mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-05 05:18:52 +08:00
546 lines
17 KiB
Go
546 lines
17 KiB
Go
package datacoord
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import (
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"context"
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"fmt"
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"strconv"
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"sync/atomic"
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"github.com/milvus-io/milvus/internal/util/trace"
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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/datapb"
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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/util/metricsinfo"
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"go.uber.org/zap"
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)
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// checks whether server in Healthy State
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func (s *Server) isClosed() bool {
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return atomic.LoadInt64(&s.isServing) != ServerStateHealthy
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}
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// GetTimeTickChannel legacy API, returns time tick channel name
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func (s *Server) GetTimeTickChannel(ctx context.Context) (*milvuspb.StringResponse, error) {
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return &milvuspb.StringResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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},
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Value: Params.TimeTickChannelName,
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}, nil
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}
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// GetStatisticsChannel legacy API, returns statistics channel name
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func (s *Server) GetStatisticsChannel(ctx context.Context) (*milvuspb.StringResponse, error) {
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return &milvuspb.StringResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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},
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Value: Params.StatisticsChannelName,
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}, nil
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}
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// Flush notify segment to flush
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// this api only guarantees all the segments requested is sealed
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// these segments will be flushed only after the Flush policy is fulfilled
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func (s *Server) Flush(ctx context.Context, req *datapb.FlushRequest) (*datapb.FlushResponse, error) {
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log.Debug("receive flush request", zap.Int64("dbID", req.GetDbID()), zap.Int64("collectionID", req.GetCollectionID()))
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sp, ctx := trace.StartSpanFromContextWithOperationName(ctx, "DataCoord-Flush")
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defer sp.Finish()
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resp := &datapb.FlushResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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Reason: "",
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},
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DbID: 0,
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CollectionID: 0,
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SegmentIDs: []int64{},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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sealedSegments, err := s.segmentManager.SealAllSegments(ctx, req.CollectionID)
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if err != nil {
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resp.Status.Reason = fmt.Sprintf("failed to flush %d, %s", req.CollectionID, err)
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return resp, nil
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}
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log.Debug("flush response with segments", zap.Any("segments", sealedSegments))
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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resp.DbID = req.GetDbID()
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resp.CollectionID = req.GetCollectionID()
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resp.SegmentIDs = sealedSegments
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return resp, nil
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}
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// AssignSegmentID applies for segment ids and make allocation for records
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func (s *Server) AssignSegmentID(ctx context.Context, req *datapb.AssignSegmentIDRequest) (*datapb.AssignSegmentIDResponse, error) {
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if s.isClosed() {
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return &datapb.AssignSegmentIDResponse{
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Status: &commonpb.Status{
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Reason: serverNotServingErrMsg,
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}, nil
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}
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assigns := make([]*datapb.SegmentIDAssignment, 0, len(req.SegmentIDRequests))
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for _, r := range req.SegmentIDRequests {
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log.Debug("handle assign segment request",
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zap.Int64("collectionID", r.GetCollectionID()),
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zap.Int64("partitionID", r.GetPartitionID()),
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zap.String("channelName", r.GetChannelName()),
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zap.Uint32("count", r.GetCount()))
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if coll := s.meta.GetCollection(r.CollectionID); coll == nil {
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if err := s.loadCollectionFromRootCoord(ctx, r.CollectionID); err != nil {
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log.Error("load collection from rootcoord error",
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zap.Int64("collectionID", r.CollectionID),
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zap.Error(err))
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continue
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}
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}
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s.cluster.Watch(r.ChannelName, r.CollectionID)
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allocations, err := s.segmentManager.AllocSegment(ctx,
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r.CollectionID, r.PartitionID, r.ChannelName, int64(r.Count))
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if err != nil {
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log.Warn("failed to alloc segment", zap.Any("request", r), zap.Error(err))
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continue
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}
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log.Debug("Assign segment success", zap.Any("assignments", allocations))
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for _, allocation := range allocations {
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result := &datapb.SegmentIDAssignment{
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SegID: allocation.SegmentID,
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ChannelName: r.ChannelName,
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Count: uint32(allocation.NumOfRows),
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CollectionID: r.CollectionID,
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PartitionID: r.PartitionID,
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ExpireTime: allocation.ExpireTime,
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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Reason: "",
