mirror of
https://gitee.com/milvus-io/milvus.git
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261 lines
7.8 KiB
Go
261 lines
7.8 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "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
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package grpcindexnode
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import (
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"context"
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"fmt"
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"io"
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"net"
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"strconv"
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"sync"
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"time"
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clientv3 "go.etcd.io/etcd/client/v3"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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"google.golang.org/grpc/keepalive"
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ot "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
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"github.com/milvus-io/milvus/internal/indexnode"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/proto/commonpb"
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"github.com/milvus-io/milvus/internal/proto/indexpb"
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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/types"
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"github.com/milvus-io/milvus/internal/util/dependency"
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"github.com/milvus-io/milvus/internal/util/etcd"
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"github.com/milvus-io/milvus/internal/util/funcutil"
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"github.com/milvus-io/milvus/internal/util/paramtable"
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"github.com/milvus-io/milvus/internal/util/trace"
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"github.com/milvus-io/milvus/internal/util/typeutil"
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)
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var Params paramtable.GrpcServerConfig
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// Server is the grpc wrapper of IndexNode.
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type Server struct {
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indexnode types.IndexNodeComponent
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grpcServer *grpc.Server
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grpcErrChan chan error
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loopCtx context.Context
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loopCancel func()
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loopWg sync.WaitGroup
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etcdCli *clientv3.Client
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closer io.Closer
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}
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// Run initializes and starts IndexNode's grpc service.
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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("IndexNode 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("IndexNode start done ...")
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return nil
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}
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// startGrpcLoop starts the grep loop of IndexNode component.
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func (s *Server) startGrpcLoop(grpcPort int) {
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defer s.loopWg.Done()
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log.Debug("IndexNode", zap.String("network address", Params.GetAddress()), zap.Int("network 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.Warn("IndexNode", zap.String("GrpcServer:failed to listen", 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.loopCtx)
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defer cancel()
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var kaep = keepalive.EnforcementPolicy{
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MinTime: 5 * time.Second, // If a client pings more than once every 5 seconds, terminate the connection
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PermitWithoutStream: true, // Allow pings even when there are no active streams
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}
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var kasp = keepalive.ServerParameters{
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Time: 60 * time.Second, // Ping the client if it is idle for 60 seconds to ensure the connection is still active
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Timeout: 10 * time.Second, // Wait 10 second for the ping ack before assuming the connection is dead
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}
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opts := trace.GetInterceptorOpts()
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s.grpcServer = grpc.NewServer(
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grpc.KeepaliveEnforcementPolicy(kaep),
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grpc.KeepaliveParams(kasp),
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grpc.MaxRecvMsgSize(Params.ServerMaxRecvSize),
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grpc.MaxSendMsgSize(Params.ServerMaxSendSize),
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grpc.UnaryInterceptor(ot.UnaryServerInterceptor(opts...)),
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grpc.StreamInterceptor(ot.StreamServerInterceptor(opts...)))
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indexpb.RegisterIndexNodeServer(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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// init initializes IndexNode's grpc service.
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func (s *Server) init() error {
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var err error
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Params.InitOnce(typeutil.IndexNodeRole)
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if !funcutil.CheckPortAvailable(Params.Port) {
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Params.Port = funcutil.GetAvailablePort()
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log.Warn("IndexNode get available port when init", zap.Int("Port", Params.Port))
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}
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indexnode.Params.InitOnce()
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indexnode.Params.IndexNodeCfg.Port = Params.Port
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indexnode.Params.IndexNodeCfg.IP = Params.IP
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indexnode.Params.IndexNodeCfg.Address = Params.GetAddress()
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closer := trace.InitTracing(fmt.Sprintf("IndexNode-%d", indexnode.Params.IndexNodeCfg.GetNodeID()))
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s.closer = closer
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defer func() {
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if err != nil {
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err = s.Stop()
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if err != nil {
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log.Error("IndexNode Init failed, and Stop failed")
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}
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}
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}()
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s.loopWg.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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log.Error("IndexNode", zap.Any("grpc error", err))
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return err
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}
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etcdCli, err := etcd.GetEtcdClient(&indexnode.Params.EtcdCfg)
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if err != nil {
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log.Debug("IndexNode connect to etcd failed", zap.Error(err))
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return err
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}
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s.etcdCli = etcdCli
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s.indexnode.SetEtcdClient(etcdCli)
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err = s.indexnode.Init()
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if err != nil {
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log.Error("IndexNode Init failed", 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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// start starts IndexNode's grpc service.
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func (s *Server) start() error {
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err := s.indexnode.Start()
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if err != nil {
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return err
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}
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err = s.indexnode.Register()
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if err != nil {
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log.Error("IndexNode Register etcd failed", zap.Error(err))
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return err
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}
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log.Debug("IndexNode Register etcd success")
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return nil
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}
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// Stop stops IndexNode's grpc service.
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func (s *Server) Stop() error {
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log.Debug("IndexNode stop", zap.String("Address", Params.GetAddress()))
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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.loopCancel()
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if s.indexnode != nil {
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s.indexnode.Stop()
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}
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if s.etcdCli != nil {
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defer s.etcdCli.Close()
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}
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if s.grpcServer != nil {
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log.Debug("Graceful stop grpc server...")
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s.grpcServer.GracefulStop()
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}
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s.loopWg.Wait()
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return nil
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}
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// SetClient sets the IndexNode's instance.
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func (s *Server) SetClient(indexNodeClient types.IndexNodeComponent) error {
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s.indexnode = indexNodeClient
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return nil
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}
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// SetEtcdClient sets the etcd client for QueryNode component.
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func (s *Server) SetEtcdClient(etcdCli *clientv3.Client) {
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s.indexnode.SetEtcdClient(etcdCli)
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}
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// GetComponentStates gets the component states of IndexNode.
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func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
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return s.indexnode.GetComponentStates(ctx)
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}
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// GetTimeTickChannel gets the time tick channel of IndexNode.
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func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
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return s.indexnode.GetTimeTickChannel(ctx)
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}
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// GetStatisticsChannel gets the statistics channel of IndexNode.
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func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
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return s.indexnode.GetStatisticsChannel(ctx)
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}
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// CreateIndex sends the create index request to IndexNode.
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func (s *Server) CreateIndex(ctx context.Context, req *indexpb.CreateIndexRequest) (*commonpb.Status, error) {
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return s.indexnode.CreateIndex(ctx, req)
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}
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// GetMetrics gets the metrics info of IndexNode.
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func (s *Server) GetMetrics(ctx context.Context, request *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
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return s.indexnode.GetMetrics(ctx, request)
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}
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// NewServer create a new IndexNode grpc server.
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func NewServer(ctx context.Context, factory dependency.Factory) (*Server, error) {
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ctx1, cancel := context.WithCancel(ctx)
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node, err := indexnode.NewIndexNode(ctx1, factory)
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if err != nil {
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defer cancel()
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return nil, err
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}
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return &Server{
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loopCtx: ctx1,
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loopCancel: cancel,
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indexnode: node,
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grpcErrChan: make(chan error),
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}, nil
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}
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