mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-06 05:49:24 +08:00
26f06dd732
Signed-off-by: SimFG <bang.fu@zilliz.com>
353 lines
10 KiB
Go
353 lines
10 KiB
Go
// 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 datanode
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import (
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"context"
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"path"
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"strconv"
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"time"
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"github.com/cockroachdb/errors"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/datanode/allocator"
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"github.com/milvus-io/milvus/internal/proto/datapb"
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"github.com/milvus-io/milvus/internal/proto/etcdpb"
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"github.com/milvus-io/milvus/internal/storage"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/conc"
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"github.com/milvus-io/milvus/pkg/util/metautil"
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)
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var (
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errUploadToBlobStorage = errors.New("upload to blob storage wrong")
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errDownloadFromBlobStorage = errors.New("download from blob storage wrong")
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)
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type downloader interface {
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// donload downloads insert-binlogs, stats-binlogs, and, delta-binlogs from blob storage for given paths.
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// The paths are 1 group of binlog paths generated by 1 `Serialize`.
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//
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// errDownloadFromBlobStorage is returned if ctx is canceled from outside while a downloading is inprogress.
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// Beware of the ctx here, if no timeout or cancel is applied to this ctx, this downloading may retry forever.
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download(ctx context.Context, paths []string) ([]*Blob, error)
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}
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type uploader interface {
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// upload saves InsertData and DeleteData into blob storage, stats binlogs are generated from InsertData.
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//
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// errUploadToBlobStorage is returned if ctx is canceled from outside while a uploading is inprogress.
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// Beware of the ctx here, if no timeout or cancel is applied to this ctx, this uploading may retry forever.
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uploadInsertLog(ctx context.Context, segID, partID UniqueID, iData *InsertData, meta *etcdpb.CollectionMeta) (map[UniqueID]*datapb.FieldBinlog, error)
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uploadStatsLog(ctx context.Context, segID, partID UniqueID, iData *InsertData, stats *storage.PrimaryKeyStats, totRows int64, meta *etcdpb.CollectionMeta) (map[UniqueID]*datapb.FieldBinlog, map[UniqueID]*datapb.FieldBinlog, error)
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uploadDeltaLog(ctx context.Context, segID, partID UniqueID, dData *DeleteData, meta *etcdpb.CollectionMeta) ([]*datapb.FieldBinlog, error)
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}
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type binlogIO struct {
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storage.ChunkManager
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allocator.Allocator
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}
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var (
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_ downloader = (*binlogIO)(nil)
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_ uploader = (*binlogIO)(nil)
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)
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func (b *binlogIO) download(ctx context.Context, paths []string) ([]*Blob, error) {
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log.Debug("down load", zap.Strings("path", paths))
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resp := make([]*Blob, len(paths))
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if len(paths) == 0 {
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return resp, nil
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}
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futures := make([]*conc.Future[any], len(paths))
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for i, path := range paths {
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localPath := path
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future := getMultiReadPool().Submit(func() (any, error) {
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var vs []byte
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err := errStart
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for err != nil {
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select {
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case <-ctx.Done():
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log.Warn("ctx done when downloading kvs from blob storage", zap.Strings("paths", paths))
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return nil, errDownloadFromBlobStorage
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default:
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if err != errStart {
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time.Sleep(50 * time.Millisecond)
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}
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vs, err = b.Read(ctx, localPath)
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}
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}
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return vs, nil
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})
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futures[i] = future
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}
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for i := range futures {
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if !futures[i].OK() {
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return nil, futures[i].Err()
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} else {
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resp[i] = &Blob{Value: futures[i].Value().([]byte)}
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}
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}
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return resp, nil
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}
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func (b *binlogIO) uploadSegmentFiles(
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ctx context.Context,
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CollectionID UniqueID,
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segID UniqueID,
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kvs map[string][]byte,
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) error {
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log.Debug("update", zap.Int64("collectionID", CollectionID), zap.Int64("segmentID", segID))
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if len(kvs) == 0 {
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return nil
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}
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futures := make([]*conc.Future[any], 0)
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for key, val := range kvs {
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localPath := key
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localVal := val
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future := getMultiReadPool().Submit(func() (any, error) {
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err := errStart
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for err != nil {
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select {
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case <-ctx.Done():
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log.Warn("ctx done when saving kvs to blob storage",
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zap.Int64("collectionID", CollectionID),
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zap.Int64("segmentID", segID),
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zap.Int("number of kvs", len(kvs)))
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return nil, errUploadToBlobStorage
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default:
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if err != errStart {
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time.Sleep(50 * time.Millisecond)
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}
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err = b.Write(ctx, localPath, localVal)
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}
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}
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return nil, nil
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})
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futures = append(futures, future)
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}
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err := conc.AwaitAll(futures...)
