mirror of https://github.com/milvus-io/milvus.git
372 lines
12 KiB
Go
372 lines
12 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 dist
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/samber/lo"
|
|
"go.uber.org/zap"
|
|
"google.golang.org/protobuf/proto"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
|
|
"github.com/milvus-io/milvus-proto/go-api/v2/msgpb"
|
|
"github.com/milvus-io/milvus/internal/querycoordv2/meta"
|
|
. "github.com/milvus-io/milvus/internal/querycoordv2/params"
|
|
"github.com/milvus-io/milvus/internal/querycoordv2/session"
|
|
"github.com/milvus-io/milvus/internal/querycoordv2/task"
|
|
"github.com/milvus-io/milvus/internal/querycoordv2/utils"
|
|
"github.com/milvus-io/milvus/pkg/v2/log"
|
|
"github.com/milvus-io/milvus/pkg/v2/proto/datapb"
|
|
"github.com/milvus-io/milvus/pkg/v2/proto/querypb"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/commonpbutil"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/merr"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/timerecord"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
|
|
)
|
|
|
|
type TriggerUpdateTargetVersion = func(collectionID int64)
|
|
|
|
type NotifyDelegatorChanges = func(collectionID ...int64)
|
|
|
|
type distHandler struct {
|
|
nodeID int64
|
|
c chan struct{}
|
|
wg sync.WaitGroup
|
|
client session.Cluster
|
|
nodeManager *session.NodeManager
|
|
scheduler task.Scheduler
|
|
dist *meta.DistributionManager
|
|
target meta.TargetManagerInterface
|
|
mu sync.Mutex
|
|
stopOnce sync.Once
|
|
lastUpdateTs int64
|
|
|
|
notifyFunc NotifyDelegatorChanges
|
|
}
|
|
|
|
func (dh *distHandler) start(ctx context.Context) {
|
|
defer dh.wg.Done()
|
|
log := log.Ctx(ctx).With(zap.Int64("nodeID", dh.nodeID)).WithRateGroup("qcv2.distHandler", 1, 60)
|
|
log.Info("start dist handler")
|
|
ticker := time.NewTicker(Params.QueryCoordCfg.DistPullInterval.GetAsDuration(time.Millisecond))
|
|
defer ticker.Stop()
|
|
checkExecutedFlagTicker := time.NewTicker(Params.QueryCoordCfg.CheckExecutedFlagInterval.GetAsDuration(time.Millisecond))
|
|
defer checkExecutedFlagTicker.Stop()
|
|
failures := 0
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
log.Info("close dist handler due to context done")
|
|
return
|
|
case <-dh.c:
|
|
log.Info("close dist handler")
|
|
return
|
|
case <-checkExecutedFlagTicker.C:
|
|
executedFlagChan := dh.scheduler.GetExecutedFlag(dh.nodeID)
|
|
if executedFlagChan != nil {
|
|
select {
|
|
case <-executedFlagChan:
|
|
dh.pullDist(ctx, &failures, false)
|
|
default:
|
|
}
|
|
}
|
|
case <-ticker.C:
|
|
dh.pullDist(ctx, &failures, true)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (dh *distHandler) pullDist(ctx context.Context, failures *int, dispatchTask bool) {
|
|
tr := timerecord.NewTimeRecorder("")
|
|
resp, err := dh.getDistribution(ctx)
|
|
d1 := tr.RecordSpan()
|
|
if err != nil {
|
|
node := dh.nodeManager.Get(dh.nodeID)
|
|
*failures = *failures + 1
|
|
fields := []zap.Field{zap.Int("times", *failures)}
|
|
if node != nil {
|
|
fields = append(fields, zap.Time("lastHeartbeat", node.LastHeartbeat()))
|
|
}
|
|
fields = append(fields, zap.Error(err))
|
|
log.Ctx(ctx).WithRateGroup("distHandler.pullDist", 1, 60).
|
|
RatedWarn(30.0, "failed to get data distribution", fields...)
