mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-10 07:49:29 +08:00
345855c984
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
176 lines
5.0 KiB
Go
176 lines
5.0 KiB
Go
// 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 datanode
|
|
|
|
import (
|
|
"sync"
|
|
"sync/atomic"
|
|
|
|
"github.com/bits-and-blooms/bloom/v3"
|
|
"github.com/milvus-io/milvus/pkg/util/tsoutil"
|
|
"go.uber.org/zap"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/msgpb"
|
|
"github.com/milvus-io/milvus/internal/proto/datapb"
|
|
"github.com/milvus-io/milvus/internal/storage"
|
|
"github.com/milvus-io/milvus/pkg/log"
|
|
)
|
|
|
|
// Segment contains the latest segment infos from channel.
|
|
type Segment struct {
|
|
collectionID UniqueID
|
|
partitionID UniqueID
|
|
segmentID UniqueID
|
|
sType atomic.Value // datapb.SegmentType
|
|
|
|
numRows int64
|
|
memorySize int64
|
|
compactedTo UniqueID
|
|
|
|
curInsertBuf *BufferData
|
|
curDeleteBuf *DelDataBuf
|
|
historyInsertBuf []*BufferData
|
|
historyDeleteBuf []*DelDataBuf
|
|
|
|
statLock sync.RWMutex
|
|
currentStat *storage.PkStatistics
|
|
historyStats []*storage.PkStatistics
|
|
|
|
lastSyncTs Timestamp
|
|
startPos *msgpb.MsgPosition // TODO readonly
|
|
lazyLoading atomic.Value
|
|
}
|
|
|
|
func (s *Segment) isLoadingLazy() bool {
|
|
b, ok := s.lazyLoading.Load().(bool)
|
|
if !ok {
|
|
return false
|
|
}
|
|
return b
|
|
}
|
|
|
|
func (s *Segment) setLoadingLazy(b bool) {
|
|
s.lazyLoading.Store(b)
|
|
}
|
|
|
|
func (s *Segment) isValid() bool {
|
|
return s.getType() != datapb.SegmentType_Compacted
|
|
}
|
|
|
|
func (s *Segment) notFlushed() bool {
|
|
return s.isValid() && s.getType() != datapb.SegmentType_Flushed
|
|
}
|
|
|
|
func (s *Segment) getType() datapb.SegmentType {
|
|
return s.sType.Load().(datapb.SegmentType)
|
|
}
|
|
|
|
func (s *Segment) setType(t datapb.SegmentType) {
|
|
s.sType.Store(t)
|
|
}
|
|
|
|
func (s *Segment) updatePKRange(ids storage.FieldData) {
|
|
s.statLock.Lock()
|
|
defer s.statLock.Unlock()
|
|
s.InitCurrentStat()
|
|
err := s.currentStat.UpdatePKRange(ids)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
func (s *Segment) InitCurrentStat() {
|
|
if s.currentStat == nil {
|
|
s.currentStat = &storage.PkStatistics{
|
|
PkFilter: bloom.NewWithEstimates(storage.BloomFilterSize, storage.MaxBloomFalsePositive),
|
|
}
|
|
}
|
|
}
|
|
|
|
// check if PK exists is current
|
|
func (s *Segment) isPKExist(pk primaryKey) bool {
|
|
// for integrity, report false positive while lazy loading
|
|
if s.isLoadingLazy() {
|
|
return true
|
|
}
|
|
s.statLock.Lock()
|
|
defer s.statLock.Unlock()
|
|
if s.currentStat != nil && s.currentStat.PkExist(pk) {
|
|
return true
|
|
}
|
|
|
|
for _, historyStats := range s.historyStats {
|
|
if historyStats.PkExist(pk) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// rollInsertBuffer moves curInsertBuf to historyInsertBuf, and then sets curInsertBuf to nil.
|
|
func (s *Segment) rollInsertBuffer() {
|
|
if s.curInsertBuf == nil {
|
|
return
|
|
}
|
|
s.curInsertBuf.buffer = nil // free buffer memory, only keep meta infos in historyInsertBuf
|
|
s.historyInsertBuf = append(s.historyInsertBuf, s.curInsertBuf)
|
|
s.curInsertBuf = nil
|
|
}
|
|
|
|
// evictHistoryInsertBuffer removes flushed buffer from historyInsertBuf after saveBinlogPath.
|
|
func (s *Segment) evictHistoryInsertBuffer(endPos *msgpb.MsgPosition) {
|
|
tmpBuffers := make([]*BufferData, 0)
|
|
for _, buf := range s.historyInsertBuf {
|
|
if buf.endPos.Timestamp > endPos.Timestamp {
|
|
tmpBuffers = append(tmpBuffers, buf)
|
|
}
|
|
}
|
|
s.historyInsertBuf = tmpBuffers
|
|
ts, _ := tsoutil.ParseTS(endPos.Timestamp)
|
|
log.Info("evictHistoryInsertBuffer done", zap.Int64("segmentID", s.segmentID), zap.Time("ts", ts), zap.String("channel", endPos.ChannelName))
|
|
}
|
|
|
|
// rollDeleteBuffer moves curDeleteBuf to historyDeleteBuf, and then sets curDeleteBuf to nil.
|
|
func (s *Segment) rollDeleteBuffer() {
|
|
if s.curDeleteBuf == nil {
|
|
return
|
|
}
|
|
s.curDeleteBuf.delData = nil // free buffer memory, only keep meta infos in historyDeleteBuf
|
|
s.historyDeleteBuf = append(s.historyDeleteBuf, s.curDeleteBuf)
|
|
s.curDeleteBuf = nil
|
|
}
|
|
|
|
// evictHistoryDeleteBuffer removes flushed buffer from historyDeleteBuf after saveBinlogPath.
|
|
func (s *Segment) evictHistoryDeleteBuffer(endPos *msgpb.MsgPosition) {
|
|
tmpBuffers := make([]*DelDataBuf, 0)
|
|
for _, buf := range s.historyDeleteBuf {
|
|
if buf.endPos.Timestamp > endPos.Timestamp {
|
|
tmpBuffers = append(tmpBuffers, buf)
|
|
}
|
|
}
|
|
s.historyDeleteBuf = tmpBuffers
|
|
ts, _ := tsoutil.ParseTS(endPos.Timestamp)
|
|
log.Info("evictHistoryDeleteBuffer done", zap.Int64("segmentID", s.segmentID), zap.Time("ts", ts), zap.String("channel", endPos.ChannelName))
|
|
}
|
|
|
|
func (s *Segment) isBufferEmpty() bool {
|
|
return s.curInsertBuf == nil &&
|
|
s.curDeleteBuf == nil &&
|
|
len(s.historyInsertBuf) == 0 &&
|
|
len(s.historyDeleteBuf) == 0
|
|
}
|