milvus/internal/datanode/buffer_test.go
congqixia 41af0a98fa
Use go-api/v2 for milvus-proto (#24770)
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2023-06-09 01:28:37 +08:00

327 lines
9.5 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 (
"container/heap"
"context"
"fmt"
"math"
"strconv"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"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-proto/go-api/v2/schemapb"
"github.com/milvus-io/milvus/internal/datanode/allocator"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/storage"
"github.com/milvus-io/milvus/pkg/common"
"github.com/milvus-io/milvus/pkg/util/paramtable"
)
func genTestCollectionSchema(dim int64, vectorType schemapb.DataType) *schemapb.CollectionSchema {
floatVecFieldSchema := &schemapb.FieldSchema{
FieldID: 100,
Name: "vec",
DataType: vectorType,
TypeParams: []*commonpb.KeyValuePair{
{
Key: common.DimKey,
Value: fmt.Sprintf("%d", dim),
},
},
}
schema := &schemapb.CollectionSchema{
Name: "collection-0",
Fields: []*schemapb.FieldSchema{
floatVecFieldSchema,
},
}
return schema
}
func TestBufferData(t *testing.T) {
paramtable.Get().Save(Params.DataNodeCfg.FlushInsertBufferSize.Key, strconv.FormatInt(16*(1<<20), 10)) // 16 MB
tests := []struct {
isValid bool
indim int64
expectedLimit int64
vectorType schemapb.DataType
description string
}{
{true, 1, 4194304, schemapb.DataType_FloatVector, "Smallest of the DIM"},
{true, 128, 32768, schemapb.DataType_FloatVector, "Normal DIM"},
{true, 32768, 128, schemapb.DataType_FloatVector, "Largest DIM"},
{true, 4096, 32768, schemapb.DataType_BinaryVector, "Normal binary"},
{false, 0, 0, schemapb.DataType_FloatVector, "Illegal DIM"},
}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
idata, err := newBufferData(genTestCollectionSchema(test.indim, test.vectorType))
if test.isValid {
assert.NoError(t, err)
assert.NotNil(t, idata)
assert.Equal(t, test.expectedLimit, idata.limit)
assert.Zero(t, idata.size)
capacity := idata.effectiveCap()
assert.Equal(t, test.expectedLimit, capacity)
} else {
assert.Error(t, err)
assert.Nil(t, idata)
}
})
}
}
func TestBufferData_updateTimeRange(t *testing.T) {
paramtable.Get().Save(Params.DataNodeCfg.FlushInsertBufferSize.Key, strconv.FormatInt(16*(1<<20), 10)) // 16 MB
type testCase struct {
tag string
trs []TimeRange
expectFrom Timestamp
expectTo Timestamp
}
cases := []testCase{
{
tag: "no input range",
expectTo: 0,
expectFrom: math.MaxUint64,
},
{
tag: "single range",
trs: []TimeRange{
{timestampMin: 100, timestampMax: 200},
},
expectFrom: 100,
expectTo: 200,
},
{
tag: "multiple range",
trs: []TimeRange{
{timestampMin: 150, timestampMax: 250},
{timestampMin: 100, timestampMax: 200},
{timestampMin: 50, timestampMax: 180},
},
expectFrom: 50,
expectTo: 250,
},
}
for _, tc := range cases {
t.Run(tc.tag, func(t *testing.T) {
bd, err := newBufferData(genTestCollectionSchema(16, schemapb.DataType_FloatVector))
require.NoError(t, err)
for _, tr := range tc.trs {
bd.updateTimeRange(tr)
}
assert.Equal(t, tc.expectFrom, bd.tsFrom)
assert.Equal(t, tc.expectTo, bd.tsTo)
})
}
}
func TestPriorityQueueString(t *testing.T) {
item := &Item{
segmentID: 0,
memorySize: 1,
}
assert.Equal(t, "<segmentID=0, memorySize=1>", item.String())
pq := &PriorityQueue{}
heap.Push(pq, item)
assert.Equal(t, "[<segmentID=0, memorySize=1>]", pq.String())
}
func Test_CompactSegBuff(t *testing.T) {
channelSegments := make(map[UniqueID]*Segment)
delBufferManager := &DeltaBufferManager{
channel: &ChannelMeta{
segments: channelSegments,
},
delBufHeap: &PriorityQueue{},
}
//1. set compactTo and compactFrom
targetSeg := &Segment{segmentID: 3333}
targetSeg.setType(datapb.SegmentType_Flushed)
seg1 := &Segment{
segmentID: 1111,
compactedTo: targetSeg.segmentID,
}
seg1.setType(datapb.SegmentType_Compacted)
seg2 := &Segment{
segmentID: 2222,
compactedTo: targetSeg.segmentID,
}
seg2.setType(datapb.SegmentType_Compacted)
channelSegments[seg1.segmentID] = seg1
channelSegments[seg2.segmentID] = seg2
channelSegments[targetSeg.segmentID] = targetSeg
//2. set up deleteDataBuf for seg1 and seg2
delDataBuf1 := newDelDataBuf(seg1.segmentID)
delDataBuf1.EntriesNum++
