milvus/internal/distributed/datacoord/service.go

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// 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 grpcdatacoord implements grpc server for datacoord
package grpcdatacoord
import (
"context"
"io"
"net"
"strconv"
"sync"
"time"
ot "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/milvus-io/milvus/internal/datacoord"
"github.com/milvus-io/milvus/internal/log"
"github.com/milvus-io/milvus/internal/msgstream"
"github.com/milvus-io/milvus/internal/proto/commonpb"
"github.com/milvus-io/milvus/internal/proto/datapb"
"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/logutil"
"github.com/milvus-io/milvus/internal/util/paramtable"
"github.com/milvus-io/milvus/internal/util/trace"
"github.com/milvus-io/milvus/internal/util/typeutil"
clientv3 "go.etcd.io/etcd/client/v3"
"go.uber.org/zap"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
)
// Params is the parameters for DataCoord grpc server
var Params paramtable.GrpcServerConfig
// Server is the grpc server of datacoord
type Server struct {
ctx context.Context
cancel context.CancelFunc
wg sync.WaitGroup
dataCoord types.DataCoordComponent
etcdCli *clientv3.Client
grpcErrChan chan error
grpcServer *grpc.Server
closer io.Closer
}
// NewServer new data service grpc server
func NewServer(ctx context.Context, factory msgstream.Factory, opts ...datacoord.Option) *Server {
ctx1, cancel := context.WithCancel(ctx)
s := &Server{
ctx: ctx1,
cancel: cancel,
grpcErrChan: make(chan error),
}
s.dataCoord = datacoord.CreateServer(s.ctx, factory, opts...)
return s
}
func (s *Server) init() error {
Params.InitOnce(typeutil.DataCoordRole)
closer := trace.InitTracing("datacoord")
s.closer = closer
datacoord.Params.InitOnce()
datacoord.Params.DataCoordCfg.IP = Params.IP
datacoord.Params.DataCoordCfg.Port = Params.Port
datacoord.Params.DataCoordCfg.Address = Params.GetAddress()
etcdCli, err := etcd.GetEtcdClient(&datacoord.Params.EtcdCfg)
if err != nil {
log.Debug("DataCoord connect to etcd failed", zap.Error(err))
return err
}
s.etcdCli = etcdCli
s.dataCoord.SetEtcdClient(etcdCli)
err = s.startGrpc()
if err != nil {
log.Debug("DataCoord startGrpc failed", zap.Error(err))
return err
}
if err := s.dataCoord.Init(); err != nil {
log.Error("dataCoord init error", zap.Error(err))
return err
}
return nil
}
func (s *Server) startGrpc() error {
s.wg.Add(1)
go s.startGrpcLoop(Params.Port)
// wait for grpc server loop start
err := <-s.grpcErrChan
return err
}
func (s *Server) startGrpcLoop(grpcPort int) {
defer logutil.LogPanic()
defer s.wg.Done()
log.Debug("network port", zap.Int("port", grpcPort))
lis, err := net.Listen("tcp", ":"+strconv.Itoa(grpcPort))
if err != nil {
log.Error("grpc server failed to listen error", zap.Error(err))
s.grpcErrChan <- err
return
}
ctx, cancel := context.WithCancel(s.ctx)
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...)))
//grpc.UnaryInterceptor(grpc_prometheus.UnaryServerInterceptor))
datapb.RegisterDataCoordServer(s.grpcServer, s)
grpc_prometheus.Register(s.grpcServer)
go funcutil.CheckGrpcReady(ctx, s.grpcErrChan)
if err := s.grpcServer.Serve(lis); err != nil {
s.grpcErrChan <- err
}
}
func (s *Server) start() error {
err := s.dataCoord.Start()
if err != nil {
log.Error("DataCoord start failed", zap.Error(err))
return err
}
err = s.dataCoord.Register()
if err != nil {
log.Debug("DataCoord register service failed", zap.Error(err))
return err
}
return nil
}
// Stop stops the DataCoord server gracefully.
// Need to call the GracefulStop interface of grpc server and call the stop method of the inner DataCoord object.
func (s *Server) Stop() error {
log.Debug("Datacoord stop", zap.String("Address", Params.GetAddress()))
var err error
if s.closer != nil {
if err = s.closer.Close(); err != nil {
return err
}
}
s.cancel()
if s.etcdCli != nil {
defer s.etcdCli.Close()
}
if s.grpcServer != nil {
log.Debug("Graceful stop grpc server...")
s.grpcServer.GracefulStop()
}
err = s.dataCoord.Stop()
if err != nil {
return err
}
s.wg.Wait()
return nil
}
// Run starts the Server. Need to call inner init and start method.
func (s *Server) Run() error {
if err := s.init(); err != nil {
return err
}
log.Debug("DataCoord init done ...")
if err := s.start(); err != nil {
return err
}
log.Debug("DataCoord start done ...")
