2023-03-27 00:42:00 +08:00
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// 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 segments
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/*
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#cgo pkg-config: milvus_segcore
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#include "segcore/collection_c.h"
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#include "segcore/segment_c.h"
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*/
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import "C"
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2023-04-06 19:14:32 +08:00
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2023-03-27 00:42:00 +08:00
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import (
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"fmt"
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"sync"
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"github.com/milvus-io/milvus/internal/proto/querypb"
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2023-07-25 17:23:01 +08:00
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"github.com/milvus-io/milvus/pkg/eventlog"
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2023-08-11 11:21:32 +08:00
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"github.com/milvus-io/milvus/pkg/log"
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2023-04-06 19:14:32 +08:00
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"github.com/milvus-io/milvus/pkg/metrics"
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2023-08-16 18:38:17 +08:00
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"github.com/milvus-io/milvus/pkg/util/merr"
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2023-04-06 19:14:32 +08:00
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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. "github.com/milvus-io/milvus/pkg/util/typeutil"
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2023-08-11 11:21:32 +08:00
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"go.uber.org/zap"
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2023-03-27 00:42:00 +08:00
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)
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type SegmentFilter func(segment Segment) bool
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func WithPartition(partitionID UniqueID) SegmentFilter {
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return func(segment Segment) bool {
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return segment.Partition() == partitionID
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}
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}
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func WithChannel(channel string) SegmentFilter {
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return func(segment Segment) bool {
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return segment.Shard() == channel
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}
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}
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func WithType(typ SegmentType) SegmentFilter {
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return func(segment Segment) bool {
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return segment.Type() == typ
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}
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}
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func WithID(id int64) SegmentFilter {
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return func(segment Segment) bool {
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return segment.ID() == id
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}
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}
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type actionType int32
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const (
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removeAction actionType = iota
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addAction
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)
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type Manager struct {
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Collection CollectionManager
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Segment SegmentManager
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}
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func NewManager() *Manager {
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return &Manager{
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Collection: NewCollectionManager(),
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Segment: NewSegmentManager(),
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}
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}
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type SegmentManager interface {
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// Put puts the given segments in,
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// and increases the ref count of the corresponding collection,
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// dup segments will not increase the ref count
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Put(segmentType SegmentType, segments ...Segment)
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Get(segmentID UniqueID) Segment
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GetWithType(segmentID UniqueID, typ SegmentType) Segment
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GetBy(filters ...SegmentFilter) []Segment
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2023-08-16 18:38:17 +08:00
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// Get segments and acquire the read locks
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GetAndPinBy(filters ...SegmentFilter) ([]Segment, error)
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GetAndPin(segments []int64, filters ...SegmentFilter) ([]Segment, error)
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Unpin(segments []Segment)
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2023-03-27 00:42:00 +08:00
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GetSealed(segmentID UniqueID) Segment
