mirror of
https://gitee.com/milvus-io/milvus.git
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398 lines
13 KiB
Go
398 lines
13 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 grpcquerycoord
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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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"time"
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ot "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
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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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dcc "github.com/milvus-io/milvus/internal/distributed/datacoord/client"
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icc "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/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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qc "github.com/milvus-io/milvus/internal/querycoord"
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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 server of QueryCoord.
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type Server struct {
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wg sync.WaitGroup
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loopCtx context.Context
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loopCancel context.CancelFunc
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grpcServer *grpc.Server
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grpcErrChan chan error
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queryCoord types.QueryCoordComponent
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factory dependency.Factory
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etcdCli *clientv3.Client
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dataCoord types.DataCoord
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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 QueryCoord 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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svr, err := qc.NewQueryCoord(ctx1, factory)
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if err != nil {
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cancel()
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return nil, err
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}
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return &Server{
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queryCoord: svr,
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loopCtx: ctx1,
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loopCancel: cancel,
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factory: factory,
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grpcErrChan: make(chan error),
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}, nil
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}
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// Run initializes and starts QueryCoord'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("QueryCoord 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("QueryCoord start done ...")
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return nil
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}
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// init initializes QueryCoord's grpc service.
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func (s *Server) init() error {
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Params.InitOnce(typeutil.QueryCoordRole)
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qc.Params.InitOnce()
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qc.Params.QueryCoordCfg.Address = Params.GetAddress()
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qc.Params.QueryCoordCfg.Port = Params.Port
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closer := trace.InitTracing("querycoord")
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s.closer = closer
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etcdCli, err := etcd.GetEtcdClient(&Params.EtcdCfg)
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if err != nil {
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log.Debug("QueryCoord 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.SetEtcdClient(etcdCli)
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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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// --- Master Server Client ---
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if s.rootCoord == nil {
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s.rootCoord, err = rcc.NewClient(s.loopCtx, qc.Params.EtcdCfg.MetaRootPath, s.etcdCli)
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if err != nil {
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log.Debug("QueryCoord try to new RootCoord client 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("QueryCoord 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("QueryCoord RootCoordClient Start failed", zap.Error(err))
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panic(err)
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}
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// wait for master init or healthy
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log.Debug("QueryCoord try to wait for RootCoord ready")
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err = funcutil.WaitForComponentHealthy(s.loopCtx, s.rootCoord, "RootCoord", 1000000, time.Millisecond*200)
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if err != nil {
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log.Debug("QueryCoord wait for RootCoord ready failed", zap.Error(err))
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panic(err)
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}
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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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log.Debug("QueryCoord report RootCoord ready")
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// --- Data service client ---
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if s.dataCoord == nil {
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s.dataCoord, err = dcc.NewClient(s.loopCtx, qc.Params.EtcdCfg.MetaRootPath, s.etcdCli)
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if err != nil {
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log.Debug("QueryCoord try to new DataCoord client 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.dataCoord.Init(); err != nil {
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log.Debug("QueryCoord DataCoordClient Init failed", zap.Error(err))
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panic(err)
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}
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if err = s.dataCoord.Start(); err != nil {
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log.Debug("QueryCoord DataCoordClient Start failed", zap.Error(err))
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panic(err)
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}
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log.Debug("QueryCoord try to wait for DataCoord ready")
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err = funcutil.WaitForComponentHealthy(s.loopCtx, s.dataCoord, "DataCoord", 1000000, time.Millisecond*200)
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if err != nil {
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log.Debug("QueryCoord wait for DataCoord ready failed", zap.Error(err))
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panic(err)
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}
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if err := s.SetDataCoord(s.dataCoord); err != nil {
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panic(err)
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}
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log.Debug("QueryCoord report DataCoord ready")
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// --- IndexCoord ---
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if s.indexCoord == nil {
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s.indexCoord, err = icc.NewClient(s.loopCtx, qc.Params.EtcdCfg.MetaRootPath, s.etcdCli)
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if err != nil {
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log.Debug("QueryCoord try to new IndexCoord client 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("QueryCoord 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("QueryCoord 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("QueryCoord try to wait for IndexCoord ready")
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err = funcutil.WaitForComponentHealthy(s.loopCtx, s.indexCoord, "IndexCoord", 1000000, time.Millisecond*200)
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if err != nil {
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log.Debug("QueryCoord wait for IndexCoord ready failed", zap.Error(err))
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panic(err)
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}
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log.Debug("QueryCoord 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.queryCoord.UpdateStateCode(internalpb.StateCode_Initializing)
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log.Debug("QueryCoord", zap.Any("State", internalpb.StateCode_Initializing))
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if err := s.queryCoord.Init(); 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) 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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log.Debug("network", zap.String("port", strconv.Itoa(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.Debug("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.loopCtx)
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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.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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querypb.RegisterQueryCoordServer(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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// start starts QueryCoord's grpc service.