|
|
} else {
|
|
*failures = 0
|
|
dh.handleDistResp(ctx, resp, dispatchTask)
|
|
}
|
|
log.Ctx(ctx).WithRateGroup("distHandler.pullDist", 1, 120).
|
|
RatedInfo(120.0, "pull and handle distribution done",
|
|
zap.Int("respSize", proto.Size(resp)), zap.Duration("pullDur", d1), zap.Duration("handleDur", tr.RecordSpan()))
|
|
}
|
|
|
|
func (dh *distHandler) handleDistResp(ctx context.Context, resp *querypb.GetDataDistributionResponse, dispatchTask bool) {
|
|
node := dh.nodeManager.Get(resp.GetNodeID())
|
|
if node == nil {
|
|
return
|
|
}
|
|
|
|
if time.Since(node.LastHeartbeat()) > paramtable.Get().QueryCoordCfg.HeartBeatWarningLag.GetAsDuration(time.Millisecond) {
|
|
log.Warn("node last heart beat time lag too behind", zap.Time("now", time.Now()),
|
|
zap.Time("lastHeartBeatTime", node.LastHeartbeat()), zap.Int64("nodeID", node.ID()))
|
|
}
|
|
node.SetLastHeartbeat(time.Now())
|
|
|
|
// skip update dist if no distribution change happens in query node
|
|
if resp.GetLastModifyTs() != 0 && resp.GetLastModifyTs() <= dh.lastUpdateTs {
|
|
log.RatedInfo(30, "skip update dist due to no distribution change", zap.Int64("lastModifyTs", resp.GetLastModifyTs()), zap.Int64("lastUpdateTs", dh.lastUpdateTs))
|
|
} else {
|
|
dh.lastUpdateTs = resp.GetLastModifyTs()
|
|
|
|
node.UpdateStats(
|
|
session.WithSegmentCnt(len(resp.GetSegments())),
|
|
session.WithChannelCnt(len(resp.GetChannels())),
|
|
session.WithMemCapacity(resp.GetMemCapacityInMB()),
|
|
session.WithChannelCnt(int(resp.GetCpuNum())),
|
|
)
|
|
dh.updateSegmentsDistribution(ctx, resp)
|
|
dh.updateChannelsDistribution(ctx, resp)
|
|
}
|
|
|
|
if dispatchTask {
|
|
dh.scheduler.Dispatch(dh.nodeID)
|
|
}
|
|
}
|
|
|
|
func (dh *distHandler) SetNotifyFunc(notifyFunc NotifyDelegatorChanges) {
|
|
dh.notifyFunc = notifyFunc
|
|
}
|
|
|
|
func (dh *distHandler) updateSegmentsDistribution(ctx context.Context, resp *querypb.GetDataDistributionResponse) {
|
|
updates := make([]*meta.Segment, 0, len(resp.GetSegments()))
|
|
for _, s := range resp.GetSegments() {
|
|
// To maintain compatibility with older versions of QueryNode,
|
|
// QueryCoord should neither process nor interact with L0 segments.
|
|
if s.GetLevel() == datapb.SegmentLevel_L0 {
|
|
continue
|
|
}
|
|
segmentInfo := dh.target.GetSealedSegment(ctx, s.GetCollection(), s.GetID(), meta.CurrentTargetFirst)
|
|
if segmentInfo == nil {
|
|
segmentInfo = &datapb.SegmentInfo{
|
|
ID: s.GetID(),
|
|
CollectionID: s.GetCollection(),
|
|
PartitionID: s.GetPartition(),
|
|
InsertChannel: s.GetChannel(),
|
|
Level: s.GetLevel(),
|
|
IsSorted: s.GetIsSorted(),
|
|
}
|
|
}
|
|
updates = append(updates, &meta.Segment{
|
|
SegmentInfo: segmentInfo,
|
|
Node: resp.GetNodeID(),
|
|
Version: s.GetVersion(),
|
|
LastDeltaTimestamp: s.GetLastDeltaTimestamp(),
|
|
IndexInfo: s.GetIndexInfo(),
|
|
JSONIndexField: s.GetFieldJsonIndexStats(),
|
|
})
|
|
}
|
|
|
|
dh.dist.SegmentDistManager.Update(resp.GetNodeID(), updates...)
