milvus/internal/distributed/indexnode/service.go
cai.zhang 162e053ae4
[skip e2e]Reorder head files for indexnode/service.go (#14727)
Signed-off-by: cai.zhang <cai.zhang@zilliz.com>
2022-01-04 10:53:18 +08:00

256 lines
7.5 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 grpcindexnode
import (
"context"
"fmt"
"io"
"net"
"strconv"
"sync"
"time"
clientv3 "go.etcd.io/etcd/client/v3"
"go.uber.org/zap"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
ot "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
"github.com/milvus-io/milvus/internal/indexnode"
"github.com/milvus-io/milvus/internal/log"
"github.com/milvus-io/milvus/internal/proto/commonpb"
"github.com/milvus-io/milvus/internal/proto/indexpb"
"github.com/milvus-io/milvus/internal/proto/internalpb"
"github.com/milvus-io/milvus/internal/proto/milvuspb"
"github.com/milvus-io/milvus/internal/types"
"github.com/milvus-io/milvus/internal/util/etcd"
"github.com/milvus-io/milvus/internal/util/funcutil"
"github.com/milvus-io/milvus/internal/util/paramtable"
"github.com/milvus-io/milvus/internal/util/trace"
"github.com/milvus-io/milvus/internal/util/typeutil"
)
var Params paramtable.GrpcServerConfig
// Server is the grpc wrapper of IndexNode.
type Server struct {
indexnode types.IndexNodeComponent
grpcServer *grpc.Server
grpcErrChan chan error
loopCtx context.Context
loopCancel func()
loopWg sync.WaitGroup
etcdCli *clientv3.Client
closer io.Closer
}
// Run initializes and starts IndexNode's grpc service.
func (s *Server) Run() error {
if err := s.init(); err != nil {
return err
}
log.Debug("IndexNode init done ...")
if err := s.start(); err != nil {
return err
}
log.Debug("IndexNode start done ...")
return nil
}
// startGrpcLoop starts the grep loop of IndexNode component.
func (s *Server) startGrpcLoop(grpcPort int) {
defer s.loopWg.Done()
log.Debug("IndexNode", zap.String("network address", Params.GetAddress()), zap.Int("network port: ", grpcPort))
lis, err := net.Listen("tcp", ":"+strconv.Itoa(grpcPort))
if err != nil {
log.Warn("IndexNode", zap.String("GrpcServer:failed to listen", err.Error()))
s.grpcErrChan <- err
return
}
ctx, cancel := context.WithCancel(s.loopCtx)
defer cancel()
var kaep = keepalive.EnforcementPolicy{
MinTime: 5 * time.Second, // If a client pings more than once every 5 seconds, terminate the connection
PermitWithoutStream: true, // Allow pings even when there are no active streams
}
var kasp = keepalive.ServerParameters{
Time: 60 * time.Second, // Ping the client if it is idle for 60 seconds to ensure the connection is still active
Timeout: 10 * time.Second, // Wait 10 second for the ping ack before assuming the connection is dead
}
opts := trace.GetInterceptorOpts()
s.grpcServer = grpc.NewServer(
grpc.KeepaliveEnforcementPolicy(kaep),
grpc.KeepaliveParams(kasp),
grpc.MaxRecvMsgSize(Params.ServerMaxRecvSize),
grpc.MaxSendMsgSize(Params.ServerMaxSendSize),
grpc.UnaryInterceptor(ot.UnaryServerInterceptor(opts...)),
grpc.StreamInterceptor(ot.StreamServerInterceptor(opts...)))
indexpb.RegisterIndexNodeServer(s.grpcServer, s)
go funcutil.CheckGrpcReady(ctx, s.grpcErrChan)
if err := s.grpcServer.Serve(lis); err != nil {
s.grpcErrChan <- err
}
}
// init initializes IndexNode's grpc service.
func (s *Server) init() error {
var err error
Params.InitOnce(typeutil.IndexNodeRole)
indexnode.Params.InitOnce()
indexnode.Params.IndexNodeCfg.Port = Params.Port
indexnode.Params.IndexNodeCfg.IP = Params.IP
indexnode.Params.IndexNodeCfg.Address = Params.GetAddress()
closer := trace.InitTracing(fmt.Sprintf("IndexNode-%d", indexnode.Params.IndexNodeCfg.NodeID))
s.closer = closer
defer func() {
if err != nil {
err = s.Stop()
if err != nil {
log.Error("IndexNode Init failed, and Stop failed")
}
}
}()
s.loopWg.Add(1)
go s.startGrpcLoop(Params.Port)
// wait for grpc server loop start
err = <-s.grpcErrChan
if err != nil {
log.Error("IndexNode", zap.Any("grpc error", err))
return err
}
etcdCli, err := etcd.GetEtcdClient(&indexnode.Params.BaseParams)
if err != nil {
log.Debug("IndexNode connect to etcd failed", zap.Error(err))
return err
}
s.etcdCli = etcdCli
s.indexnode.SetEtcdClient(etcdCli)
err = s.indexnode.Init()
if err != nil {
log.Error("IndexNode Init failed", zap.Error(err))
return err
}
return nil
}
// start starts IndexNode's grpc service.
func (s *Server) start() error {
err := s.indexnode.Start()
if err != nil {
return err
}
err = s.indexnode.Register()
if err != nil {
log.Error("IndexNode Register etcd failed", zap.Error(err))
return err
}
log.Debug("IndexNode Register etcd success")
return nil
}
// Stop stops IndexNode's grpc service.
func (s *Server) Stop() error {
log.Debug("IndexNode stop", zap.String("Address", Params.GetAddress()))
if s.closer != nil {
if err := s.closer.Close(); err != nil {
return err
}
}
s.loopCancel()
if s.indexnode != nil {
s.indexnode.Stop()
}
if s.etcdCli != nil {
defer s.etcdCli.Close()
}
if s.grpcServer != nil {
log.Debug("Graceful stop grpc server...")
s.grpcServer.GracefulStop()
}
s.loopWg.Wait()
return nil
}
// SetClient sets the IndexNode's instance.
func (s *Server) SetClient(indexNodeClient types.IndexNodeComponent) error {
s.indexnode = indexNodeClient
return nil
}
// SetEtcdClient sets the etcd client for QueryNode component.
func (s *Server) SetEtcdClient(etcdCli *clientv3.Client) {
s.indexnode.SetEtcdClient(etcdCli)
}
// GetComponentStates gets the component states of IndexNode.
func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
return s.indexnode.GetComponentStates(ctx)
}
// GetTimeTickChannel gets the time tick channel of IndexNode.
func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
return s.indexnode.GetTimeTickChannel(ctx)
}
// GetStatisticsChannel gets the statistics channel of IndexNode.
func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
return s.indexnode.GetStatisticsChannel(ctx)
}
// CreateIndex sends the create index request to IndexNode.
func (s *Server) CreateIndex(ctx context.Context, req *indexpb.CreateIndexRequest) (*commonpb.Status, error) {
return s.indexnode.CreateIndex(ctx, req)
}
// GetMetrics gets the metrics info of IndexNode.
func (s *Server) GetMetrics(ctx context.Context, request *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
return s.indexnode.GetMetrics(ctx, request)
}
// NewServer create a new IndexNode grpc server.
func NewServer(ctx context.Context) (*Server, error) {
ctx1, cancel := context.WithCancel(ctx)
node, err := indexnode.NewIndexNode(ctx1)
if err != nil {
defer cancel()
return nil, err
}
return &Server{
loopCtx: ctx1,
loopCancel: cancel,
indexnode: node,
grpcErrChan: make(chan error),
}, nil
}