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https://gitee.com/milvus-io/milvus.git
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359 lines
11 KiB
Go
359 lines
11 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 grpcrootcoord
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import (
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"context"
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"io"
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"net"
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"strconv"
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"sync"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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grpc_opentracing "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
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dsc "github.com/milvus-io/milvus/internal/distributed/datacoord/client"
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isc "github.com/milvus-io/milvus/internal/distributed/indexcoord/client"
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pnc "github.com/milvus-io/milvus/internal/distributed/proxy/client"
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qsc "github.com/milvus-io/milvus/internal/distributed/querycoord/client"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/msgstream"
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"github.com/milvus-io/milvus/internal/proto/commonpb"
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"github.com/milvus-io/milvus/internal/proto/datapb"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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"github.com/milvus-io/milvus/internal/proto/milvuspb"
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"github.com/milvus-io/milvus/internal/proto/proxypb"
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"github.com/milvus-io/milvus/internal/proto/rootcoordpb"
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"github.com/milvus-io/milvus/internal/rootcoord"
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"github.com/milvus-io/milvus/internal/types"
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"github.com/milvus-io/milvus/internal/util/funcutil"
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"github.com/milvus-io/milvus/internal/util/sessionutil"
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"github.com/milvus-io/milvus/internal/util/trace"
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)
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// Server grpc wrapper
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type Server struct {
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rootCoord types.RootCoordComponent
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grpcServer *grpc.Server
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grpcErrChan chan error
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wg sync.WaitGroup
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ctx context.Context
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cancel context.CancelFunc
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dataCoord types.DataCoord
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indexCoord types.IndexCoord
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queryCoord types.QueryCoord
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newIndexCoordClient func(string, []string) types.IndexCoord
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newDataCoordClient func(string, []string) types.DataCoord
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newQueryCoordClient func(string, []string) types.QueryCoord
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closer io.Closer
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}
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func NewServer(ctx context.Context, factory msgstream.Factory) (*Server, error) {
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ctx1, cancel := context.WithCancel(ctx)
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s := &Server{
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ctx: ctx1,
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cancel: cancel,
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grpcErrChan: make(chan error),
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}
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s.setClient()
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var err error
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s.rootCoord, err = rootcoord.NewCore(s.ctx, factory)
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if err != nil {
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return nil, err
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}
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return s, err
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}
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func (s *Server) setClient() {
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s.newDataCoordClient = func(etcdMetaRoot string, etcdEndpoints []string) types.DataCoord {
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dsClient, err := dsc.NewClient(s.ctx, etcdMetaRoot, etcdEndpoints)
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if err != nil {
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panic(err)
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}
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return dsClient
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}
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s.newIndexCoordClient = func(metaRootPath string, etcdEndpoints []string) types.IndexCoord {
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isClient, err := isc.NewClient(s.ctx, metaRootPath, etcdEndpoints)
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if err != nil {
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panic(err)
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}
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return isClient
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}
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s.newQueryCoordClient = func(metaRootPath string, etcdEndpoints []string) types.QueryCoord {
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qsClient, err := qsc.NewClient(s.ctx, metaRootPath, etcdEndpoints)
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if err != nil {
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panic(err)
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}
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return qsClient
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}
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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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if err := s.start(); err != nil {
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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) init() error {
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Params.Init()
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rootcoord.Params.Init()
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rootcoord.Params.Address = Params.Address
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rootcoord.Params.Port = Params.Port
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log.Debug("grpc init done ...")
