milvus/internal/datacoord/import_scheduler.go
yihao.dai 4e264003bf
enhance: Ensure ImportV2 waits for the index to be built and refine some logic (#31629)
Feature Introduced:
1. Ensure ImportV2 waits for the index to be built

Enhancements Introduced:
1. Utilization of local time for timeout ts instead of allocating ts
from rootcoord.
3. Enhanced input file length check for binlog import.
4. Removal of duplicated manager in datanode.
5. Renaming of executor to scheduler in datanode.
6. Utilization of a thread pool in the scheduler in datanode.

issue: https://github.com/milvus-io/milvus/issues/28521

---------

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
2024-04-01 20:09:13 +08:00

354 lines
11 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 datacoord
import (
"sort"
"strconv"
"sync"
"time"
"github.com/samber/lo"
"go.uber.org/zap"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
"github.com/milvus-io/milvus/internal/metastore/kv/binlog"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/proto/internalpb"
"github.com/milvus-io/milvus/pkg/log"
"github.com/milvus-io/milvus/pkg/metrics"
)
const (
NullNodeID = -1
)
type ImportScheduler interface {
Start()
Close()
}
type importScheduler struct {
meta *meta
cluster Cluster
alloc allocator
imeta ImportMeta
buildIndexCh chan UniqueID
closeOnce sync.Once
closeChan chan struct{}
}
func NewImportScheduler(meta *meta,
cluster Cluster,
alloc allocator,
imeta ImportMeta,
buildIndexCh chan UniqueID,
) ImportScheduler {
return &importScheduler{
meta: meta,
cluster: cluster,
alloc: alloc,
imeta: imeta,
buildIndexCh: buildIndexCh,
closeChan: make(chan struct{}),
}
}
func (s *importScheduler) Start() {
log.Info("start import scheduler")
ticker := time.NewTicker(Params.DataCoordCfg.ImportScheduleInterval.GetAsDuration(time.Second))
defer ticker.Stop()
for {
select {
case <-s.closeChan:
log.Info("import scheduler exited")
return
case <-ticker.C:
s.process()
}
}
}
func (s *importScheduler) Close() {
s.closeOnce.Do(func() {
close(s.closeChan)
})
}
func (s *importScheduler) process() {
getNodeID := func(nodeSlots map[int64]int64) int64 {
var (
nodeID int64 = NullNodeID
maxSlots int64 = -1
)
for id, slots := range nodeSlots {
if slots > 0 && slots > maxSlots {
nodeID = id
maxSlots = slots
}
}
if nodeID != NullNodeID {
nodeSlots[nodeID]--
}
return nodeID
}
jobs := s.imeta.GetJobBy()
sort.Slice(jobs, func(i, j int) bool {
return jobs[i].GetJobID() < jobs[j].GetJobID()
})
nodeSlots := s.peekSlots()
for _, job := range jobs {
tasks := s.imeta.GetTaskBy(WithJob(job.GetJobID()))
for _, task := range tasks {
switch task.GetState() {
case datapb.ImportTaskStateV2_Pending:
nodeID := getNodeID(nodeSlots)
switch task.GetType() {
case PreImportTaskType:
s.processPendingPreImport(task, nodeID)
case ImportTaskType:
s.processPendingImport(task, nodeID)
}
case datapb.ImportTaskStateV2_InProgress:
switch task.GetType() {
case PreImportTaskType:
s.processInProgressPreImport(task)
case ImportTaskType:
s.processInProgressImport(task)
}
case datapb.ImportTaskStateV2_Completed:
s.processCompleted(task)
case datapb.ImportTaskStateV2_Failed:
s.processFailed(task)
}
}
}
}
func (s *importScheduler) peekSlots() map[int64]int64 {
nodeIDs := lo.Map(s.cluster.GetSessions(), func(s *Session, _ int) int64 {
return s.info.NodeID
})
nodeSlots := make(map[int64]int64)
mu := &sync.Mutex{}
wg := &sync.WaitGroup{}
for _, nodeID := range nodeIDs {
wg.Add(1)
go func(nodeID int64) {
defer wg.Done()