return nil
}
// GetComponentStates gets states of datacoord and datanodes
func (s *Server) GetComponentStates(ctx context.Context, req *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error) {
return s.dataCoord.GetComponentStates(ctx)
}
// GetTimeTickChannel gets timetick channel
func (s *Server) GetTimeTickChannel(ctx context.Context, req *internalpb.GetTimeTickChannelRequest) (*milvuspb.StringResponse, error) {
return s.dataCoord.GetTimeTickChannel(ctx)
}
// GetStatisticsChannel gets statistics channel
func (s *Server) GetStatisticsChannel(ctx context.Context, req *internalpb.GetStatisticsChannelRequest) (*milvuspb.StringResponse, error) {
return s.dataCoord.GetStatisticsChannel(ctx)
}
// GetSegmentInfo gets segment information according to segment id
func (s *Server) GetSegmentInfo(ctx context.Context, req *datapb.GetSegmentInfoRequest) (*datapb.GetSegmentInfoResponse, error) {
return s.dataCoord.GetSegmentInfo(ctx, req)
}
// Flush flushes a collection's data
func (s *Server) Flush(ctx context.Context, req *datapb.FlushRequest) (*datapb.FlushResponse, error) {
return s.dataCoord.Flush(ctx, req)
}
// AssignSegmentID requests to allocate segment space for insert
func (s *Server) AssignSegmentID(ctx context.Context, req *datapb.AssignSegmentIDRequest) (*datapb.AssignSegmentIDResponse, error) {
return s.dataCoord.AssignSegmentID(ctx, req)
}
// GetSegmentStates gets states of segments
func (s *Server) GetSegmentStates(ctx context.Context, req *datapb.GetSegmentStatesRequest) (*datapb.GetSegmentStatesResponse, error) {
return s.dataCoord.GetSegmentStates(ctx, req)
}
// GetInsertBinlogPaths gets insert binlog paths of a segment
func (s *Server) GetInsertBinlogPaths(ctx context.Context, req *datapb.GetInsertBinlogPathsRequest) (*datapb.GetInsertBinlogPathsResponse, error) {
return s.dataCoord.GetInsertBinlogPaths(ctx, req)
}
// GetCollectionStatistics gets statistics of a collection
func (s *Server) GetCollectionStatistics(ctx context.Context, req *datapb.GetCollectionStatisticsRequest) (*datapb.GetCollectionStatisticsResponse, error) {
return s.dataCoord.GetCollectionStatistics(ctx, req)
}
// GetPartitionStatistics gets statistics of a partition
func (s *Server) GetPartitionStatistics(ctx context.Context, req *datapb.GetPartitionStatisticsRequest) (*datapb.GetPartitionStatisticsResponse, error) {
return s.dataCoord.GetPartitionStatistics(ctx, req)
}
// GetSegmentInfoChannel gets channel to which datacoord sends segment information
func (s *Server) GetSegmentInfoChannel(ctx context.Context, req *datapb.GetSegmentInfoChannelRequest) (*milvuspb.StringResponse, error) {
return s.dataCoord.GetSegmentInfoChannel(ctx)
}
// SaveBinlogPaths implement DataCoordServer, saves segment, collection binlog according to datanode request
func (s *Server) SaveBinlogPaths(ctx context.Context, req *datapb.SaveBinlogPathsRequest) (*commonpb.Status, error) {
return s.dataCoord.SaveBinlogPaths(ctx, req)
}
// GetRecoveryInfo gets information for recovering channels
func (s *Server) GetRecoveryInfo(ctx context.Context, req *datapb.GetRecoveryInfoRequest) (*datapb.GetRecoveryInfoResponse, error) {
return s.dataCoord.GetRecoveryInfo(ctx, req)
}
// GetFlushedSegments get all flushed segments of a partition
func (s *Server) GetFlushedSegments(ctx context.Context, req *datapb.GetFlushedSegmentsRequest) (*datapb.GetFlushedSegmentsResponse, error) {
return s.dataCoord.GetFlushedSegments(ctx, req)
}
// GetMetrics gets metrics of data coordinator and datanodes
func (s *Server) GetMetrics(ctx context.Context, req *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
return s.dataCoord.GetMetrics(ctx, req)
}
// CompleteCompaction completes a compaction with the result
func (s *Server) CompleteCompaction(ctx context.Context, req *datapb.CompactionResult) (*commonpb.Status, error) {
return s.dataCoord.CompleteCompaction(ctx, req)
}
// ManualCompaction triggers a compaction for a collection
func (s *Server) ManualCompaction(ctx context.Context, req *milvuspb.ManualCompactionRequest) (*milvuspb.ManualCompactionResponse, error) {
return s.dataCoord.ManualCompaction(ctx, req)
}
// GetCompactionState gets the state of a compaction
func (s *Server) GetCompactionState(ctx context.Context, req *milvuspb.GetCompactionStateRequest) (*milvuspb.GetCompactionStateResponse, error) {
return s.dataCoord.GetCompactionState(ctx, req)
}
// GetCompactionStateWithPlans gets the state of a compaction by plan
func (s *Server) GetCompactionStateWithPlans(ctx context.Context, req *milvuspb.GetCompactionPlansRequest) (*milvuspb.GetCompactionPlansResponse, error) {
return s.dataCoord.GetCompactionStateWithPlans(ctx, req)
}
// WatchChannels starts watch channels by give request
func (s *Server) WatchChannels(ctx context.Context, req *datapb.WatchChannelsRequest) (*datapb.WatchChannelsResponse, error) {
return s.dataCoord.WatchChannels(ctx, req)
}
// GetFlushState gets the flush state of multiple segments
func (s *Server) GetFlushState(ctx context.Context, req *milvuspb.GetFlushStateRequest) (*milvuspb.GetFlushStateResponse, error) {
return s.dataCoord.GetFlushState(ctx, req)
}
// DropVirtualChannel drop virtual channel in datacoord
func (s *Server) DropVirtualChannel(ctx context.Context, req *datapb.DropVirtualChannelRequest) (*datapb.DropVirtualChannelResponse, error) {
return s.dataCoord.DropVirtualChannel(ctx, req)
}