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},
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}
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assigns = append(assigns, result)
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}
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}
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return &datapb.AssignSegmentIDResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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},
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SegIDAssignments: assigns,
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}, nil
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}
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// GetSegmentStates returns segments state
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func (s *Server) GetSegmentStates(ctx context.Context, req *datapb.GetSegmentStatesRequest) (*datapb.GetSegmentStatesResponse, error) {
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resp := &datapb.GetSegmentStatesResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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for _, segmentID := range req.SegmentIDs {
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state := &datapb.SegmentStateInfo{
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Status: &commonpb.Status{},
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SegmentID: segmentID,
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}
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segmentInfo := s.meta.GetSegment(segmentID)
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if segmentInfo == nil {
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state.Status.ErrorCode = commonpb.ErrorCode_UnexpectedError
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state.Status.Reason = fmt.Sprintf("failed to get segment %d", segmentID)
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} else {
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state.Status.ErrorCode = commonpb.ErrorCode_Success
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state.State = segmentInfo.GetState()
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state.StartPosition = segmentInfo.GetStartPosition()
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}
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resp.States = append(resp.States, state)
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}
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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return resp, nil
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}
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// GetInsertBinlogPaths returns binlog paths info for requested segments
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func (s *Server) GetInsertBinlogPaths(ctx context.Context, req *datapb.GetInsertBinlogPathsRequest) (*datapb.GetInsertBinlogPathsResponse, error) {
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resp := &datapb.GetInsertBinlogPathsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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segment := s.meta.GetSegment(req.GetSegmentID())
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if segment == nil {
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resp.Status.Reason = "segment not found"
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return resp, nil
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}
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binlogs := segment.GetBinlogs()
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fids := make([]UniqueID, 0, len(binlogs))
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paths := make([]*internalpb.StringList, 0, len(binlogs))
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for _, field := range binlogs {
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fids = append(fids, field.GetFieldID())
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paths = append(paths, &internalpb.StringList{Values: field.GetBinlogs()})
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}
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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resp.FieldIDs = fids
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resp.Paths = paths
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return resp, nil
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}
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// GetCollectionStatistics returns statistics for collection
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// for now only row count is returned
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func (s *Server) GetCollectionStatistics(ctx context.Context, req *datapb.GetCollectionStatisticsRequest) (*datapb.GetCollectionStatisticsResponse, error) {
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resp := &datapb.GetCollectionStatisticsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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nums := s.meta.GetNumRowsOfCollection(req.CollectionID)
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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resp.Stats = append(resp.Stats, &commonpb.KeyValuePair{Key: "row_count", Value: strconv.FormatInt(nums, 10)})
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return resp, nil
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}
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// GetPartitionStatistics return statistics for parition
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// for now only row count is returned
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func (s *Server) GetPartitionStatistics(ctx context.Context, req *datapb.GetPartitionStatisticsRequest) (*datapb.GetPartitionStatisticsResponse, error) {
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resp := &datapb.GetPartitionStatisticsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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nums := s.meta.GetNumRowsOfPartition(req.CollectionID, req.PartitionID)
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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resp.Stats = append(resp.Stats, &commonpb.KeyValuePair{Key: "row_count", Value: strconv.FormatInt(nums, 10)})
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return resp, nil
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}
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// GetSegmentInfoChannel legacy API, returns segment info statistics channel
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func (s *Server) GetSegmentInfoChannel(ctx context.Context) (*milvuspb.StringResponse, error) {
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return &milvuspb.StringResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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},
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Value: Params.SegmentInfoChannelName,
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}, nil
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}
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// GetSegmentInfo returns segment info requested, status, row count, etc included
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func (s *Server) GetSegmentInfo(ctx context.Context, req *datapb.GetSegmentInfoRequest) (*datapb.GetSegmentInfoResponse, error) {
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resp := &datapb.GetSegmentInfoResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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infos := make([]*datapb.SegmentInfo, 0, len(req.SegmentIDs))
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for _, id := range req.SegmentIDs {
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info := s.meta.GetSegment(id)
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if info == nil {
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resp.Status.Reason = fmt.Sprintf("failed to get segment %d", id)
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return resp, nil
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}
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infos = append(infos, info.SegmentInfo)
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}
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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resp.Infos = infos
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return resp, nil
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}
