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This is an automated cherry-pick of tikv#7884
ref tikv#5520 Signed-off-by: ti-chi-bot <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,318 @@ | ||
| // Copyright 2023 TiKV Project Authors. | ||
| // | ||
| // 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, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package pd | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "errors" | ||
| "log" | ||
| "net" | ||
| "net/url" | ||
| "sync/atomic" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/failpoint" | ||
| "github.com/pingcap/kvproto/pkg/pdpb" | ||
| "github.com/stretchr/testify/require" | ||
| "github.com/stretchr/testify/suite" | ||
| "github.com/tikv/pd/client/grpcutil" | ||
| "github.com/tikv/pd/client/testutil" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
| pb "google.golang.org/grpc/examples/helloworld/helloworld" | ||
| "google.golang.org/grpc/health" | ||
| healthpb "google.golang.org/grpc/health/grpc_health_v1" | ||
| "google.golang.org/grpc/metadata" | ||
| ) | ||
|
|
||
| type testGRPCServer struct { | ||
| pb.UnimplementedGreeterServer | ||
| isLeader bool | ||
| leaderAddr string | ||
| leaderConn *grpc.ClientConn | ||
| handleCount atomic.Int32 | ||
| forwardCount atomic.Int32 | ||
| } | ||
|
|
||
| // SayHello implements helloworld.GreeterServer | ||
| func (s *testGRPCServer) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) { | ||
| if !s.isLeader { | ||
| if !grpcutil.IsFollowerHandleEnabled(ctx, metadata.FromIncomingContext) { | ||
| if addr := grpcutil.GetForwardedHost(ctx, metadata.FromIncomingContext); addr == s.leaderAddr { | ||
| s.forwardCount.Add(1) | ||
| return pb.NewGreeterClient(s.leaderConn).SayHello(ctx, in) | ||
| } | ||
| return nil, errors.New("not leader") | ||
| } | ||
| } | ||
| s.handleCount.Add(1) | ||
| return &pb.HelloReply{Message: "Hello " + in.GetName()}, nil | ||
| } | ||
|
|
||
| func (s *testGRPCServer) resetCount() { | ||
| s.handleCount.Store(0) | ||
| s.forwardCount.Store(0) | ||
| } | ||
|
|
||
| func (s *testGRPCServer) getHandleCount() int32 { | ||
| return s.handleCount.Load() | ||
| } | ||
|
|
||
| func (s *testGRPCServer) getForwardCount() int32 { | ||
| return s.forwardCount.Load() | ||
| } | ||
|
|
||
| type testServer struct { | ||
| server *testGRPCServer | ||
| grpcServer *grpc.Server | ||
| addr string | ||
| } | ||
|
|
||
| func newTestServer(isLeader bool) *testServer { | ||
| addr := testutil.Alloc() | ||
| u, err := url.Parse(addr) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| grpcServer := grpc.NewServer() | ||
| server := &testGRPCServer{ | ||
| isLeader: isLeader, | ||
| } | ||
| pb.RegisterGreeterServer(grpcServer, server) | ||
| hsrv := health.NewServer() | ||
| hsrv.SetServingStatus("", healthpb.HealthCheckResponse_SERVING) | ||
| healthpb.RegisterHealthServer(grpcServer, hsrv) | ||
| return &testServer{ | ||
| server: server, | ||
| grpcServer: grpcServer, | ||
| addr: u.Host, | ||
| } | ||
| } | ||
|
|
||
| func (s *testServer) run() { | ||
| lis, err := net.Listen("tcp", s.addr) | ||
| if err != nil { | ||