resp, err := s.cluster.QueryImport(nodeID, &datapb.QueryImportRequest{QuerySlot: true})
if err != nil {
log.Warn("query import failed", zap.Error(err))
return
}
mu.Lock()
defer mu.Unlock()
nodeSlots[nodeID] = resp.GetSlots()
}(nodeID)
}
wg.Wait()
log.Debug("peek slots done", zap.Any("nodeSlots", nodeSlots))
return nodeSlots
}
func (s *importScheduler) processPendingPreImport(task ImportTask, nodeID int64) {
if nodeID == NullNodeID {
return
}
log.Info("processing pending preimport task...", WrapTaskLog(task)...)
job := s.imeta.GetJob(task.GetJobID())
req := AssemblePreImportRequest(task, job)
err := s.cluster.PreImport(nodeID, req)
if err != nil {
log.Warn("preimport failed", WrapTaskLog(task, zap.Error(err))...)
return
}
err = s.imeta.UpdateTask(task.GetTaskID(),
UpdateState(datapb.ImportTaskStateV2_InProgress),
UpdateNodeID(nodeID))
if err != nil {
log.Warn("update import task failed", WrapTaskLog(task, zap.Error(err))...)
return
}
log.Info("process pending preimport task done", WrapTaskLog(task)...)
}
func (s *importScheduler) processPendingImport(task ImportTask, nodeID int64) {
if nodeID == NullNodeID {
return
}
log.Info("processing pending import task...", WrapTaskLog(task)...)
job := s.imeta.GetJob(task.GetJobID())
req, err := AssembleImportRequest(task, job, s.meta, s.alloc)
if err != nil {
log.Warn("assemble import request failed", WrapTaskLog(task, zap.Error(err))...)
return
}
err = s.cluster.ImportV2(nodeID, req)
if err != nil {
log.Warn("import failed", WrapTaskLog(task, zap.Error(err))...)
return
}
err = s.imeta.UpdateTask(task.GetTaskID(),
UpdateState(datapb.ImportTaskStateV2_InProgress),
UpdateNodeID(nodeID))
if err != nil {
log.Warn("update import task failed", WrapTaskLog(task, zap.Error(err))...)
return
}
log.Info("processing pending import task done", WrapTaskLog(task)...)
}
func (s *importScheduler) processInProgressPreImport(task ImportTask) {
req := &datapb.QueryPreImportRequest{
JobID: task.GetJobID(),
TaskID: task.GetTaskID(),
}
resp, err := s.cluster.QueryPreImport(task.GetNodeID(), req)
if err != nil {
updateErr := s.imeta.UpdateTask(task.GetTaskID(), UpdateState(datapb.ImportTaskStateV2_Pending))
if updateErr != nil {
log.Warn("failed to update preimport task state to pending", WrapTaskLog(task, zap.Error(updateErr))...)
}
log.Info("reset preimport task state to pending due to error occurs", WrapTaskLog(task, zap.Error(err))...)
return
}
if resp.GetState() == datapb.ImportTaskStateV2_Failed {
err = s.imeta.UpdateJob(task.GetJobID(), UpdateJobState(internalpb.ImportJobState_Failed),
UpdateJobReason(resp.GetReason()))
if err != nil {
log.Warn("failed to update job state to Failed", zap.Int64("jobID", task.GetJobID()), zap.Error(err))
}
log.Warn("preimport failed", WrapTaskLog(task, zap.String("reason", resp.GetReason()))...)
return
}
actions := []UpdateAction{UpdateFileStats(resp.GetFileStats())}
if resp.GetState() == datapb.ImportTaskStateV2_Completed {
actions = append(actions, UpdateState(datapb.ImportTaskStateV2_Completed))
}
err = s.imeta.UpdateTask(task.GetTaskID(), actions...)
if err != nil {
log.Warn("update preimport task failed", WrapTaskLog(task, zap.Error(err))...)
return
}
log.Info("query preimport", WrapTaskLog(task, zap.String("state", resp.GetState().String()),
zap.Any("fileStats", resp.GetFileStats()))...)
}
func (s *importScheduler) processInProgressImport(task ImportTask) {
req := &datapb.QueryImportRequest{
JobID: task.GetJobID(),
TaskID: task.GetTaskID(),
}