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GetGrowing(segmentID UniqueID) Segment
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2023-06-30 17:28:23 +08:00
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Empty() bool
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2023-03-27 00:42:00 +08:00
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// Remove removes the given segment,
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// and decreases the ref count of the corresponding collection,
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// will not decrease the ref count if the given segment not exists
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2023-07-14 10:28:30 +08:00
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Remove(segmentID UniqueID, scope querypb.DataScope) (int, int)
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RemoveBy(filters ...SegmentFilter) (int, int)
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2023-06-30 17:28:23 +08:00
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Clear()
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2023-08-11 11:21:32 +08:00
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UpdateSegmentVersion(segmentType SegmentType, segmentID int64, newVersion int64)
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2023-03-27 00:42:00 +08:00
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}
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var _ SegmentManager = (*segmentManager)(nil)
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// Manager manages all collections and segments
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type segmentManager struct {
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mu sync.RWMutex // guards all
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growingSegments map[UniqueID]Segment
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sealedSegments map[UniqueID]Segment
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}
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func NewSegmentManager() *segmentManager {
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return &segmentManager{
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growingSegments: make(map[int64]Segment),
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sealedSegments: make(map[int64]Segment),
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}
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}
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func (mgr *segmentManager) Put(segmentType SegmentType, segments ...Segment) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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targetMap := mgr.growingSegments
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switch segmentType {
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case SegmentTypeGrowing:
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targetMap = mgr.growingSegments
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case SegmentTypeSealed:
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targetMap = mgr.sealedSegments
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default:
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panic("unexpected segment type")
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}
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for _, segment := range segments {
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2023-08-11 11:21:32 +08:00
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oldSegment, ok := targetMap[segment.ID()]
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if ok && oldSegment.Version() >= segment.Version() {
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log.Warn("Invalid segment distribution changed, skip it",
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zap.Int64("segmentID", segment.ID()),
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zap.Int64("oldVersion", oldSegment.Version()),
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zap.Int64("newVersion", segment.Version()),
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)
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2023-03-27 00:42:00 +08:00
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continue
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}
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targetMap[segment.ID()] = segment
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2023-08-11 11:21:32 +08:00
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if !ok {
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eventlog.Record(eventlog.NewRawEvt(eventlog.Level_Info, fmt.Sprintf("Segment %d[%d] loaded", segment.ID(), segment.Collection())))
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metrics.QueryNodeNumSegments.WithLabelValues(
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2023-03-27 00:42:00 +08:00
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fmt.Sprint(paramtable.GetNodeID()),
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fmt.Sprint(segment.Collection()),
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fmt.Sprint(segment.Partition()),
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segment.Type().String(),
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fmt.Sprint(len(segment.Indexes())),
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2023-08-11 11:21:32 +08:00
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).Inc()
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if segment.RowNum() > 0 {
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metrics.QueryNodeNumEntities.WithLabelValues(
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fmt.Sprint(paramtable.GetNodeID()),
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fmt.Sprint(segment.Collection()),
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fmt.Sprint(segment.Partition()),
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segment.Type().String(),
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fmt.Sprint(len(segment.Indexes())),
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).Add(float64(segment.RowNum()))
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}
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2023-03-27 00:42:00 +08:00