| log.Fatalf("failed to serve: %v", err) | ||
| } | ||
| if err := s.grpcServer.Serve(lis); err != nil { | ||
| log.Fatalf("failed to serve: %v", err) | ||
| } | ||
| } | ||
|
|
||
| type serviceClientTestSuite struct { | ||
| suite.Suite | ||
| ctx context.Context | ||
| clean context.CancelFunc | ||
|
|
||
| leaderServer *testServer | ||
| followerServer *testServer | ||
|
|
||
| leaderClient ServiceClient | ||
| followerClient ServiceClient | ||
| } | ||
|
|
||
| func TestServiceClientClientTestSuite(t *testing.T) { | ||
| suite.Run(t, new(serviceClientTestSuite)) | ||
| } | ||
|
|
||
| func (suite *serviceClientTestSuite) SetupSuite() { | ||
| suite.ctx, suite.clean = context.WithCancel(context.Background()) | ||
|
|
||
| suite.leaderServer = newTestServer(true) | ||
| suite.followerServer = newTestServer(false) | ||
| go suite.leaderServer.run() | ||
| go suite.followerServer.run() | ||
| for i := 0; i < 10; i++ { | ||
| leaderConn, err1 := grpc.Dial(suite.leaderServer.addr, grpc.WithTransportCredentials(insecure.NewCredentials())) | ||
| followerConn, err2 := grpc.Dial(suite.followerServer.addr, grpc.WithTransportCredentials(insecure.NewCredentials())) | ||
| if err1 == nil && err2 == nil { | ||
| suite.followerClient = newPDServiceClient(suite.followerServer.addr, suite.leaderServer.addr, nil, followerConn, false) | ||
| suite.leaderClient = newPDServiceClient(suite.leaderServer.addr, suite.leaderServer.addr, nil, leaderConn, true) | ||
| suite.followerServer.server.leaderConn = suite.leaderClient.GetClientConn() | ||
| suite.followerServer.server.leaderAddr = suite.leaderClient.GetAddress() | ||
| return | ||
| } | ||
| time.Sleep(50 * time.Millisecond) | ||
| } | ||
| suite.NotNil(suite.leaderClient) | ||
| } | ||
|
|
||
| func (suite *serviceClientTestSuite) TearDownTest() { | ||
| suite.leaderServer.server.resetCount() | ||
| suite.followerServer.server.resetCount() | ||
| } | ||
|
|
||
| func (suite *serviceClientTestSuite) TearDownSuite() { | ||
| suite.leaderServer.grpcServer.GracefulStop() | ||
| suite.followerServer.grpcServer.GracefulStop() | ||
| suite.leaderClient.GetClientConn().Close() | ||
| suite.followerClient.GetClientConn().Close() | ||
| suite.clean() | ||
| } | ||
|
|
||
| func (suite *serviceClientTestSuite) TestServiceClient() { | ||
| re := suite.Require() | ||
| leaderAddress := suite.leaderServer.addr | ||
| followerAddress := suite.followerServer.addr | ||
|
|
||
| follower := suite.followerClient | ||
| leader := suite.leaderClient | ||
|
|
||
| re.Equal(follower.GetAddress(), followerAddress) | ||
| re.Equal(leader.GetAddress(), leaderAddress) | ||
| re.Equal(follower.GetHTTPAddress(), "http://"+followerAddress) | ||
| re.Equal(leader.GetHTTPAddress(), "http://"+leaderAddress) | ||
|
|
||
| re.True(follower.Available()) | ||
| re.True(leader.Available()) | ||
|
|
||
| re.False(follower.IsConnectedToLeader()) | ||
| re.True(leader.IsConnectedToLeader()) | ||
|
|
||
| re.NoError(failpoint.Enable("github.com/tikv/pd/client/unreachableNetwork1", "return(true)")) | ||
| follower.(*pdServiceClient).checkNetworkAvailable(suite.ctx) | ||
| leader.(*pdServiceClient).checkNetworkAvailable(suite.ctx) | ||