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func (s *Server) start() error {
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err := s.queryCoord.Start()
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if err != nil {
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return err
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}
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return s.queryCoord.Register()
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}
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// Stop stops QueryCoord's grpc service.
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func (s *Server) Stop() error {
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log.Debug("QueryCoord 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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if s.etcdCli != nil {
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defer s.etcdCli.Close()
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}
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err := s.queryCoord.Stop()
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s.loopCancel()
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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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return err
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}
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// SetRootCoord sets root coordinator's client
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func (s *Server) SetEtcdClient(etcdClient *clientv3.Client) {
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s.queryCoord.SetEtcdClient(etcdClient)
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}
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// SetRootCoord sets the RootCoord's client for QueryCoord component.
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func (s *Server) SetRootCoord(m types.RootCoord) error {
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s.queryCoord.SetRootCoord(m)
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return nil
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}
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// SetDataCoord sets the DataCoord's client for QueryCoord component.
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func (s *Server) SetDataCoord(d types.DataCoord) error {
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s.queryCoord.SetDataCoord(d)
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return nil
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}
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// SetIndexCoord sets the IndexCoord's client for QueryCoord component.
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func (s *Server) SetIndexCoord(d types.IndexCoord) error {
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s.queryCoord.SetIndexCoord(d)
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return nil
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}
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// GetComponentStates gets the component states of QueryCoord.
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func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
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return s.queryCoord.GetComponentStates(ctx)
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}
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// GetTimeTickChannel gets the time tick channel of QueryCoord.
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func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
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return s.queryCoord.GetTimeTickChannel(ctx)
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}
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// GetStatisticsChannel gets the statistics channel of QueryCoord.
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func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
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return s.queryCoord.GetStatisticsChannel(ctx)
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}
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// ShowCollections shows the collections in the QueryCoord.
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func (s *Server) ShowCollections(ctx context.Context, req *querypb.ShowCollectionsRequest) (*querypb.ShowCollectionsResponse, error) {
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return s.queryCoord.ShowCollections(ctx, req)
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}
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// LoadCollection loads the data of the specified collection in QueryCoord.
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func (s *Server) LoadCollection(ctx context.Context, req *querypb.LoadCollectionRequest) (*commonpb.Status, error) {
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return s.queryCoord.LoadCollection(ctx, req)
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}
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// ReleaseCollection releases the data of the specified collection in QueryCoord.
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func (s *Server) ReleaseCollection(ctx context.Context, req *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
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return s.queryCoord.ReleaseCollection(ctx, req)
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}
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// ShowPartitions shows the partitions in the QueryCoord.
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func (s *Server) ShowPartitions(ctx context.Context, req *querypb.ShowPartitionsRequest) (*querypb.ShowPartitionsResponse, error) {
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return s.queryCoord.ShowPartitions(ctx, req)
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}
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// GetPartitionStates gets the states of the specified partition.
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func (s *Server) GetPartitionStates(ctx context.Context, req *querypb.GetPartitionStatesRequest) (*querypb.GetPartitionStatesResponse, error) {
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return s.queryCoord.GetPartitionStates(ctx, req)
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}
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// LoadPartitions loads the data of the specified partition in QueryCoord.
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func (s *Server) LoadPartitions(ctx context.Context, req *querypb.LoadPartitionsRequest) (*commonpb.Status, error) {
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return s.queryCoord.LoadPartitions(ctx, req)
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}
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// ReleasePartitions releases the data of the specified partition in QueryCoord.
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func (s *Server) ReleasePartitions(ctx context.Context, req *querypb.ReleasePartitionsRequest) (*commonpb.Status, error) {
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return s.queryCoord.ReleasePartitions(ctx, req)
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}
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// GetSegmentInfo gets the information of the specified segment from QueryCoord.
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func (s *Server) GetSegmentInfo(ctx context.Context, req *querypb.GetSegmentInfoRequest) (*querypb.GetSegmentInfoResponse, error) {
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return s.queryCoord.GetSegmentInfo(ctx, req)
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}
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// LoadBalance migrate the sealed segments on the source node to the dst nodes
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func (s *Server) LoadBalance(ctx context.Context, req *querypb.LoadBalanceRequest) (*commonpb.Status, error) {
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return s.queryCoord.LoadBalance(ctx, req)
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}
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// GetMetrics gets the metrics information of QueryCoord.
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func (s *Server) GetMetrics(ctx context.Context, req *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
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return s.queryCoord.GetMetrics(ctx, req)
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}
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// GetReplicas returns the shard leaders of a certain collection.
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func (s *Server) GetReplicas(ctx context.Context, req *milvuspb.GetReplicasRequest) (*milvuspb.GetReplicasResponse, error) {
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return s.queryCoord.GetReplicas(ctx, req)
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}
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// GetShardLeaders returns the shard leaders of a certain collection.
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func (s *Server) GetShardLeaders(ctx context.Context, req *querypb.GetShardLeadersRequest) (*querypb.GetShardLeadersResponse, error) {
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return s.queryCoord.GetShardLeaders(ctx, req)
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}
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