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}
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}
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mgr.updateMetric()
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}
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2023-08-11 11:21:32 +08:00
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func (mgr *segmentManager) UpdateSegmentVersion(segmentType SegmentType, segmentID int64, newVersion int64) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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2023-08-21 09:56:20 +08:00
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segment, ok := mgr.sealedSegments[segmentID]
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if !ok {
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segment, ok = mgr.growingSegments[segmentID]
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2023-08-11 11:21:32 +08:00
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}
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if !ok {
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log.Warn("segment not exist, skip segment version change",
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2023-08-21 09:56:20 +08:00
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zap.Any("type", segmentType),
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2023-08-11 11:21:32 +08:00
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zap.Int64("segmentID", segmentID),
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zap.Int64("newVersion", newVersion),
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)
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return
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}
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if segment.Version() >= newVersion {
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log.Warn("Invalid segment version changed, skip it",
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zap.Int64("segmentID", segment.ID()),
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2023-08-21 09:56:20 +08:00
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zap.Any("type", segmentType),
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2023-08-11 11:21:32 +08:00
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zap.Int64("oldVersion", segment.Version()),
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zap.Int64("newVersion", newVersion))
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return
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}
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segment.UpdateVersion(newVersion)
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}
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2023-03-27 00:42:00 +08:00
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func (mgr *segmentManager) Get(segmentID UniqueID) Segment {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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if segment, ok := mgr.growingSegments[segmentID]; ok {
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return segment
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} else if segment, ok = mgr.sealedSegments[segmentID]; ok {
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return segment
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}
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return nil
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}
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func (mgr *segmentManager) GetWithType(segmentID UniqueID, typ SegmentType) Segment {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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switch typ {
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case SegmentTypeSealed:
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return mgr.sealedSegments[segmentID]
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case SegmentTypeGrowing:
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return mgr.growingSegments[segmentID]
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default:
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return nil
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}
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}
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func (mgr *segmentManager) GetBy(filters ...SegmentFilter) []Segment {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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ret := make([]Segment, 0)
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for _, segment := range mgr.growingSegments {
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if filter(segment, filters...) {
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ret = append(ret, segment)
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}
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}
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for _, segment := range mgr.sealedSegments {
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if filter(segment, filters...) {
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ret = append(ret, segment)
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}
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}
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return ret
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}
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2023-08-16 18:38:17 +08:00
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func (mgr *segmentManager) GetAndPinBy(filters ...SegmentFilter) ([]Segment, error) {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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ret := make([]Segment, 0)
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var err error
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defer func() {
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if err != nil {
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for _, segment := range ret {
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segment.RUnlock()
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}
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}
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}()