| re.False(follower.Available()) | ||
| re.False(leader.Available()) | ||
| re.NoError(failpoint.Disable("github.com/tikv/pd/client/unreachableNetwork1")) | ||
|
|
||
| follower.(*pdServiceClient).checkNetworkAvailable(suite.ctx) | ||
| leader.(*pdServiceClient).checkNetworkAvailable(suite.ctx) | ||
| re.True(follower.Available()) | ||
| re.True(leader.Available()) | ||
|
|
||
| followerConn := follower.GetClientConn() | ||
| leaderConn := leader.GetClientConn() | ||
| re.NotNil(followerConn) | ||
| re.NotNil(leaderConn) | ||
|
|
||
| _, err := pb.NewGreeterClient(followerConn).SayHello(suite.ctx, &pb.HelloRequest{Name: "pd"}) | ||
| re.ErrorContains(err, "not leader") | ||
| resp, err := pb.NewGreeterClient(leaderConn).SayHello(suite.ctx, &pb.HelloRequest{Name: "pd"}) | ||
| re.NoError(err) | ||
| re.Equal("Hello pd", resp.GetMessage()) | ||
|
|
||
| re.False(follower.NeedRetry(nil, nil)) | ||
| re.False(leader.NeedRetry(nil, nil)) | ||
|
|
||
| ctx1 := context.WithoutCancel(suite.ctx) | ||
| ctx1 = follower.BuildGRPCTargetContext(ctx1, false) | ||
| re.True(grpcutil.IsFollowerHandleEnabled(ctx1, metadata.FromOutgoingContext)) | ||
| re.Empty(grpcutil.GetForwardedHost(ctx1, metadata.FromOutgoingContext)) | ||
| ctx2 := context.WithoutCancel(suite.ctx) | ||
| ctx2 = follower.BuildGRPCTargetContext(ctx2, true) | ||
| re.False(grpcutil.IsFollowerHandleEnabled(ctx2, metadata.FromOutgoingContext)) | ||
| re.Equal(grpcutil.GetForwardedHost(ctx2, metadata.FromOutgoingContext), leaderAddress) | ||
|
|
||
| ctx3 := context.WithoutCancel(suite.ctx) | ||
| ctx3 = leader.BuildGRPCTargetContext(ctx3, false) | ||
| re.False(grpcutil.IsFollowerHandleEnabled(ctx3, metadata.FromOutgoingContext)) | ||
| re.Empty(grpcutil.GetForwardedHost(ctx3, metadata.FromOutgoingContext)) | ||
| ctx4 := context.WithoutCancel(suite.ctx) | ||
| ctx4 = leader.BuildGRPCTargetContext(ctx4, true) | ||
| re.False(grpcutil.IsFollowerHandleEnabled(ctx4, metadata.FromOutgoingContext)) | ||
| re.Empty(grpcutil.GetForwardedHost(ctx4, metadata.FromOutgoingContext)) | ||
|
|
||
| followerAPIClient := newPDServiceAPIClient(follower, regionAPIErrorFn) | ||
| leaderAPIClient := newPDServiceAPIClient(leader, regionAPIErrorFn) | ||
|
|
||
| re.NoError(failpoint.Enable("github.com/tikv/pd/client/fastCheckAvailable", "return(true)")) | ||
|
|
||
| re.True(followerAPIClient.Available()) | ||
| re.True(leaderAPIClient.Available()) | ||
| pdErr1 := &pdpb.Error{ | ||
| Type: pdpb.ErrorType_UNKNOWN, | ||
| } | ||
| pdErr2 := &pdpb.Error{ | ||
| Type: pdpb.ErrorType_REGION_NOT_FOUND, | ||
| } | ||
| err = errors.New("error") | ||
| re.True(followerAPIClient.NeedRetry(pdErr1, nil)) | ||
| re.False(leaderAPIClient.NeedRetry(pdErr1, nil)) | ||
| re.True(followerAPIClient.Available()) | ||
| re.True(leaderAPIClient.Available()) | ||
|
|
||
| re.True(followerAPIClient.NeedRetry(pdErr2, nil)) | ||
| re.False(leaderAPIClient.NeedRetry(pdErr2, nil)) | ||
| re.False(followerAPIClient.Available()) | ||
| re.True(leaderAPIClient.Available()) | ||
| followerAPIClient.(*pdServiceAPIClient).markAsAvailable() | ||