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// SaveBinlogPaths update segment related binlog path
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// works for Checkpoints and Flush
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func (s *Server) SaveBinlogPaths(ctx context.Context, req *datapb.SaveBinlogPathsRequest) (*commonpb.Status, error) {
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resp := &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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}
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if s.isClosed() {
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resp.Reason = serverNotServingErrMsg
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return resp, nil
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}
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log.Debug("receive SaveBinlogPaths request",
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zap.Int64("collectionID", req.GetCollectionID()),
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zap.Int64("segmentID", req.GetSegmentID()),
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zap.Any("checkpoints", req.GetCheckPoints()))
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// set segment to SegmentState_Flushing and save binlogs and checkpoints
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err := s.meta.UpdateFlushSegmentsInfo(req.GetSegmentID(), req.GetFlushed(),
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req.GetField2BinlogPaths(), req.GetCheckPoints(), req.GetStartPositions())
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if err != nil {
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log.Error("save binlog and checkpoints failed",
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zap.Int64("segmentID", req.GetSegmentID()),
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zap.Error(err))
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resp.Reason = err.Error()
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return resp, nil
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}
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log.Debug("flush segment with meta", zap.Int64("id", req.SegmentID),
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zap.Any("meta", req.GetField2BinlogPaths()))
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if req.Flushed {
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s.segmentManager.DropSegment(ctx, req.SegmentID)
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s.flushCh <- req.SegmentID
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}
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resp.ErrorCode = commonpb.ErrorCode_Success
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return resp, nil
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}
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// GetComponentStates returns DataCoord's current state
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func (s *Server) GetComponentStates(ctx context.Context) (*internalpb.ComponentStates, error) {
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resp := &internalpb.ComponentStates{
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State: &internalpb.ComponentInfo{
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NodeID: Params.NodeID,
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Role: "datacoord",
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StateCode: 0,
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},
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_Success,
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Reason: "",
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},
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}
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state := atomic.LoadInt64(&s.isServing)
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switch state {
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case ServerStateInitializing:
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resp.State.StateCode = internalpb.StateCode_Initializing
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case ServerStateHealthy:
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resp.State.StateCode = internalpb.StateCode_Healthy
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default:
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resp.State.StateCode = internalpb.StateCode_Abnormal
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}
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return resp, nil
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}
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// GetRecoveryInfo get recovery info for segment
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func (s *Server) GetRecoveryInfo(ctx context.Context, req *datapb.GetRecoveryInfoRequest) (*datapb.GetRecoveryInfoResponse, error) {
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collectionID := req.GetCollectionID()
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partitionID := req.GetPartitionID()
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log.Info("receive get recovery info request",
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zap.Int64("collectionID", collectionID),
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zap.Int64("partitionID", partitionID))
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resp := &datapb.GetRecoveryInfoResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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segmentIDs := s.meta.GetSegmentsOfPartition(collectionID, partitionID)
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segment2Binlogs := make(map[UniqueID][]*datapb.FieldBinlog)
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segmentsNumOfRows := make(map[UniqueID]int64)
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for _, id := range segmentIDs {
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segment := s.meta.GetSegment(id)
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if segment == nil {
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errMsg := fmt.Sprintf("failed to get segment %d", id)
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log.Error(errMsg)
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resp.Status.Reason = errMsg
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return resp, nil
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}
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if segment.State != commonpb.SegmentState_Flushed && segment.State != commonpb.SegmentState_Flushing {
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continue
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}
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binlogs := segment.GetBinlogs()
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field2Binlog := make(map[UniqueID][]string)
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for _, field := range binlogs {
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field2Binlog[field.GetFieldID()] = append(field2Binlog[field.GetFieldID()], field.GetBinlogs()...)
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}
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for f, paths := range field2Binlog {
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fieldBinlogs := &datapb.FieldBinlog{
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FieldID: f,
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Binlogs: paths,
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}
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segment2Binlogs[id] = append(segment2Binlogs[id], fieldBinlogs)
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}
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segmentsNumOfRows[id] = segment.NumOfRows
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}
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binlogs := make([]*datapb.SegmentBinlogs, 0, len(segment2Binlogs))
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for segmentID, fieldBinlogs := range segment2Binlogs {
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sbl := &datapb.SegmentBinlogs{
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SegmentID: segmentID,
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NumOfRows: segmentsNumOfRows[segmentID],
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FieldBinlogs: fieldBinlogs,
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}
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binlogs = append(binlogs, sbl)