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if err != nil {
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return err
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}
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return nil
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}
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// genDeltaBlobs returns key, value
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func (b *binlogIO) genDeltaBlobs(data *DeleteData, collID, partID, segID UniqueID) (string, []byte, error) {
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dCodec := storage.NewDeleteCodec()
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blob, err := dCodec.Serialize(collID, partID, segID, data)
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if err != nil {
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return "", nil, err
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}
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idx, err := b.AllocOne()
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if err != nil {
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return "", nil, err
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}
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k := metautil.JoinIDPath(collID, partID, segID, idx)
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key := path.Join(b.ChunkManager.RootPath(), common.SegmentDeltaLogPath, k)
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return key, blob.GetValue(), nil
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}
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// genInsertBlobs returns insert-paths and save blob to kvs
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func (b *binlogIO) genInsertBlobs(data *InsertData, partID, segID UniqueID, iCodec *storage.InsertCodec, kvs map[string][]byte) (map[UniqueID]*datapb.FieldBinlog, error) {
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inlogs, err := iCodec.Serialize(partID, segID, data)
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if err != nil {
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return nil, err
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}
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inpaths := make(map[UniqueID]*datapb.FieldBinlog)
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notifyGenIdx := make(chan struct{})
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defer close(notifyGenIdx)
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generator, err := b.GetGenerator(len(inlogs), notifyGenIdx)
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if err != nil {
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return nil, err
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}
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for _, blob := range inlogs {
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// Blob Key is generated by Serialize from int64 fieldID in collection schema, which won't raise error in ParseInt
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fID, _ := strconv.ParseInt(blob.GetKey(), 10, 64)
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k := metautil.JoinIDPath(iCodec.Schema.GetID(), partID, segID, fID, <-generator)
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key := path.Join(b.ChunkManager.RootPath(), common.SegmentInsertLogPath, k)
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value := blob.GetValue()
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fileLen := len(value)
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kvs[key] = value
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inpaths[fID] = &datapb.FieldBinlog{
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FieldID: fID,
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Binlogs: []*datapb.Binlog{{LogSize: int64(fileLen), LogPath: key, EntriesNum: blob.RowNum}},
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}
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}
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return inpaths, nil
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}
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// genStatBlobs return stats log paths and save blob to kvs
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func (b *binlogIO) genStatBlobs(stats *storage.PrimaryKeyStats, partID, segID UniqueID, iCodec *storage.InsertCodec, kvs map[string][]byte, totRows int64) (map[UniqueID]*datapb.FieldBinlog, error) {
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statBlob, err := iCodec.SerializePkStats(stats, totRows)
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if err != nil {
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return nil, err
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}
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statPaths := make(map[UniqueID]*datapb.FieldBinlog)
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idx, err := b.AllocOne()
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if err != nil {
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return nil, err
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}
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fID, _ := strconv.ParseInt(statBlob.GetKey(), 10, 64)
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k := metautil.JoinIDPath(iCodec.Schema.GetID(), partID, segID, fID, idx)
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key := path.Join(b.ChunkManager.RootPath(), common.SegmentStatslogPath, k)
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value := statBlob.GetValue()
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fileLen := len(value)
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kvs[key] = value
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statPaths[fID] = &datapb.FieldBinlog{
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FieldID: fID,
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Binlogs: []*datapb.Binlog{{LogSize: int64(fileLen), LogPath: key, EntriesNum: totRows}},
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}
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return statPaths, nil
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}
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// update stats log
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// also update with insert data if not nil
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func (b *binlogIO) uploadStatsLog(
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ctx context.Context,
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segID UniqueID,
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partID UniqueID,
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iData *InsertData,
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stats *storage.PrimaryKeyStats,
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totRows int64,
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meta *etcdpb.CollectionMeta,