| leaderAPIClient.(*pdServiceAPIClient).markAsAvailable() | ||
| re.False(followerAPIClient.Available()) | ||
| time.Sleep(time.Millisecond * 100) | ||
| followerAPIClient.(*pdServiceAPIClient).markAsAvailable() | ||
| re.True(followerAPIClient.Available()) | ||
|
|
||
| re.True(followerAPIClient.NeedRetry(nil, err)) | ||
| re.False(leaderAPIClient.NeedRetry(nil, err)) | ||
| re.True(followerAPIClient.Available()) | ||
| re.True(leaderAPIClient.Available()) | ||
|
|
||
| re.NoError(failpoint.Disable("github.com/tikv/pd/client/fastCheckAvailable")) | ||
| } | ||
|
|
||
| func (suite *serviceClientTestSuite) TestServiceClientBalancer() { | ||
| re := suite.Require() | ||
| follower := suite.followerClient | ||
| leader := suite.leaderClient | ||
| b := &pdServiceBalancer{} | ||
| b.set([]ServiceClient{leader, follower}) | ||
| re.Equal(2, b.totalNode) | ||
|
|
||
| for i := 0; i < 10; i++ { | ||
| client := b.get() | ||
| ctx := client.BuildGRPCTargetContext(suite.ctx, false) | ||
| conn := client.GetClientConn() | ||
| re.NotNil(conn) | ||
| resp, err := pb.NewGreeterClient(conn).SayHello(ctx, &pb.HelloRequest{Name: "pd"}) | ||
| re.NoError(err) | ||
| re.Equal("Hello pd", resp.GetMessage()) | ||
| } | ||
| re.Equal(int32(5), suite.leaderServer.server.getHandleCount()) | ||
| re.Equal(int32(5), suite.followerServer.server.getHandleCount()) | ||
| suite.followerServer.server.resetCount() | ||
| suite.leaderServer.server.resetCount() | ||
|
|
||
| for i := 0; i < 10; i++ { | ||
| client := b.get() | ||
| ctx := client.BuildGRPCTargetContext(suite.ctx, true) | ||
| conn := client.GetClientConn() | ||
| re.NotNil(conn) | ||
| resp, err := pb.NewGreeterClient(conn).SayHello(ctx, &pb.HelloRequest{Name: "pd"}) | ||
| re.NoError(err) | ||
| re.Equal("Hello pd", resp.GetMessage()) | ||
| } | ||
| re.Equal(int32(10), suite.leaderServer.server.getHandleCount()) | ||
| re.Equal(int32(0), suite.followerServer.server.getHandleCount()) | ||
| re.Equal(int32(5), suite.followerServer.server.getForwardCount()) | ||
| } | ||
|
|
||
| func TestHTTPScheme(t *testing.T) { | ||
| re := require.New(t) | ||
| cli := newPDServiceClient("127.0.0.1:2379", "127.0.0.1:2379", nil, nil, false) | ||
| re.Equal("http://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| cli = newPDServiceClient("https://127.0.0.1:2379", "127.0.0.1:2379", nil, nil, false) | ||
| re.Equal("http://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| cli = newPDServiceClient("http://127.0.0.1:2379", "127.0.0.1:2379", nil, nil, false) | ||
| re.Equal("http://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| cli = newPDServiceClient("127.0.0.1:2379", "127.0.0.1:2379", &tls.Config{}, nil, false) | ||
| re.Equal("https://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| cli = newPDServiceClient("https://127.0.0.1:2379", "127.0.0.1:2379", &tls.Config{}, nil, false) | ||
| re.Equal("https://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| cli = newPDServiceClient("http://127.0.0.1:2379", "127.0.0.1:2379", &tls.Config{}, nil, false) | ||
| re.Equal("https://127.0.0.1:2379", cli.GetHTTPAddress()) | ||
| } |
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