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}
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dresp, err := s.rootCoordClient.DescribeCollection(s.ctx, &milvuspb.DescribeCollectionRequest{
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Base: &commonpb.MsgBase{
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MsgType: commonpb.MsgType_DescribeCollection,
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SourceID: Params.NodeID,
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},
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CollectionID: collectionID,
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})
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if err = VerifyResponse(dresp, err); err != nil {
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log.Error("get collection info from master failed",
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zap.Int64("collectionID", collectionID),
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zap.Error(err))
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resp.Status.Reason = err.Error()
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return resp, nil
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}
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channels := dresp.GetVirtualChannelNames()
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vchans := make([]vchannel, 0, len(channels))
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for _, c := range channels {
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vchans = append(vchans, vchannel{
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CollectionID: collectionID,
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DmlChannel: c,
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})
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}
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channelInfos, err := s.GetVChanPositions(vchans, false)
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if err != nil {
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log.Error("get channel positions failed",
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zap.Strings("channels", channels),
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zap.Error(err))
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resp.Status.Reason = err.Error()
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return resp, nil
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}
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resp.Binlogs = binlogs
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resp.Channels = channelInfos
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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return resp, nil
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}
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// GetFlushedSegments returns all segment matches provided criterion and in State Flushed
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// If requested partition id < 0, ignores the partition id filter
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func (s *Server) GetFlushedSegments(ctx context.Context, req *datapb.GetFlushedSegmentsRequest) (*datapb.GetFlushedSegmentsResponse, error) {
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resp := &datapb.GetFlushedSegmentsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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},
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}
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collectionID := req.GetCollectionID()
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partitionID := req.GetPartitionID()
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log.Debug("GetFlushedSegment",
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zap.Int64("collectionID", collectionID),
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zap.Int64("partitionID", partitionID))
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if s.isClosed() {
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resp.Status.Reason = serverNotServingErrMsg
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return resp, nil
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}
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var segmentIDs []UniqueID
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if partitionID < 0 {
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segmentIDs = s.meta.GetSegmentsOfCollection(collectionID)
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} else {
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segmentIDs = s.meta.GetSegmentsOfPartition(collectionID, partitionID)
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}
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ret := make([]UniqueID, 0, len(segmentIDs))
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for _, id := range segmentIDs {
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s := s.meta.GetSegment(id)
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if s == nil || s.GetState() != commonpb.SegmentState_Flushed {
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continue
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}
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ret = append(ret, id)
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}
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resp.Segments = ret
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resp.Status.ErrorCode = commonpb.ErrorCode_Success
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return resp, nil
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}
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// GetMetrics returns DataCoord metrics info
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// it may include SystemMetrics, Topology metrics, etc.
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func (s *Server) GetMetrics(ctx context.Context, req *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) {
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log.Debug("DataCoord.GetMetrics",
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zap.Int64("node_id", Params.NodeID),
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zap.String("req", req.Request))
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if s.isClosed() {
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log.Warn("DataCoord.GetMetrics failed",
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zap.Int64("node_id", Params.NodeID),
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zap.String("req", req.Request),
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zap.Error(errDataCoordIsUnhealthy(Params.NodeID)))
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|
|
return &milvuspb.GetMetricsResponse{
|
|
Status: &commonpb.Status{
|
|
ErrorCode: commonpb.ErrorCode_UnexpectedError,
|
|
Reason: msgDataCoordIsUnhealthy(Params.NodeID),
|
|
},
|
|
Response: "",
|
|
}, nil
|
|
}
|
|
|
|
metricType, err := metricsinfo.ParseMetricType(req.Request)
|
|
if err != nil {
|
|
log.Warn("DataCoord.GetMetrics failed to parse metric type",
|
|
zap.Int64("node_id", Params.NodeID),
|
|
zap.String("req", req.Request),
|
|
zap.Error(err))
|
|
|
|
return &milvuspb.GetMetricsResponse{
|
|
Status: &commonpb.Status{
|
|
ErrorCode: commonpb.ErrorCode_UnexpectedError,
|
|
Reason: err.Error(),
|
|
},
|
|
Response: "",
|
|
}, nil
|
|
}
|
|
|
|
log.Debug("DataCoord.GetMetrics",
|
|
zap.String("metric_type", metricType))
|
|
|
|
if metricType == metricsinfo.SystemInfoMetrics {
|
|
ret, err := s.metricsCacheManager.GetSystemInfoMetrics()
|
|
if err == nil && ret != nil {
|
|
return ret, nil
|
|
}
|
|
log.Debug("failed to get system info metrics from cache, recompute instead",
|
|
zap.Error(err))
|
|
|
|
metrics, err := s.getSystemInfoMetrics(ctx, req)
|
|
|
|
log.Debug("DataCoord.GetMetrics",
|
|
zap.Int64("node_id", Params.NodeID),
|
|
zap.String("req", req.Request),
|
|
zap.String("metric_type", metricType),
|
|
zap.Any("metrics", metrics), // TODO(dragondriver): necessary? may be very large
|
|
zap.Error(err))
|
|
|
|
s.metricsCacheManager.UpdateSystemInfoMetrics(metrics)
|
|
|
|
return metrics, err
|
|
}
|
|
|
|
log.Debug("DataCoord.GetMetrics failed, request metric type is not implemented yet",
|
|
zap.Int64("node_id", Params.NodeID),
|
|
zap.String("req", req.Request),
|
|
zap.String("metric_type", metricType))
|
|
|
|
return &milvuspb.GetMetricsResponse{
|
|
Status: &commonpb.Status{
|
|
ErrorCode: commonpb.ErrorCode_UnexpectedError,
|
|
Reason: metricsinfo.MsgUnimplementedMetric,
|
|
},
|
|
Response: "",
|
|
}, nil
|
|
}
|