|
|
}
|
|
|
|
func (dh *distHandler) updateChannelsDistribution(ctx context.Context, resp *querypb.GetDataDistributionResponse) {
|
|
channelMap := lo.SliceToMap(resp.GetChannels(), func(ch *querypb.ChannelVersionInfo) (string, *querypb.ChannelVersionInfo) {
|
|
return ch.GetChannel(), ch
|
|
})
|
|
|
|
updates := make([]*meta.DmChannel, 0, len(resp.GetChannels()))
|
|
for _, lview := range resp.GetLeaderViews() {
|
|
channel, ok := channelMap[lview.GetChannel()]
|
|
if !ok {
|
|
// unreachable path, querynode should return leader view and channel dist at same time
|
|
log.Ctx(ctx).WithRateGroup("distHandler.updateChannelsDistribution", 1, 60).
|
|
RatedInfo(30, "channel not found in distribution",
|
|
zap.Int64("collectionID", lview.GetCollection()),
|
|
zap.String("channel", lview.GetChannel()))
|
|
continue
|
|
}
|
|
delegatorVersion := channel.GetVersion()
|
|
|
|
// Get or create channel info
|
|
collectionID := lview.GetCollection()
|
|
channelName := lview.GetChannel()
|
|
channelInfo := dh.target.GetDmChannel(ctx, collectionID, channelName, meta.CurrentTarget)
|
|
var vChannelInfo *datapb.VchannelInfo
|
|
if channelInfo != nil {
|
|
vChannelInfo = channelInfo.VchannelInfo
|
|
} else {
|
|
vChannelInfo = &datapb.VchannelInfo{
|
|
ChannelName: channelName,
|
|
CollectionID: collectionID,
|
|
}
|
|
}
|
|
|
|
// Pre-allocate growing segments map
|
|
growings := lo.MapValues(lview.GetGrowingSegments(), func(position *msgpb.MsgPosition, id int64) *meta.Segment {
|
|
return &meta.Segment{
|
|
SegmentInfo: &datapb.SegmentInfo{
|
|
ID: id,
|
|
CollectionID: collectionID,
|
|
StartPosition: position,
|
|
InsertChannel: channelName,
|
|
},
|
|
Node: resp.GetNodeID(),
|
|
}
|
|
})
|
|
|
|
// Update DmChannel and register shard leader in same loop
|
|
dmChannel := &meta.DmChannel{
|
|
VchannelInfo: vChannelInfo,
|
|
Node: resp.NodeID,
|
|
Version: delegatorVersion,
|
|
View: &meta.LeaderView{
|
|
ID: resp.NodeID,
|
|
CollectionID: collectionID,
|
|
Channel: channelName,
|
|
Version: delegatorVersion,
|
|
Segments: lview.GetSegmentDist(),
|
|
GrowingSegments: growings,
|
|
NumOfGrowingRows: lview.GetNumOfGrowingRows(),
|
|
PartitionStatsVersions: lview.PartitionStatsVersions,
|
|
TargetVersion: lview.GetTargetVersion(),
|
|
Status: lview.GetStatus(),
|
|
},
|
|
}
|
|
updates = append(updates, dmChannel)
|
|
|
|
serviceable := checkDelegatorServiceable(ctx, dh, dmChannel.View)
|
|
// trigger pull next target until shard leader is ready
|
|
if !serviceable {
|
|
dh.lastUpdateTs = 0
|
|
}
|
|
}
|
|
|
|
newLeaderOnNode := dh.dist.ChannelDistManager.Update(resp.GetNodeID(), updates...)
|
|
if dh.notifyFunc != nil {
|
|
collectionIDs := typeutil.NewUniqueSet()
|
|
for _, ch := range newLeaderOnNode {
|
|
collectionIDs.Insert(ch.VchannelInfo.CollectionID)
|
|
}
|
|
dh.notifyFunc(collectionIDs.Collect()...)
|
|
}
|
|
}
|
|
|
|
func checkDelegatorServiceable(ctx context.Context, dh *distHandler, view *meta.LeaderView) bool {
|
|
log := log.Ctx(ctx).
