAndClientPoolForV2(t *testing.T) { | ||
| service := make(chan *grpc.Server, 1) | ||
| var addr string | ||
|
|
||
| var wg sync.WaitGroup | ||
| defer wg.Wait() | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| require.Nil(t, runGrpcService(&srv{v2: true}, &addr, service)) | ||
| }() | ||
|
|
||
| svc := <-service | ||
| require.NotNil(t, svc) | ||
| defer svc.GracefulStop() | ||
|
|
||
| pool := newConnAndClientPool(&security.Credential{}, nil, 2) | ||
| cc1, err := pool.Connect(context.Background(), addr) | ||
| require.Nil(t, err) | ||
| require.NotNil(t, cc1) | ||
| require.True(t, cc1.Multiplexing()) | ||
|
|
||
| cc1.Release() | ||
| require.Equal(t, 0, len(pool.stores)) | ||
| } | ||
|
|
||
| func TestConnectToUnavailable(t *testing.T) { | ||
| pool := newConnAndClientPool(&security.Credential{}, nil, 1) | ||
|
|
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| targets := []string{"127.0.0.1:9999", "2.2.2.2:9999"} | ||
| for _, target := range targets { | ||
| ctx := context.Background() | ||
| conn, err := pool.connect(ctx, target) | ||
| require.NotNil(t, conn) | ||
| require.Nil(t, err) | ||
|
|
||
| rpc := cdcpb.NewChangeDataClient(conn) | ||
| _, err = rpc.EventFeedV2(ctx) | ||
| require.NotNil(t, err) | ||
|
|
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| require.Nil(t, conn.Close()) | ||
| } | ||
|
|
||
| service := make(chan *grpc.Server, 1) | ||
| var addr string | ||
|
|
||
| var wg sync.WaitGroup | ||
| defer wg.Wait() | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| require.Nil(t, runGrpcService(&srv{}, &addr, service)) | ||
| }() | ||
|
|
||
| svc := <-service | ||
| require.NotNil(t, svc) | ||
| defer svc.GracefulStop() | ||
|
|
||
| conn, err := pool.connect(context.Background(), addr) | ||
| require.NotNil(t, conn) | ||
| require.Nil(t, err) | ||
|
|
||
| rpc := cdcpb.NewChangeDataClient(conn) | ||
| client, err := rpc.EventFeedV2(context.Background()) | ||
| require.Nil(t, err) | ||
| _ = client.CloseSend() | ||
|
|
||
| _, err = client.Recv() | ||
| require.Equal(t, codes.Unimplemented, status.Code(err)) | ||
|
|
||
| require.Nil(t, conn.Close()) | ||
| } | ||
|
|
||
| func TestCancelStream(t *testing.T) { | ||
| service := make(chan *grpc.Server, 1) | ||
| var addr string | ||
| var wg sync.WaitGroup | ||
| defer wg.Wait() | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| require.Nil(t, runGrpcService(&srv{}, &addr, service)) | ||
| }() | ||
|
|
||
| svc := <-service | ||
| require.NotNil(t, svc) | ||
| defer svc.GracefulStop() | ||
|
|
||
| connCtx, connCancel := context.WithCancel(context.Background()) | ||
| defer connCancel() | ||
|
|
||
| pool := newConnAndClientPool(&security.Credential{}, nil, 1) | ||
| conn, err := pool.connect(connCtx, addr) | ||
| require.NotNil(t, conn) | ||
| require.Nil(t, err) | ||
|
|
||
| rpcCtx, rpcCancel := context.WithCancel(context.Background()) | ||
| rpc := cdcpb.NewChangeDataClient(conn) | ||
| client, err := rpc.EventFeed(rpcCtx) | ||
| require.Nil(t, err) | ||
|
|
||
| rpcCancel() | ||
| _, err = client.Recv() | ||
| require.Equal(t, grpccodes.Canceled, grpcstatus.Code(err)) | ||
| require.Nil(t, conn.Close()) | ||
| } | ||
|
|
||
| func runGrpcService(srv cdcpb.ChangeDataServer, addr *string, service chan<- *grpc.Server) error { | ||
| defer close(service) | ||
| lis, err := net.Listen("tcp", "127.0.0.1:0") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer lis.Close() | ||
|
|
||
| kaep := keepalive.EnforcementPolicy{ | ||
| MinTime: 3 * time.Second, | ||
| PermitWithoutStream: true, | ||
| } | ||
| kasp := keepalive.ServerParameters{ | ||
| MaxConnectionIdle: 10 * time.Second, | ||
| MaxConnectionAge: 10 * time.Second, | ||
| MaxConnectionAgeGrace: 5 * time.Second, | ||
| Time: 3 * time.Second, | ||
| Timeout: 1 * time.Second, | ||
| } | ||
| grpcServer := grpc.NewServer(grpc.KeepaliveEnforcementPolicy(kaep), grpc.KeepaliveParams(kasp)) | ||
| cdcpb.RegisterChangeDataServer(grpcServer, srv) | ||
| *addr = lis.Addr().String() | ||
| service <- grpcServer | ||
| return grpcServer.Serve(lis) | ||
| } | ||
|
|
||
| type srv struct { | ||
| v2 bool | ||
| } | ||
|
|
||
| func (s *srv) EventFeed(server cdcpb.ChangeData_EventFeedServer) error { | ||
| for { | ||
| if _, err := server.Recv(); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (s *srv) EventFeedV2(server cdcpb.ChangeData_EventFeedV2Server) error { | ||
| if !s.v2 { | ||
| return grpcstatus.Error(grpccodes.Unimplemented, "srv") | ||
| } | ||
| for { | ||
| if _, err := server.Recv(); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } |