milvus/internal/distributed/queryservice/service.go

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package grpcqueryservice
import (
"context"
"io"
"math"
"net"
"strconv"
"sync"
"time"
otgrpc "github.com/opentracing-contrib/go-grpc"
"github.com/opentracing/opentracing-go"
dsc "github.com/zilliztech/milvus-distributed/internal/distributed/dataservice/client"
msc "github.com/zilliztech/milvus-distributed/internal/distributed/masterservice/client"
"github.com/zilliztech/milvus-distributed/internal/log"
"github.com/zilliztech/milvus-distributed/internal/msgstream"
qs "github.com/zilliztech/milvus-distributed/internal/queryservice"
"github.com/zilliztech/milvus-distributed/internal/types"
"github.com/zilliztech/milvus-distributed/internal/util/funcutil"
"github.com/zilliztech/milvus-distributed/internal/util/trace"
"go.uber.org/zap"
"google.golang.org/grpc"
"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
"github.com/zilliztech/milvus-distributed/internal/proto/internalpb"
"github.com/zilliztech/milvus-distributed/internal/proto/milvuspb"
"github.com/zilliztech/milvus-distributed/internal/proto/querypb"
)
type Server struct {
wg sync.WaitGroup
loopCtx context.Context
loopCancel context.CancelFunc
grpcServer *grpc.Server
grpcErrChan chan error
queryservice *qs.QueryService
msFactory msgstream.Factory
dataService *dsc.Client
masterService *msc.GrpcClient
closer io.Closer
}
func NewServer(ctx context.Context, factory msgstream.Factory) (*Server, error) {
ctx1, cancel := context.WithCancel(ctx)
svr, err := qs.NewQueryService(ctx1, factory)
if err != nil {
cancel()
return nil, err
}
return &Server{
queryservice: svr,
loopCtx: ctx1,
loopCancel: cancel,
msFactory: factory,
grpcErrChan: make(chan error),
}, nil
}
func (s *Server) Run() error {
if err := s.init(); err != nil {
return err
}
log.Debug("queryservice init done ...")
if err := s.start(); err != nil {
return err
}
return nil
}
func (s *Server) init() error {
ctx := context.Background()
Params.Init()
qs.Params.Init()
closer := trace.InitTracing("query_service")
s.closer = closer
s.wg.Add(1)
go s.startGrpcLoop(Params.Port)
// wait for grpc server loop start
if err := <-s.grpcErrChan; err != nil {
return err
}
// --- Master Server Client ---
log.Debug("Master service", zap.String("address", Params.MasterAddress))
log.Debug("Init master service client ...")
masterService, err := msc.NewClient(Params.MasterAddress, 20*time.Second)
if err != nil {
panic(err)
}
if err = masterService.Init(); err != nil {
panic(err)
}
if err = masterService.Start(); err != nil {
panic(err)
}
// wait for master init or healthy
err = funcutil.WaitForComponentInitOrHealthy(ctx, masterService, "MasterService", 1000000, time.Millisecond*200)
if err != nil {
panic(err)
}
if err := s.SetMasterService(masterService); err != nil {
panic(err)
}
// --- Data service client ---
log.Debug("DataService", zap.String("Address", Params.DataServiceAddress))
log.Debug("QueryService Init data service client ...")
dataService := dsc.NewClient(Params.DataServiceAddress)
if err = dataService.Init(); err != nil {
panic(err)
}
if err = dataService.Start(); err != nil {
panic(err)
}
err = funcutil.WaitForComponentInitOrHealthy(ctx, dataService, "DataService", 1000000, time.Millisecond*200)
if err != nil {
panic(err)
}
if err := s.SetDataService(dataService); err != nil {
panic(err)
}
s.queryservice.UpdateStateCode(internalpb.StateCode_Initializing)
if err := s.queryservice.Init(); err != nil {
return err
}
return nil
}
func (s *Server) startGrpcLoop(grpcPort int) {
defer s.wg.Done()
log.Debug("network", zap.String("port", strconv.Itoa(grpcPort)))
lis, err := net.Listen("tcp", ":"+strconv.Itoa(grpcPort))
if err != nil {
log.Debug("GrpcServer:failed to listen:", zap.String("error", err.Error()))
s.grpcErrChan <- err
return
}
ctx, cancel := context.WithCancel(s.loopCtx)
defer cancel()
tracer := opentracing.GlobalTracer()
s.grpcServer = grpc.NewServer(
grpc.MaxRecvMsgSize(math.MaxInt32),
grpc.MaxSendMsgSize(math.MaxInt32),
grpc.UnaryInterceptor(
otgrpc.OpenTracingServerInterceptor(tracer)),
grpc.StreamInterceptor(
otgrpc.OpenTracingStreamServerInterceptor(tracer)))
querypb.RegisterQueryServiceServer(s.grpcServer, s)
go funcutil.CheckGrpcReady(ctx, s.grpcErrChan)
if err := s.grpcServer.Serve(lis); err != nil {
s.grpcErrChan <- err
}
}
func (s *Server) start() error {
return s.queryservice.Start()
}
func (s *Server) Stop() error {
if s.closer != nil {
if err := s.closer.Close(); err != nil {
return err
}
}
err := s.queryservice.Stop()
s.loopCancel()
if s.grpcServer != nil {
s.grpcServer.GracefulStop()
}
return err
}
func (s *Server) SetMasterService(m types.MasterService) error {
s.queryservice.SetMasterService(m)
return nil
}
func (s *Server) SetDataService(d types.DataService) error {
s.queryservice.SetDataService(d)
return nil
}
func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
return s.queryservice.GetComponentStates(ctx)
}
func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
return s.queryservice.GetTimeTickChannel(ctx)
}
func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
return s.queryservice.GetStatisticsChannel(ctx)
}
func (s *Server) RegisterNode(ctx context.Context, req *querypb.RegisterNodeRequest) (*querypb.RegisterNodeResponse, error) {
return s.queryservice.RegisterNode(ctx, req)
}
func (s *Server) ShowCollections(ctx context.Context, req *querypb.ShowCollectionsRequest) (*querypb.ShowCollectionsResponse, error) {
return s.queryservice.ShowCollections(ctx, req)
}
func (s *Server) LoadCollection(ctx context.Context, req *querypb.LoadCollectionRequest) (*commonpb.Status, error) {
return s.queryservice.LoadCollection(ctx, req)
}
func (s *Server) ReleaseCollection(ctx context.Context, req *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
return s.queryservice.ReleaseCollection(ctx, req)
}
func (s *Server) ShowPartitions(ctx context.Context, req *querypb.ShowPartitionsRequest) (*querypb.ShowPartitionsResponse, error) {
return s.queryservice.ShowPartitions(ctx, req)
}
func (s *Server) GetPartitionStates(ctx context.Context, req *querypb.GetPartitionStatesRequest) (*querypb.GetPartitionStatesResponse, error) {
return s.queryservice.GetPartitionStates(ctx, req)
}
func (s *Server) LoadPartitions(ctx context.Context, req *querypb.LoadPartitionsRequest) (*commonpb.Status, error) {
return s.queryservice.LoadPartitions(ctx, req)
}
func (s *Server) ReleasePartitions(ctx context.Context, req *querypb.ReleasePartitionsRequest) (*commonpb.Status, error) {
return s.queryservice.ReleasePartitions(ctx, req)
}
func (s *Server) CreateQueryChannel(ctx context.Context, req *querypb.CreateQueryChannelRequest) (*querypb.CreateQueryChannelResponse, error) {
return s.queryservice.CreateQueryChannel(ctx)
}
func (s *Server) GetSegmentInfo(ctx context.Context, req *querypb.GetSegmentInfoRequest) (*querypb.GetSegmentInfoResponse, error) {
return s.queryservice.GetSegmentInfo(ctx, req)
}