mirror of
https://gitee.com/milvus-io/milvus.git
synced 2025-12-08 01:58:34 +08:00
255 lines
6.9 KiB
Go
255 lines
6.9 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package grpcdatanode
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"math"
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"net"
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"strconv"
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"sync"
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"time"
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otgrpc "github.com/opentracing-contrib/go-grpc"
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"github.com/opentracing/opentracing-go"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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dn "github.com/zilliztech/milvus-distributed/internal/datanode"
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dsc "github.com/zilliztech/milvus-distributed/internal/distributed/dataservice/client"
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msc "github.com/zilliztech/milvus-distributed/internal/distributed/masterservice/client"
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"github.com/zilliztech/milvus-distributed/internal/log"
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"github.com/zilliztech/milvus-distributed/internal/msgstream"
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"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
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"github.com/zilliztech/milvus-distributed/internal/proto/datapb"
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"github.com/zilliztech/milvus-distributed/internal/proto/internalpb"
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"github.com/zilliztech/milvus-distributed/internal/proto/milvuspb"
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"github.com/zilliztech/milvus-distributed/internal/types"
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"github.com/zilliztech/milvus-distributed/internal/util/funcutil"
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"github.com/zilliztech/milvus-distributed/internal/util/trace"
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)
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type Server struct {
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datanode *dn.DataNode
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wg sync.WaitGroup
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grpcErrChan chan error
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grpcServer *grpc.Server
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ctx context.Context
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cancel context.CancelFunc
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msFactory msgstream.Factory
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masterService types.MasterService
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dataService types.DataService
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closer io.Closer
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}
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func New(ctx context.Context, factory msgstream.Factory) (*Server, error) {
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ctx1, cancel := context.WithCancel(ctx)
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var s = &Server{
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ctx: ctx1,
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cancel: cancel,
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msFactory: factory,
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grpcErrChan: make(chan error),
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}
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s.datanode = dn.NewDataNode(s.ctx, s.msFactory)
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return s, nil
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}
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func (s *Server) startGrpcLoop(grpcPort int) {
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defer s.wg.Done()
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addr := ":" + strconv.Itoa(grpcPort)
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lis, err := net.Listen("tcp", addr)
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if err != nil {
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log.Warn("GrpcServer failed to listen", zap.Error(err))
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s.grpcErrChan <- err
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return
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}
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log.Debug("DataNode address", zap.String("address", addr))
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tracer := opentracing.GlobalTracer()
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s.grpcServer = grpc.NewServer(
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grpc.MaxRecvMsgSize(math.MaxInt32),
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grpc.MaxSendMsgSize(math.MaxInt32),
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grpc.UnaryInterceptor(
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otgrpc.OpenTracingServerInterceptor(tracer)),
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grpc.StreamInterceptor(
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otgrpc.OpenTracingStreamServerInterceptor(tracer)))
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datapb.RegisterDataNodeServer(s.grpcServer, s)
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ctx, cancel := context.WithCancel(s.ctx)
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defer cancel()
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go funcutil.CheckGrpcReady(ctx, s.grpcErrChan)
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if err := s.grpcServer.Serve(lis); err != nil {
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log.Warn("DataNode Start Grpc Failed!")
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s.grpcErrChan <- err
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}
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}
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func (s *Server) SetMasterServiceInterface(ms types.MasterService) error {
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return s.datanode.SetMasterServiceInterface(ms)
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}
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func (s *Server) SetDataServiceInterface(ds types.DataService) error {
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return s.datanode.SetDataServiceInterface(ds)
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}
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func (s *Server) Run() error {
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if err := s.init(); err != nil {
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return err
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}
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log.Debug("data node init done ...")
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if err := s.start(); err != nil {
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return err
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}
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log.Debug("data node start done ...")
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return nil
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}
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func (s *Server) Stop() error {
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if s.closer != nil {
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if err := s.closer.Close(); err != nil {
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return err
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}
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}
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s.cancel()
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if s.grpcServer != nil {
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s.grpcServer.GracefulStop()
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}
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err := s.datanode.Stop()
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if err != nil {
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return err
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}
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s.wg.Wait()
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return nil
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}
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func (s *Server) init() error {
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ctx := context.Background()
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Params.Init()
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if !funcutil.CheckPortAvailable(Params.Port) {
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Params.Port = funcutil.GetAvailablePort()
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log.Warn("DataNode init", zap.Any("Port", Params.Port))
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}
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Params.LoadFromEnv()
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Params.LoadFromArgs()
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dn.Params.Init()
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dn.Params.Port = Params.Port
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dn.Params.IP = Params.IP
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log.Debug("DataNode port", zap.Int("port", Params.Port))
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closer := trace.InitTracing(fmt.Sprintf("data_node ip: %s, port: %d", Params.IP, Params.Port))
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s.closer = closer
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s.wg.Add(1)
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go s.startGrpcLoop(Params.Port)
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// wait for grpc server loop start
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err := <-s.grpcErrChan
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if err != nil {
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return err
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}
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// --- Master Server Client ---
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log.Debug("Master service address", zap.String("address", Params.MasterAddress))
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log.Debug("Init master service client ...")
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masterClient, err := msc.NewClient(Params.MasterAddress, 20*time.Second)
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if err != nil {
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panic(err)
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}
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if err = masterClient.Init(); err != nil {
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panic(err)
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}
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if err = masterClient.Start(); err != nil {
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panic(err)
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}
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err = funcutil.WaitForComponentHealthy(ctx, masterClient, "MasterService", 1000000, time.Millisecond*200)
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if err != nil {
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panic(err)
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}
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if err := s.SetMasterServiceInterface(masterClient); err != nil {
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panic(err)
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}
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// --- Data Server Client ---
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log.Debug("Data service address", zap.String("address", Params.DataServiceAddress))
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log.Debug("DataNode Init data service client ...")
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dataService := dsc.NewClient(Params.DataServiceAddress)
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if err = dataService.Init(); err != nil {
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panic(err)
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}
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if err = dataService.Start(); err != nil {
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panic(err)
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}
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err = funcutil.WaitForComponentInitOrHealthy(ctx, dataService, "DataService", 1000000, time.Millisecond*200)
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if err != nil {
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panic(err)
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}
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if err := s.SetDataServiceInterface(dataService); err != nil {
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panic(err)
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}
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s.datanode.NodeID = dn.Params.NodeID
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s.datanode.UpdateStateCode(internalpb.StateCode_Initializing)
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if err := s.datanode.Init(); err != nil {
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log.Warn("datanode init error: ", zap.Error(err))
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return err
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}
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return nil
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}
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func (s *Server) start() error {
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return s.datanode.Start()
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}
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func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
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return s.datanode.GetComponentStates(ctx)
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}
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func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
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return s.datanode.GetStatisticsChannel(ctx)
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}
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func (s *Server) WatchDmChannels(ctx context.Context, req *datapb.WatchDmChannelsRequest) (*commonpb.Status, error) {
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return s.datanode.WatchDmChannels(ctx, req)
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}
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func (s *Server) FlushSegments(ctx context.Context, req *datapb.FlushSegmentsRequest) (*commonpb.Status, error) {
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if s.datanode.State.Load().(internalpb.StateCode) != internalpb.StateCode_Healthy {
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return &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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Reason: "DataNode isn't healthy.",
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}, errors.New("DataNode is not ready yet")
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}
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return s.datanode.FlushSegments(ctx, req)
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}
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