mirror of
https://gitee.com/milvus-io/milvus.git
synced 2026-01-07 19:31:51 +08:00
0b905078e7
See also #27675 This PR make previously merged refactory of datanode go online - Use write node to replace insert/delete node - Use write buffer manager to control all buffers - Use sync manager to control sync tasks instead of flush manager Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
97 lines
3.6 KiB
Go
97 lines
3.6 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 (
|
|
// "math"
|
|
// "sort"
|
|
// "time"
|
|
|
|
// "github.com/samber/lo"
|
|
// "go.uber.org/zap"
|
|
|
|
// "github.com/milvus-io/milvus/pkg/log"
|
|
// "github.com/milvus-io/milvus/pkg/util/tsoutil"
|
|
// )
|
|
|
|
// const minSyncSize = 0.5 * 1024 * 1024
|
|
|
|
// // segmentsSyncPolicy sync policy applies to segments
|
|
// type segmentSyncPolicy func(segments []*Segment, c Channel, ts Timestamp) []UniqueID
|
|
|
|
// // syncPeriodically get segmentSyncPolicy with segments sync periodically.
|
|
// func syncPeriodically() segmentSyncPolicy {
|
|
// return func(segments []*Segment, c Channel, ts Timestamp) []UniqueID {
|
|
// segmentsToSync := make([]UniqueID, 0)
|
|
// for _, seg := range segments {
|
|
// endPosTime := tsoutil.PhysicalTime(ts)
|
|
// minBufferTime := tsoutil.PhysicalTime(seg.minBufferTs())
|
|
// shouldSync := endPosTime.Sub(minBufferTime) >= Params.DataNodeCfg.SyncPeriod.GetAsDuration(time.Second)
|
|
// if shouldSync {
|
|
// segmentsToSync = append(segmentsToSync, seg.segmentID)
|
|
// }
|
|
// }
|
|
// if len(segmentsToSync) > 0 {
|
|
// log.Info("sync segment periodically", zap.Int64s("segmentIDs", segmentsToSync))
|
|
// }
|
|
// return segmentsToSync
|
|
// }
|
|
// }
|
|
|
|
// // syncMemoryTooHigh force sync the largest segment.
|
|
// func syncMemoryTooHigh() segmentSyncPolicy {
|
|
// return func(segments []*Segment, c Channel, _ Timestamp) []UniqueID {
|
|
// if len(segments) == 0 || !c.getIsHighMemory() {
|
|
// return nil
|
|
// }
|
|
// sort.Slice(segments, func(i, j int) bool {
|
|
// return segments[i].memorySize > segments[j].memorySize
|
|
// })
|
|
// syncSegments := make([]UniqueID, 0)
|
|
// syncSegmentsNum := math.Min(float64(Params.DataNodeCfg.MemoryForceSyncSegmentNum.GetAsInt()), float64(len(segments)))
|
|
// for i := 0; i < int(syncSegmentsNum); i++ {
|
|
// if segments[i].memorySize < minSyncSize { // prevent generating too many small binlogs
|
|
// break
|
|
// }
|
|
// syncSegments = append(syncSegments, segments[i].segmentID)
|
|
// log.Info("sync segment due to memory usage is too high",
|
|
// zap.Int64("segmentID", segments[i].segmentID),
|
|
// zap.Int64("memorySize", segments[i].memorySize))
|
|
// }
|
|
// return syncSegments
|
|
// }
|
|
// }
|
|
|
|
// // syncSegmentsAtTs returns a new segmentSyncPolicy, sync segments when ts exceeds ChannelMeta.flushTs
|
|
// func syncSegmentsAtTs() segmentSyncPolicy {
|
|
// return func(segments []*Segment, c Channel, ts Timestamp) []UniqueID {
|
|
// flushTs := c.getFlushTs()
|
|
// if flushTs != 0 && ts >= flushTs {
|
|
// segmentsWithBuffer := lo.Filter(segments, func(segment *Segment, _ int) bool {
|
|
// return !segment.isBufferEmpty()
|
|
// })
|
|
// segmentIDs := lo.Map(segmentsWithBuffer, func(segment *Segment, _ int) UniqueID {
|
|
// return segment.segmentID
|
|
// })
|
|
// log.Info("sync segment at ts", zap.Int64s("segmentIDs", segmentIDs),
|
|
// zap.Time("ts", tsoutil.PhysicalTime(ts)), zap.Time("flushTs", tsoutil.PhysicalTime(flushTs)))
|
|
// return segmentIDs
|
|
// }
|
|
// return nil
|
|
// }
|
|
// }
|