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https://gitee.com/milvus-io/milvus.git
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357 lines
11 KiB
Go
357 lines
11 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 grpcquerynode
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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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"github.com/milvus-io/milvus/internal/util/retry"
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"github.com/milvus-io/milvus/internal/types"
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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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grpc_opentracing "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
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isc "github.com/milvus-io/milvus/internal/distributed/indexcoord/client"
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rcc "github.com/milvus-io/milvus/internal/distributed/rootcoord/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/internalpb"
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"github.com/milvus-io/milvus/internal/proto/milvuspb"
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"github.com/milvus-io/milvus/internal/proto/querypb"
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qn "github.com/milvus-io/milvus/internal/querynode"
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"github.com/milvus-io/milvus/internal/util/funcutil"
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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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// UniqueID is an alias for type typeutil.UniqueID, used as a unique identifier for the request.
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type UniqueID = typeutil.UniqueID
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// Server is the grpc server of QueryNode.
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type Server struct {
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querynode types.QueryNodeComponent
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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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grpcErrChan chan error
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grpcServer *grpc.Server
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rootCoord types.RootCoord
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indexCoord types.IndexCoord
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closer io.Closer
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}
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// NewServer create a new QueryNode grpc server.
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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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querynode: qn.NewQueryNode(ctx, factory),
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grpcErrChan: make(chan error),
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}
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return s, nil
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}
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// init initializes QueryNode's grpc service.
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func (s *Server) init() error {
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Params.Init()
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qn.Params.InitOnce()
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qn.Params.QueryNodeIP = Params.IP
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qn.Params.QueryNodePort = int64(Params.Port)
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qn.Params.QueryNodeID = Params.QueryNodeID
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closer := trace.InitTracing(fmt.Sprintf("query_node ip: %s, port: %d", Params.IP, Params.Port))
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s.closer = closer
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log.Debug("QueryNode", zap.Int("port", Params.Port))
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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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// --- RootCoord Client ---
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if s.rootCoord == nil {
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s.rootCoord, err = rcc.NewClient(s.ctx, qn.Params.MetaRootPath, qn.Params.EtcdEndpoints)
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if err != nil {
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log.Debug("QueryNode new RootCoordClient failed", zap.Error(err))
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panic(err)
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}
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}
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if err = s.rootCoord.Init(); err != nil {
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log.Debug("QueryNode RootCoordClient Init failed", zap.Error(err))
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panic(err)
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}
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if err = s.rootCoord.Start(); err != nil {
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log.Debug("QueryNode RootCoordClient Start failed", zap.Error(err))
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panic(err)
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}
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log.Debug("QueryNode start to wait for RootCoord ready")
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err = funcutil.WaitForComponentHealthy(s.ctx, s.rootCoord, "RootCoord", 1000000, time.Millisecond*200)
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if err != nil {
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log.Debug("QueryNode wait for RootCoord ready failed", zap.Error(err))
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panic(err)
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}
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log.Debug("QueryNode report RootCoord is ready")
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if err := s.SetRootCoord(s.rootCoord); err != nil {
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panic(err)
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}
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// --- IndexCoord ---
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if s.indexCoord == nil {
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s.indexCoord, err = isc.NewClient(s.ctx, qn.Params.MetaRootPath, qn.Params.EtcdEndpoints)
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if err != nil {
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log.Debug("QueryNode new IndexCoordClient failed", zap.Error(err))
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panic(err)
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}
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}
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if err := s.indexCoord.Init(); err != nil {
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log.Debug("QueryNode IndexCoordClient Init failed", zap.Error(err))
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panic(err)
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}
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if err := s.indexCoord.Start(); err != nil {
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log.Debug("QueryNode IndexCoordClient Start failed", zap.Error(err))
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panic(err)
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}
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// wait IndexCoord healthy
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log.Debug("QueryNode start to wait for IndexCoord ready")
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err = funcutil.WaitForComponentHealthy(s.ctx, s.indexCoord, "IndexCoord", 1000000, time.Millisecond*200)
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if err != nil {
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log.Debug("QueryNode wait for IndexCoord ready failed", zap.Error(err))
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panic(err)
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}
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log.Debug("QueryNode report IndexCoord is ready")
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if err := s.SetIndexCoord(s.indexCoord); err != nil {
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panic(err)
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}
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s.querynode.UpdateStateCode(internalpb.StateCode_Initializing)
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log.Debug("QueryNode", zap.Any("State", internalpb.StateCode_Initializing))
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if err := s.querynode.Init(); err != nil {
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log.Error("QueryNode init error: ", zap.Error(err))
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return err
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}
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if err := s.querynode.Register(); 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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// start starts QueryNode's grpc service.