|
|
WithRateGroup(fmt.Sprintf("distHandler.updateChannelsDistribution.%s", view.Channel), 1, 60).
|
|
With(
|
|
zap.Int64("nodeID", view.ID),
|
|
zap.String("channel", view.Channel),
|
|
)
|
|
|
|
if status := view.Status; status != nil {
|
|
if !status.GetServiceable() {
|
|
log.RatedInfo(10, "delegator is not serviceable", zap.Int64("queryViewVersion", view.TargetVersion))
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
// check leader data ready for version before 2.5.8
|
|
if err := utils.CheckDelegatorDataReady(dh.nodeManager, dh.target, view, meta.CurrentTarget); err != nil {
|
|
log.RatedInfo(10, "delegator is not serviceable due to distribution not ready", zap.Error(err))
|
|
view.Status = &querypb.LeaderViewStatus{
|
|
Serviceable: false,
|
|
}
|
|
return false
|
|
}
|
|
|
|
// if target version hasn't been synced, delegator will get empty readable segment list
|
|
// so shard leader should be unserviceable until target version is synced
|
|
currentTargetVersion := dh.target.GetCollectionTargetVersion(ctx, view.CollectionID, meta.CurrentTarget)
|
|
if view.TargetVersion <= 0 {
|
|
log.RatedInfo(10, "delegator is not serviceable due to target version not ready",
|
|
zap.Int64("currentTargetVersion", currentTargetVersion),
|
|
zap.Int64("leaderTargetVersion", view.TargetVersion))
|
|
view.Status = &querypb.LeaderViewStatus{
|
|
Serviceable: false,
|
|
}
|
|
return false
|
|
}
|
|
|
|
view.Status = &querypb.LeaderViewStatus{
|
|
Serviceable: true,
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (dh *distHandler) getDistribution(ctx context.Context) (*querypb.GetDataDistributionResponse, error) {
|
|
dh.mu.Lock()
|
|
defer dh.mu.Unlock()
|
|
|
|
ctx, cancel := context.WithTimeout(ctx, paramtable.Get().QueryCoordCfg.DistributionRequestTimeout.GetAsDuration(time.Millisecond))
|
|
defer cancel()
|
|
resp, err := dh.client.GetDataDistribution(ctx, dh.nodeID, &querypb.GetDataDistributionRequest{
|
|
Base: commonpbutil.NewMsgBase(
|
|
commonpbutil.WithMsgType(commonpb.MsgType_GetDistribution),
|
|
),
|
|
LastUpdateTs: dh.lastUpdateTs,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !merr.Ok(resp.GetStatus()) {
|
|
return nil, merr.Error(resp.GetStatus())
|
|
}
|
|
return resp, nil
|
|
}
|
|
|
|
func (dh *distHandler) stop() {
|
|
dh.stopOnce.Do(func() {
|
|
close(dh.c)
|
|
dh.wg.Wait()
|
|
|
|
// clear dist
|
|
dh.dist.ChannelDistManager.Update(dh.nodeID)
|
|
dh.dist.SegmentDistManager.Update(dh.nodeID)
|
|
})
|
|
}
|
|
|
|
func newDistHandler(
|
|
ctx context.Context,
|
|
nodeID int64,
|
|
client session.Cluster,
|
|
nodeManager *session.NodeManager,
|
|
scheduler task.Scheduler,
|
|
dist *meta.DistributionManager,
|
|
targetMgr meta.TargetManagerInterface,
|
|
notifyFunc NotifyDelegatorChanges,
|
|
) *distHandler {
|
|
h := &distHandler{
|
|
nodeID: nodeID,
|
|
c: make(chan struct{}),
|
|
client: client,
|
|
nodeManager: nodeManager,
|
|
scheduler: scheduler,
|
|
dist: dist,
|
|
target: targetMgr,
|
|
notifyFunc: notifyFunc,
|
|
}
|
|
h.wg.Add(1)
|
|
go h.start(ctx)
|
|
return h
|
|
}
|