delDataBuf1.updateStartAndEndPosition(nil, &msgpb.MsgPosition{Timestamp: 50})
delBufferManager.updateMeta(seg1.segmentID, delDataBuf1)
heap.Push(delBufferManager.delBufHeap, delDataBuf1.item)
delDataBuf2 := newDelDataBuf(seg2.segmentID)
delDataBuf2.EntriesNum++
delDataBuf2.updateStartAndEndPosition(nil, &msgpb.MsgPosition{Timestamp: 50})
delBufferManager.updateMeta(seg2.segmentID, delDataBuf2)
heap.Push(delBufferManager.delBufHeap, delDataBuf2.item)
//3. test compact
delBufferManager.UpdateCompactedSegments()
//4. expect results in two aspects:
//4.1 compactedFrom segments are removed from delBufferManager
//4.2 compactedTo seg is set properly with correct entriesNum
_, seg1Exist := delBufferManager.Load(seg1.segmentID)
_, seg2Exist := delBufferManager.Load(seg2.segmentID)
assert.False(t, seg1Exist)
assert.False(t, seg2Exist)
assert.Equal(t, int64(2), delBufferManager.GetEntriesNum(targetSeg.segmentID))
// test item of compactedToSegID is correct
targetSegBuf, ok := delBufferManager.Load(targetSeg.segmentID)
assert.True(t, ok)
assert.NotNil(t, targetSegBuf.item)
assert.Equal(t, targetSeg.segmentID, targetSegBuf.item.segmentID)
//5. test roll and evict (https://github.com/milvus-io/milvus/issues/20501)
delBufferManager.channel.rollDeleteBuffer(targetSeg.segmentID)
_, segCompactedToExist := delBufferManager.Load(targetSeg.segmentID)
assert.False(t, segCompactedToExist)
delBufferManager.channel.evictHistoryDeleteBuffer(targetSeg.segmentID, &msgpb.MsgPosition{
Timestamp: 100,
})
cp := delBufferManager.channel.getChannelCheckpoint(&msgpb.MsgPosition{
Timestamp: 200,
})
assert.Equal(t, Timestamp(200), cp.Timestamp) // evict all buffer, use ttPos as cp
}
func TestUpdateCompactedSegments(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
cm := storage.NewLocalChunkManager(storage.RootPath(deleteNodeTestDir))
defer cm.RemoveWithPrefix(ctx, cm.RootPath())
fm := NewRendezvousFlushManager(allocator.NewMockAllocator(t), cm, nil, func(*segmentFlushPack) {}, emptyFlushAndDropFunc)
chanName := "datanode-test-FlowGraphDeletenode-showDelBuf"
testPath := "/test/datanode/root/meta"
assert.NoError(t, clearEtcd(testPath))
Params.BaseTable.Save("etcd.rootPath", "/test/datanode/root")
channel := ChannelMeta{
segments: make(map[UniqueID]*Segment),
}
c := &nodeConfig{
channel: &channel,
vChannelName: chanName,
}
delBufManager := &DeltaBufferManager{
channel: &channel,
delBufHeap: &PriorityQueue{},
}
delNode, err := newDeleteNode(ctx, fm, delBufManager, make(chan string, 1), c)
require.NoError(t, err)
tests := []struct {
description string
compactToExist bool
compactedToIDs []UniqueID
compactedFromIDs []UniqueID
expectedSegsRemain []UniqueID
}{
{"zero segments", false,
[]UniqueID{}, []UniqueID{}, []UniqueID{}},
{"segment no compaction", false,
[]UniqueID{}, []UniqueID{}, []UniqueID{100, 101}},
{"segment compacted", true,
[]UniqueID{200}, []UniqueID{103}, []UniqueID{100, 101}},
{"segment compacted 100>201", true,
[]UniqueID{201}, []UniqueID{100}, []UniqueID{101, 201}},
{"segment compacted 100+101>201", true,
[]UniqueID{201, 201}, []UniqueID{100, 101}, []UniqueID{201}},
{"segment compacted 100>201, 101>202", true,
[]UniqueID{201, 202}, []UniqueID{100, 101}, []UniqueID{201, 202}},
// false
{"segment compacted 100>201", false,
[]UniqueID{201}, []UniqueID{100}, []UniqueID{101}},
{"segment compacted 100+101>201", false,
[]UniqueID{201, 201}, []UniqueID{100, 101}, []UniqueID{}},
{"segment compacted 100>201, 101>202", false,
[]UniqueID{201, 202}, []UniqueID{100, 101}, []UniqueID{}},
}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
if test.compactToExist {
for _, segID := range test.compactedToIDs {
seg := Segment{
segmentID: segID,
numRows: 10,
}
seg.setType(datapb.SegmentType_Flushed)
channel.segments[segID] = &seg
}
} else { // clear all segments in channel
channel.segments = make(map[UniqueID]*Segment)
}
for i, segID := range test.compactedFromIDs {
seg := Segment{
segmentID: segID,
compactedTo: test.compactedToIDs[i],
}
seg.setType(datapb.SegmentType_Compacted)
channel.segments[segID] = &seg
}
delNode.delBufferManager.UpdateCompactedSegments()
for _, remain := range test.expectedSegsRemain {
delNode.channel.hasSegment(remain, true)
}
})
}
}