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closer := trace.InitTracing("root_coord")
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s.closer = closer
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log.Debug("init params done")
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err := s.rootCoord.Register()
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if err != nil {
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return err
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}
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err = s.startGrpc()
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if err != nil {
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return err
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}
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s.rootCoord.UpdateStateCode(internalpb.StateCode_Initializing)
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log.Debug("RootCoord", zap.Any("State", internalpb.StateCode_Initializing))
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s.rootCoord.SetNewProxyClient(
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func(se *sessionutil.Session) (types.Proxy, error) {
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cli, err := pnc.NewClient(s.ctx, se.Address)
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if err != nil {
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return nil, err
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}
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if err := cli.Init(); err != nil {
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return nil, err
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}
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if err := cli.Start(); err != nil {
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return nil, err
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}
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return cli, nil
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},
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)
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if s.newDataCoordClient != nil {
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log.Debug("RootCoord start to create DataCoord client")
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dataCoord := s.newDataCoordClient(rootcoord.Params.MetaRootPath, rootcoord.Params.EtcdEndpoints)
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if err := s.rootCoord.SetDataCoord(s.ctx, dataCoord); err != nil {
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panic(err)
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}
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s.dataCoord = dataCoord
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}
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if s.newIndexCoordClient != nil {
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log.Debug("RootCoord start to create IndexCoord client")
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indexCoord := s.newIndexCoordClient(rootcoord.Params.MetaRootPath, rootcoord.Params.EtcdEndpoints)
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if err := s.rootCoord.SetIndexCoord(indexCoord); err != nil {
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panic(err)
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}
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s.indexCoord = indexCoord
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}
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if s.newQueryCoordClient != nil {
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log.Debug("RootCoord start to create QueryCoord client")
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queryCoord := s.newQueryCoordClient(rootcoord.Params.MetaRootPath, rootcoord.Params.EtcdEndpoints)
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if err := s.rootCoord.SetQueryCoord(queryCoord); err != nil {
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panic(err)
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}
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s.queryCoord = queryCoord
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}
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return s.rootCoord.Init()
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}
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func (s *Server) startGrpc() error {
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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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return err
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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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log.Debug("start grpc ", zap.Int("port", grpcPort))
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lis, err := net.Listen("tcp", ":"+strconv.Itoa(grpcPort))
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if err != nil {
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log.Error("GrpcServer:failed to listen", zap.String("error", err.Error()))
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s.grpcErrChan <- err
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return
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}
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ctx, cancel := context.WithCancel(s.ctx)
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defer cancel()
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opts := trace.GetInterceptorOpts()
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s.grpcServer = grpc.NewServer(
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grpc.MaxRecvMsgSize(Params.ServerMaxRecvSize),
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grpc.MaxSendMsgSize(Params.ServerMaxSendSize),
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grpc.UnaryInterceptor(grpc_opentracing.UnaryServerInterceptor(opts...)),
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grpc.StreamInterceptor(grpc_opentracing.StreamServerInterceptor(opts...)))
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rootcoordpb.RegisterRootCoordServer(s.grpcServer, s)
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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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s.grpcErrChan <- err
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}
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}
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func (s *Server) start() error {
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log.Debug("RootCoord Core start ...")
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if err := s.rootCoord.Start(); err != nil {
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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) 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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log.Error("close opentracing", zap.Error(err))
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}
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}
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if s.indexCoord != nil {
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if err := s.indexCoord.Stop(); err != nil {
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log.Debug("close indexCoord client", zap.Error(err))
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}
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}
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if s.dataCoord != nil {
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if err := s.dataCoord.Stop(); err != nil {
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log.Debug("close dataCoord client", zap.Error(err))
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}
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}
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if s.queryCoord != nil {
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if err := s.queryCoord.Stop(); err != nil {
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log.Debug("close queryCoord client", zap.Error(err))
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}
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}