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for _, segment := range mgr.growingSegments {
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if filter(segment, filters...) {
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err = segment.RLock()
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if err != nil {
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return nil, err
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}
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ret = append(ret, segment)
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}
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}
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for _, segment := range mgr.sealedSegments {
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if filter(segment, filters...) {
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err = segment.RLock()
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if err != nil {
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return nil, err
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}
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ret = append(ret, segment)
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}
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}
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return ret, nil
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}
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func (mgr *segmentManager) GetAndPin(segments []int64, filters ...SegmentFilter) ([]Segment, error) {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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lockedSegments := make([]Segment, 0, len(segments))
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var err error
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defer func() {
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if err != nil {
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for _, segment := range lockedSegments {
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segment.RUnlock()
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}
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}
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}()
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for _, id := range segments {
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growing, growingExist := mgr.growingSegments[id]
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sealed, sealedExist := mgr.sealedSegments[id]
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growingExist = growingExist && filter(growing, filters...)
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sealedExist = sealedExist && filter(sealed, filters...)
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if growingExist {
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err = growing.RLock()
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if err != nil {
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return nil, err
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}
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lockedSegments = append(lockedSegments, growing)
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}
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if sealedExist {
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err = sealed.RLock()
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if err != nil {
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return nil, err
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}
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lockedSegments = append(lockedSegments, sealed)
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}
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if !growingExist && !sealedExist {
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err = merr.WrapErrSegmentNotLoaded(id, "segment not found")
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return nil, err
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}
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}
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return lockedSegments, nil
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}
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func (mgr *segmentManager) Unpin(segments []Segment) {
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for _, segment := range segments {
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segment.RUnlock()
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}
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}
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2023-03-27 00:42:00 +08:00
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func filter(segment Segment, filters ...SegmentFilter) bool {
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for _, filter := range filters {
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if !filter(segment) {
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return false
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}
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}
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return true
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}
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func (mgr *segmentManager) GetSealed(segmentID UniqueID) Segment {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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if segment, ok := mgr.sealedSegments[segmentID]; ok {
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return segment
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}
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return nil
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}
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func (mgr *segmentManager) GetGrowing(segmentID UniqueID) Segment {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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if segment, ok := mgr.growingSegments[segmentID]; ok {
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return segment
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}
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return nil
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}