resp, err := s.cluster.QueryImport(task.GetNodeID(), req)
if err != nil {
updateErr := s.imeta.UpdateTask(task.GetTaskID(), UpdateState(datapb.ImportTaskStateV2_Pending))
if updateErr != nil {
log.Warn("failed to update import task state to pending", WrapTaskLog(task, zap.Error(updateErr))...)
}
log.Info("reset import task state to pending due to error occurs", WrapTaskLog(task, zap.Error(err))...)
return
}
if resp.GetState() == datapb.ImportTaskStateV2_Failed {
err = s.imeta.UpdateJob(task.GetJobID(), UpdateJobState(internalpb.ImportJobState_Failed),
UpdateJobReason(resp.GetReason()))
if err != nil {
log.Warn("failed to update job state to Failed", zap.Int64("jobID", task.GetJobID()), zap.Error(err))
}
log.Warn("import failed", WrapTaskLog(task, zap.String("reason", resp.GetReason()))...)
return
}
for _, info := range resp.GetImportSegmentsInfo() {
segment := s.meta.GetSegment(info.GetSegmentID())
if info.GetImportedRows() <= segment.GetNumOfRows() {
continue // rows not changed, no need to update
}
diff := info.GetImportedRows() - segment.GetNumOfRows()
op := UpdateImportedRows(info.GetSegmentID(), info.GetImportedRows())
err = s.meta.UpdateSegmentsInfo(op)
if err != nil {
log.Warn("update import segment rows failed", WrapTaskLog(task, zap.Error(err))...)
return
}
metrics.DataCoordBulkVectors.WithLabelValues(
strconv.FormatInt(task.GetCollectionID(), 10),
).Add(float64(diff))
}
if resp.GetState() == datapb.ImportTaskStateV2_Completed {
for _, info := range resp.GetImportSegmentsInfo() {
// try to parse path and fill logID
err = binlog.CompressFieldBinlogs(info.GetBinlogs())
if err != nil {
log.Warn("fail to CompressFieldBinlogs for import binlogs",
WrapTaskLog(task, zap.Int64("segmentID", info.GetSegmentID()), zap.Error(err))...)
return
}
op1 := UpdateBinlogsOperator(info.GetSegmentID(), info.GetBinlogs(), info.GetStatslogs(), nil)
op2 := UpdateStatusOperator(info.GetSegmentID(), commonpb.SegmentState_Flushed)
err = s.meta.UpdateSegmentsInfo(op1, op2)
if err != nil {
log.Warn("update import segment binlogs failed", WrapTaskLog(task, zap.Error(err))...)
return
}
select {
case s.buildIndexCh <- info.GetSegmentID(): // accelerate index building:
default:
}
}
completeTime := time.Now().Format("2006-01-02T15:04:05Z07:00")
err = s.imeta.UpdateTask(task.GetTaskID(), UpdateState(datapb.ImportTaskStateV2_Completed), UpdateCompleteTime(completeTime))
if err != nil {
log.Warn("update import task failed", WrapTaskLog(task, zap.Error(err))...)
return
}
}
log.Info("query import", WrapTaskLog(task, zap.String("state", resp.GetState().String()),
zap.String("reason", resp.GetReason()))...)
}
func (s *importScheduler) processCompleted(task ImportTask) {
err := DropImportTask(task, s.cluster, s.imeta)
if err != nil {
log.Warn("drop import failed", WrapTaskLog(task, zap.Error(err))...)
}
}
func (s *importScheduler) processFailed(task ImportTask) {
if task.GetType() == ImportTaskType {
segments := task.(*importTask).GetSegmentIDs()
for _, segment := range segments {
err := s.meta.DropSegment(segment)
if err != nil {
log.Warn("drop import segment failed",
WrapTaskLog(task, zap.Int64("segment", segment), zap.Error(err))...)
return
}
}
err := s.imeta.UpdateTask(task.GetTaskID(), UpdateSegmentIDs(nil))
if err != nil {
log.Warn("update import task segments failed", WrapTaskLog(task, zap.Error(err))...)
}
}
err := DropImportTask(task, s.cluster, s.imeta)
if err != nil {
log.Warn("drop import failed", WrapTaskLog(task, zap.Error(err))...)
}
}