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if s.rootCoord != nil {
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if err := s.rootCoord.Stop(); err != nil {
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log.Debug("close rootCoord", zap.Error(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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s.wg.Wait()
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return nil
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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.rootCoord.GetComponentStates(ctx)
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}
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// GetTimeTickChannel receiver time tick from proxy service, and put it into this channel
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func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
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return s.rootCoord.GetTimeTickChannel(ctx)
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}
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// GetStatisticsChannel just define a channel, not used currently
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func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
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return s.rootCoord.GetStatisticsChannel(ctx)
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}
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//DDL request
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func (s *Server) CreateCollection(ctx context.Context, in *milvuspb.CreateCollectionRequest) (*commonpb.Status, error) {
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return s.rootCoord.CreateCollection(ctx, in)
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}
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func (s *Server) DropCollection(ctx context.Context, in *milvuspb.DropCollectionRequest) (*commonpb.Status, error) {
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return s.rootCoord.DropCollection(ctx, in)
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}
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func (s *Server) HasCollection(ctx context.Context, in *milvuspb.HasCollectionRequest) (*milvuspb.BoolResponse, error) {
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return s.rootCoord.HasCollection(ctx, in)
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}
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func (s *Server) DescribeCollection(ctx context.Context, in *milvuspb.DescribeCollectionRequest) (*milvuspb.DescribeCollectionResponse, error) {
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return s.rootCoord.DescribeCollection(ctx, in)
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}
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func (s *Server) ShowCollections(ctx context.Context, in *milvuspb.ShowCollectionsRequest) (*milvuspb.ShowCollectionsResponse, error) {
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return s.rootCoord.ShowCollections(ctx, in)
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}
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func (s *Server) CreatePartition(ctx context.Context, in *milvuspb.CreatePartitionRequest) (*commonpb.Status, error) {
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return s.rootCoord.CreatePartition(ctx, in)
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}
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func (s *Server) DropPartition(ctx context.Context, in *milvuspb.DropPartitionRequest) (*commonpb.Status, error) {
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return s.rootCoord.DropPartition(ctx, in)
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}
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func (s *Server) HasPartition(ctx context.Context, in *milvuspb.HasPartitionRequest) (*milvuspb.BoolResponse, error) {
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return s.rootCoord.HasPartition(ctx, in)
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}
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func (s *Server) ShowPartitions(ctx context.Context, in *milvuspb.ShowPartitionsRequest) (*milvuspb.ShowPartitionsResponse, error) {
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return s.rootCoord.ShowPartitions(ctx, in)
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}
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// CreateIndex index builder service
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func (s *Server) CreateIndex(ctx context.Context, in *milvuspb.CreateIndexRequest) (*commonpb.Status, error) {
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return s.rootCoord.CreateIndex(ctx, in)
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}
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func (s *Server) DropIndex(ctx context.Context, in *milvuspb.DropIndexRequest) (*commonpb.Status, error) {
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return s.rootCoord.DropIndex(ctx, in)
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}
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func (s *Server) DescribeIndex(ctx context.Context, in *milvuspb.DescribeIndexRequest) (*milvuspb.DescribeIndexResponse, error) {
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return s.rootCoord.DescribeIndex(ctx, in)
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}
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// AllocTimestamp global timestamp allocator
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func (s *Server) AllocTimestamp(ctx context.Context, in *rootcoordpb.AllocTimestampRequest) (*rootcoordpb.AllocTimestampResponse, error) {
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return s.rootCoord.AllocTimestamp(ctx, in)
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}
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func (s *Server) AllocID(ctx context.Context, in *rootcoordpb.AllocIDRequest) (*rootcoordpb.AllocIDResponse, error) {
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return s.rootCoord.AllocID(ctx, in)
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}
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// UpdateChannelTimeTick used to handle ChannelTimeTickMsg
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func (s *Server) UpdateChannelTimeTick(ctx context.Context, in *internalpb.ChannelTimeTickMsg) (*commonpb.Status, error) {
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return s.rootCoord.UpdateChannelTimeTick(ctx, in)
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}
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func (s *Server) DescribeSegment(ctx context.Context, in *milvuspb.DescribeSegmentRequest) (*milvuspb.DescribeSegmentResponse, error) {
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return s.rootCoord.DescribeSegment(ctx, in)
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}
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func (s *Server) ShowSegments(ctx context.Context, in *milvuspb.ShowSegmentsRequest) (*milvuspb.ShowSegmentsResponse, error) {
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return s.rootCoord.ShowSegments(ctx, in)
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}
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func (s *Server) ReleaseDQLMessageStream(ctx context.Context, in *proxypb.ReleaseDQLMessageStreamRequest) (*commonpb.Status, error) {
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return s.rootCoord.ReleaseDQLMessageStream(ctx, in)
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}
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func (s *Server) SegmentFlushCompleted(ctx context.Context, in *datapb.SegmentFlushCompletedMsg) (*commonpb.Status, error) {
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return s.rootCoord.SegmentFlushCompleted(ctx, in)
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}
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func (s *Server) GetMetrics(ctx context.Context, in *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
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return s.rootCoord.GetMetrics(ctx, in)
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}
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