milvus/internal/distributed/indexcoord/service.go
Cai Yudong a101d1d3c5
[skip e2e] Unify component import alias (#13765)
Signed-off-by: yudong.cai <yudong.cai@zilliz.com>
2021-12-20 16:43:05 +08:00

244 lines
7.6 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 grpcindexcoord
import (
"context"
"io"
"net"
"strconv"
"sync"
"time"
ot "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
"github.com/milvus-io/milvus/internal/indexcoord"
"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/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"
"go.uber.org/zap"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
)
var Params paramtable.GrpcServerConfig
// UniqueID is an alias of int64, is used as a unique identifier for the request.
type UniqueID = typeutil.UniqueID
// Server is the grpc wrapper of IndexCoord.
type Server struct {
indexcoord types.IndexCoord
grpcServer *grpc.Server
grpcErrChan chan error
loopCtx context.Context
loopCancel func()
loopWg sync.WaitGroup
closer io.Closer
}
// Run initializes and starts IndexCoord's grpc service.
func (s *Server) Run() error {
if err := s.init(); err != nil {
return err
}
log.Debug("IndexCoord init done ...")
if err := s.start(); err != nil {
return err
}
log.Debug("IndexCoord start done ...")
return nil
}
// init initializes IndexCoord's grpc service.
func (s *Server) init() error {
Params.InitOnce(typeutil.IndexCoordRole)
indexcoord.Params.InitOnce()
indexcoord.Params.Address = Params.GetAddress()
indexcoord.Params.Port = Params.Port
closer := trace.InitTracing("IndexCoord")
s.closer = closer
s.loopWg.Add(1)
go s.startGrpcLoop(indexcoord.Params.Port)
// wait for grpc IndexCoord loop start
if err := <-s.grpcErrChan; err != nil {
log.Error("IndexCoord", zap.Any("init error", err))
return err
}
if err := s.indexcoord.Init(); err != nil {
log.Error("IndexCoord", zap.Any("init error", err))
return err
}
return nil
}
// start starts IndexCoord's grpc service.
func (s *Server) start() error {
if err := s.indexcoord.Start(); err != nil {
return err
}
log.Debug("indexCoord started")
if err := s.indexcoord.Register(); err != nil {
log.Error("IndexCoord", zap.Any("register session error", err))
return err
}
log.Debug("IndexCoord registers service successfully")
return nil
}
// Stop stops IndexCoord's grpc service.
func (s *Server) Stop() error {
log.Debug("Indexcoord stop", zap.String("Address", Params.GetAddress()))
if s.closer != nil {
if err := s.closer.Close(); err != nil {
return err
}
}
if s.indexcoord != nil {
s.indexcoord.Stop()
}
s.loopCancel()
if s.grpcServer != nil {
log.Debug("Graceful stop grpc server...")
s.grpcServer.GracefulStop()
}
s.loopWg.Wait()
return nil
}
// SetClient sets the IndexCoord's instance.
func (s *Server) SetClient(indexCoordClient types.IndexCoord) error {
s.indexcoord = indexCoordClient
return nil
}
// GetComponentStates gets the component states of IndexCoord.
func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
return s.indexcoord.GetComponentStates(ctx)
}
// GetTimeTickChannel gets the time tick channel of IndexCoord.
func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
return s.indexcoord.GetTimeTickChannel(ctx)
}
// GetStatisticsChannel gets the statistics channel of IndexCoord.
func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
return s.indexcoord.GetStatisticsChannel(ctx)
}
// BuildIndex sends the build index request to IndexCoord.
func (s *Server) BuildIndex(ctx context.Context, req *indexpb.BuildIndexRequest) (*indexpb.BuildIndexResponse, error) {
return s.indexcoord.BuildIndex(ctx, req)
}
// GetIndexStates gets the index states from IndexCoord.
func (s *Server) GetIndexStates(ctx context.Context, req *indexpb.GetIndexStatesRequest) (*indexpb.GetIndexStatesResponse, error) {
return s.indexcoord.GetIndexStates(ctx, req)
}
// DropIndex sends the drop index request to IndexCoord.
func (s *Server) DropIndex(ctx context.Context, request *indexpb.DropIndexRequest) (*commonpb.Status, error) {
return s.indexcoord.DropIndex(ctx, request)
}
// GetIndexFilePaths gets the index file paths from IndexCoord.
func (s *Server) GetIndexFilePaths(ctx context.Context, req *indexpb.GetIndexFilePathsRequest) (*indexpb.GetIndexFilePathsResponse, error) {
return s.indexcoord.GetIndexFilePaths(ctx, req)
}
// GetMetrics gets the metrics info of IndexCoord.
func (s *Server) GetMetrics(ctx context.Context, request *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
return s.indexcoord.GetMetrics(ctx, request)
}
// startGrpcLoop starts the grep loop of IndexCoord component.
func (s *Server) startGrpcLoop(grpcPort int) {
defer s.loopWg.Done()
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
}
log.Debug("IndexCoord", zap.String("network address", Params.IP), zap.Int("network port", grpcPort))
lis, err := net.Listen("tcp", ":"+strconv.Itoa(grpcPort))
if err != nil {
log.Warn("IndexCoord", zap.String("GrpcServer:failed to listen", err.Error()))
s.grpcErrChan <- err
return
}
ctx, cancel := context.WithCancel(s.loopCtx)
defer cancel()
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.RegisterIndexCoordServer(s.grpcServer, s)
go funcutil.CheckGrpcReady(ctx, s.grpcErrChan)
if err := s.grpcServer.Serve(lis); err != nil {
s.grpcErrChan <- err
}
log.Debug("IndexCoord grpcServer loop exit")
}
// NewServer create a new IndexCoord grpc server.
func NewServer(ctx context.Context) (*Server, error) {
ctx1, cancel := context.WithCancel(ctx)
serverImp, err := indexcoord.NewIndexCoord(ctx)
if err != nil {
defer cancel()
return nil, err
}
s := &Server{
loopCtx: ctx1,
loopCancel: cancel,
indexcoord: serverImp,
grpcErrChan: make(chan error),
}
return s, nil
}