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) (map[UniqueID]*datapb.FieldBinlog, map[UniqueID]*datapb.FieldBinlog, error) {
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var inPaths map[int64]*datapb.FieldBinlog
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var err error
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iCodec := storage.NewInsertCodecWithSchema(meta)
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kvs := make(map[string][]byte)
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if !iData.IsEmpty() {
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inPaths, err = b.genInsertBlobs(iData, partID, segID, iCodec, kvs)
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if err != nil {
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log.Warn("generate insert blobs wrong",
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zap.Int64("collectionID", iCodec.Schema.GetID()),
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zap.Int64("segmentID", segID),
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zap.Error(err))
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return nil, nil, err
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}
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}
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statPaths, err := b.genStatBlobs(stats, partID, segID, iCodec, kvs, totRows)
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if err != nil {
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return nil, nil, err
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}
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err = b.uploadSegmentFiles(ctx, meta.GetID(), segID, kvs)
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if err != nil {
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return nil, nil, err
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}
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return inPaths, statPaths, nil
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}
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func (b *binlogIO) uploadInsertLog(
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ctx context.Context,
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segID UniqueID,
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partID UniqueID,
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iData *InsertData,
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meta *etcdpb.CollectionMeta,
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) (map[UniqueID]*datapb.FieldBinlog, error) {
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iCodec := storage.NewInsertCodecWithSchema(meta)
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kvs := make(map[string][]byte)
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if iData.IsEmpty() {
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log.Warn("binlog io uploading empty insert data",
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zap.Int64("segmentID", segID),
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zap.Int64("collectionID", iCodec.Schema.GetID()),
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)
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return nil, nil
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}
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inpaths, err := b.genInsertBlobs(iData, partID, segID, iCodec, kvs)
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if err != nil {
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return nil, err
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}
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err = b.uploadSegmentFiles(ctx, meta.GetID(), segID, kvs)
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if err != nil {
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return nil, err
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}
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return inpaths, nil
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}
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func (b *binlogIO) uploadDeltaLog(
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ctx context.Context,
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segID UniqueID,
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partID UniqueID,
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dData *DeleteData,
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meta *etcdpb.CollectionMeta,
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) ([]*datapb.FieldBinlog, error) {
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var (
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deltaInfo = make([]*datapb.FieldBinlog, 0)
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kvs = make(map[string][]byte)
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)
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if dData.RowCount > 0 {
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k, v, err := b.genDeltaBlobs(dData, meta.GetID(), partID, segID)
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if err != nil {
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log.Warn("generate delta blobs wrong",
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zap.Int64("collectionID", meta.GetID()),
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zap.Int64("segmentID", segID),
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zap.Error(err))
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return nil, err
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}
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kvs[k] = v
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deltaInfo = append(deltaInfo, &datapb.FieldBinlog{
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FieldID: 0, // TODO: Not useful on deltalogs, FieldID shall be ID of primary key field
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Binlogs: []*datapb.Binlog{{
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EntriesNum: dData.RowCount,
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LogPath: k,
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LogSize: int64(len(v)),
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}},
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})
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} else {
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return nil, nil
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}
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err := b.uploadSegmentFiles(ctx, meta.GetID(), segID, kvs)
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if err != nil {
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return nil, err
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}
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return deltaInfo, nil
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}
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