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2023-06-30 17:28:23 +08:00
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func (mgr *segmentManager) Empty() bool {
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mgr.mu.RLock()
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defer mgr.mu.RUnlock()
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return len(mgr.growingSegments)+len(mgr.sealedSegments) == 0
|
|
|
|
}
|
|
|
|
|
2023-07-14 10:28:30 +08:00
|
|
|
// returns true if the segment exists,
|
|
|
|
// false otherwise
|
|
|
|
func (mgr *segmentManager) Remove(segmentID UniqueID, scope querypb.DataScope) (int, int) {
|
2023-03-27 00:42:00 +08:00
|
|
|
mgr.mu.Lock()
|
|
|
|
|
2023-07-14 10:28:30 +08:00
|
|
|
var removeGrowing, removeSealed int
|
2023-08-18 15:28:18 +08:00
|
|
|
var growing, sealed *LocalSegment
|
2023-03-27 00:42:00 +08:00
|
|
|
switch scope {
|
|
|
|
case querypb.DataScope_Streaming:
|
2023-08-18 15:28:18 +08:00
|
|
|
growing = mgr.removeSegmentWithType(SegmentTypeGrowing, segmentID)
|
|
|
|
if growing != nil {
|
2023-07-14 10:28:30 +08:00
|
|
|
removeGrowing = 1
|
|
|
|
}
|
2023-03-27 00:42:00 +08:00
|
|
|
|
|
|
|
case querypb.DataScope_Historical:
|
2023-08-18 15:28:18 +08:00
|
|
|
sealed = mgr.removeSegmentWithType(SegmentTypeSealed, segmentID)
|
|
|
|
if sealed != nil {
|
2023-07-14 10:28:30 +08:00
|
|
|
removeSealed = 1
|
|
|
|
}
|
2023-03-27 00:42:00 +08:00
|
|
|
|
|
|
|
case querypb.DataScope_All:
|
2023-08-18 15:28:18 +08:00
|
|
|
growing = mgr.removeSegmentWithType(SegmentTypeGrowing, segmentID)
|
|
|
|
if growing != nil {
|
2023-07-14 10:28:30 +08:00
|
|
|
removeGrowing = 1
|
|
|
|
}
|
2023-08-18 15:28:18 +08:00
|
|
|
|
|
|
|
sealed = mgr.removeSegmentWithType(SegmentTypeSealed, segmentID)
|
|
|
|
if sealed != nil {
|
2023-07-14 10:28:30 +08:00
|
|
|
removeSealed = 1
|
|
|
|
}
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|
|
|
|
mgr.updateMetric()
|
2023-08-18 15:28:18 +08:00
|
|
|
mgr.mu.Unlock()
|
|
|
|
|
|
|
|
if growing != nil {
|
|
|
|
remove(growing)
|
|
|
|
}
|
|
|
|
|
|
|
|
if sealed != nil {
|
|
|
|
remove(sealed)
|
|
|
|
}
|
|
|
|
|
2023-07-14 10:28:30 +08:00
|
|
|
return removeGrowing, removeSealed
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|
|
|
|
|
2023-08-18 15:28:18 +08:00
|
|
|
func (mgr *segmentManager) removeSegmentWithType(typ SegmentType, segmentID UniqueID) *LocalSegment {
|
|
|
|
switch typ {
|
|
|
|
case SegmentTypeGrowing:
|
|
|
|
s, ok := mgr.growingSegments[segmentID]
|
|
|
|
if ok {
|
|
|
|
delete(mgr.growingSegments, segmentID)
|
|
|
|
return s.(*LocalSegment)
|
|
|
|
}
|
|
|
|
|
|
|
|
case SegmentTypeSealed:
|
|
|
|
s, ok := mgr.sealedSegments[segmentID]
|
|
|
|
if ok {
|
|
|
|
delete(mgr.sealedSegments, segmentID)
|
|
|
|
return s.(*LocalSegment)
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2023-07-14 10:28:30 +08:00
|
|
|
func (mgr *segmentManager) RemoveBy(filters ...SegmentFilter) (int, int) {
|
2023-03-27 00:42:00 +08:00
|
|
|
mgr.mu.Lock()
|
|
|
|
|
2023-08-18 15:28:18 +08:00
|
|
|
var removeGrowing, removeSealed []*LocalSegment
|
2023-03-27 00:42:00 +08:00
|
|
|
for id, segment := range mgr.growingSegments {
|
2023-08-18 15:28:18 +08:00
|
|
|
if filter(segment, filters...) {
|
|
|
|
s := mgr.removeSegmentWithType(SegmentTypeGrowing, id)
|
|
|
|
if s != nil {
|
|
|
|
removeGrowing = append(removeGrowing, s)
|
|
|
|
}
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for id, segment := range mgr.sealedSegments {
|
2023-08-18 15:28:18 +08:00
|
|
|
if filter(segment, filters...) {
|
|
|
|
s := mgr.removeSegmentWithType(SegmentTypeSealed, id)
|
|
|
|
if s != nil {
|
|
|
|
removeSealed = append(removeSealed, s)
|
|
|
|
}
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
mgr.updateMetric()
|
2023-08-18 15:28:18 +08:00
|
|
|
mgr.mu.Unlock()
|
|
|
|
|
|
|
|
for _, s := range removeGrowing {
|
|
|
|
remove(s)
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, s := range removeSealed {
|
|
|
|
remove(s)
|
|
|
|
}
|
|
|
|
|
|
|
|
return len(removeGrowing), len(removeSealed)
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|
|
|
|
|
2023-06-30 17:28:23 +08:00
|
|
|
func (mgr *segmentManager) Clear() {
|
|
|
|
mgr.mu.Lock()
|
|
|
|
defer mgr.mu.Unlock()
|
|
|
|
|
2023-08-18 15:28:18 +08:00
|
|
|
for id, segment := range mgr.growingSegments {
|
|
|
|
delete(mgr.growingSegments, id)
|
|
|
|
remove(segment.(*LocalSegment))
|
2023-06-30 17:28:23 +08:00
|
|
|
}
|
|
|
|
|
2023-08-18 15:28:18 +08:00
|
|
|
for id, segment := range mgr.sealedSegments {
|
|
|
|
delete(mgr.sealedSegments, id)
|
|
|
|
remove(segment.(*LocalSegment))
|
2023-06-30 17:28:23 +08:00
|
|
|
}
|
|
|
|
mgr.updateMetric()
|
|
|
|
}
|
|
|
|
|
2023-03-27 00:42:00 +08:00
|
|
|
func (mgr *segmentManager) updateMetric() {
|
|
|
|
// update collection and partiation metric
|
|
|
|
var collections, partiations = make(Set[int64]), make(Set[int64])
|
|
|
|
for _, seg := range mgr.growingSegments {
|
|
|
|
collections.Insert(seg.Collection())
|
|
|
|
partiations.Insert(seg.Partition())
|
|
|
|
}
|
|
|
|
for _, seg := range mgr.sealedSegments {
|
|
|
|
collections.Insert(seg.Collection())
|
|
|
|
partiations.Insert(seg.Partition())
|
|
|
|
}
|
|
|
|
metrics.QueryNodeNumCollections.WithLabelValues(fmt.Sprint(paramtable.GetNodeID())).Set(float64(collections.Len()))
|
|
|
|
metrics.QueryNodeNumPartitions.WithLabelValues(fmt.Sprint(paramtable.GetNodeID())).Set(float64(partiations.Len()))
|
|
|
|
}
|
|
|
|
|
2023-08-18 15:28:18 +08:00
|
|
|
func remove(segment *LocalSegment) bool {
|
2023-03-27 00:42:00 +08:00
|
|
|
rowNum := segment.RowNum()
|
2023-08-18 15:28:18 +08:00
|
|
|
DeleteSegment(segment)
|
2023-03-27 00:42:00 +08:00
|
|
|
|
|
|
|
metrics.QueryNodeNumSegments.WithLabelValues(
|
|
|
|
fmt.Sprint(paramtable.GetNodeID()),
|
|
|
|
fmt.Sprint(segment.Collection()),
|
|
|
|
fmt.Sprint(segment.Partition()),
|
|
|
|
segment.Type().String(),
|
|
|
|
fmt.Sprint(len(segment.Indexes())),
|
|
|
|
).Dec()
|
|
|
|
if rowNum > 0 {
|
|
|
|
metrics.QueryNodeNumEntities.WithLabelValues(
|
|
|
|
fmt.Sprint(paramtable.GetNodeID()),
|
|
|
|
fmt.Sprint(segment.Collection()),
|
|
|
|
fmt.Sprint(segment.Partition()),
|
|
|
|
segment.Type().String(),
|
|
|
|
fmt.Sprint(len(segment.Indexes())),
|
|
|
|
).Sub(float64(rowNum))
|
|
|
|
}
|
2023-07-14 10:28:30 +08:00
|
|
|
return true
|
2023-03-27 00:42:00 +08:00
|
|
|
}
|