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func (s *Server) start() error {
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return s.querynode.Start()
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}
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// startGrpcLoop starts the grpc loop of QueryNode component.
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func (s *Server) startGrpcLoop(grpcPort int) {
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defer s.wg.Done()
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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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var lis net.Listener
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var err error
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err = retry.Do(s.ctx, func() error {
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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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qn.Params.QueryNodePort = int64(lis.Addr().(*net.TCPAddr).Port)
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} else {
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// set port=0 to get next available port
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grpcPort = 0
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}
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return err
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}, retry.Attempts(10))
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if err != nil {
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log.Error("QueryNode 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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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(
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grpc_opentracing.UnaryServerInterceptor(opts...)),
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grpc.StreamInterceptor(
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grpc_opentracing.StreamServerInterceptor(opts...)))
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querypb.RegisterQueryNodeServer(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.Debug("QueryNode Start Grpc Failed!!!!")
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s.grpcErrChan <- err
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}
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}
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// Run initializes and starts QueryNode'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("QueryNode 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("QueryNode start done ...")
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return nil
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}
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// Stop stops QueryNode's grpc service.
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func (s *Server) Stop() error {
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log.Debug("QueryNode stop", zap.String("Address", Params.Address))
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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.querynode.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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// SetRootCoord sets the RootCoord's client for QueryNode component.
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func (s *Server) SetRootCoord(rootCoord types.RootCoord) error {
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return s.querynode.SetRootCoord(rootCoord)
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}
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// SetIndexCoord sets the IndexCoord's client for QueryNode component.
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func (s *Server) SetIndexCoord(indexCoord types.IndexCoord) error {
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return s.querynode.SetIndexCoord(indexCoord)
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}
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// GetTimeTickChannel gets the time tick channel of QueryNode.
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func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
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return s.querynode.GetTimeTickChannel(ctx)
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}
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// GetStatisticsChannel gets the statistics channel of QueryNode.
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func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
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return s.querynode.GetStatisticsChannel(ctx)
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}
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// GetComponentStates gets the component states of QueryNode.
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func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
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// ignore ctx and in
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return s.querynode.GetComponentStates(ctx)
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}
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// AddQueryChannel adds query channel for QueryNode component.
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func (s *Server) AddQueryChannel(ctx context.Context, req *querypb.AddQueryChannelRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.AddQueryChannel(ctx, req)
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}
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// RemoveQueryChannel removes the query channel for QueryNode component.
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func (s *Server) RemoveQueryChannel(ctx context.Context, req *querypb.RemoveQueryChannelRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.RemoveQueryChannel(ctx, req)
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}
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// WatchDmChannels watches the channels about data manipulation.
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func (s *Server) WatchDmChannels(ctx context.Context, req *querypb.WatchDmChannelsRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.WatchDmChannels(ctx, req)
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}
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// WatchDeltaChannels watches the channels about data manipulation.
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func (s *Server) WatchDeltaChannels(ctx context.Context, req *querypb.WatchDeltaChannelsRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.WatchDeltaChannels(ctx, req)
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}
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// LoadSegments loads the segments to search.
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func (s *Server) LoadSegments(ctx context.Context, req *querypb.LoadSegmentsRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.LoadSegments(ctx, req)
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}
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// ReleaseCollection releases the data of the specified collection in QueryNode.
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func (s *Server) ReleaseCollection(ctx context.Context, req *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.ReleaseCollection(ctx, req)
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}
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// ReleasePartitions releases the data of the specified partitions in QueryNode.
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func (s *Server) ReleasePartitions(ctx context.Context, req *querypb.ReleasePartitionsRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.ReleasePartitions(ctx, req)
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}
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// ReleaseSegments releases the data of the specified segments in QueryNode.
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func (s *Server) ReleaseSegments(ctx context.Context, req *querypb.ReleaseSegmentsRequest) (*commonpb.Status, error) {
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// ignore ctx
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return s.querynode.ReleaseSegments(ctx, req)
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}
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// GetSegmentInfo gets the information of the specified segments in QueryNode.
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func (s *Server) GetSegmentInfo(ctx context.Context, req *querypb.GetSegmentInfoRequest) (*querypb.GetSegmentInfoResponse, error) {
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return s.querynode.GetSegmentInfo(ctx, req)
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}
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// GetMetrics gets the metrics information of QueryNode.
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func (s *Server) GetMetrics(ctx context.Context, req *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
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return s.querynode.GetMetrics(ctx, req)
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}
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