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global sort: global sort whole process in ut (#49419)
ref #48952
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed 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 external | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "slices" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/google/uuid" | ||
| "github.com/pingcap/tidb/br/pkg/lightning/backend/kv" | ||
| "github.com/pingcap/tidb/br/pkg/lightning/common" | ||
| "github.com/pingcap/tidb/br/pkg/storage" | ||
| dbkv "github.com/pingcap/tidb/pkg/kv" | ||
| "github.com/pingcap/tidb/pkg/util/size" | ||
| "github.com/stretchr/testify/require" | ||
| "golang.org/x/exp/rand" | ||
| ) | ||
|
|
||
| func TestGlobalSortLocalBasic(t *testing.T) { | ||
| // 1. write data step | ||
| seed := time.Now().Unix() | ||
| rand.Seed(uint64(seed)) | ||
| t.Logf("seed: %d", seed) | ||
| ctx := context.Background() | ||
| memStore := storage.NewMemStorage() | ||
| memSizeLimit := (rand.Intn(10) + 1) * 400 | ||
| lastStepDatas := make([]string, 0, 10) | ||
| lastStepStats := make([]string, 0, 10) | ||
| var startKey, endKey dbkv.Key | ||
|
|
||
| closeFn := func(s *WriterSummary) { | ||
| for _, stat := range s.MultipleFilesStats { | ||
| for i := range stat.Filenames { | ||
| lastStepDatas = append(lastStepDatas, stat.Filenames[i][0]) | ||
| lastStepStats = append(lastStepStats, stat.Filenames[i][1]) | ||
| } | ||
| } | ||
| if len(startKey) == 0 && len(endKey) == 0 { | ||
| startKey = s.Min.Clone() | ||
| endKey = s.Max.Clone().Next() | ||
| } | ||
| startKey = BytesMin(startKey, s.Min.Clone()) | ||
| endKey = BytesMax(endKey, s.Max.Clone().Next()) | ||
| } | ||
|
|
||
| w := NewWriterBuilder(). | ||
| SetPropSizeDistance(100). | ||
| SetPropKeysDistance(2). | ||
| SetMemorySizeLimit(uint64(memSizeLimit)). | ||
| SetBlockSize(memSizeLimit). | ||
| SetOnCloseFunc(closeFn). | ||
| Build(memStore, "/test", "0") | ||
|
|
||
| writer := NewEngineWriter(w) | ||
| kvCnt := rand.Intn(10) + 10000 | ||
| kvs := make([]common.KvPair, kvCnt) | ||
| for i := 0; i < kvCnt; i++ { | ||
| kvs[i] = common.KvPair{ | ||
| Key: []byte(uuid.New().String()), | ||
| Val: []byte("56789"), | ||
| } | ||
| } | ||
| slices.SortFunc(kvs, func(i, j common.KvPair) int { | ||
| return bytes.Compare(i.Key, j.Key) | ||
| }) | ||
|
|
||
| require.NoError(t, writer.AppendRows(ctx, nil, kv.MakeRowsFromKvPairs(kvs))) | ||
| _, err := writer.Close(ctx) | ||
| require.NoError(t, err) | ||
|
|
||
| // 2. read and sort step | ||
| testReadAndCompare(ctx, t, kvs, memStore, lastStepDatas, lastStepStats, startKey, memSizeLimit) | ||
| } | ||
|
|
||
| func TestGlobalSortLocalWithMerge(t *testing.T) { | ||
| // 1. write data step | ||
| seed := time.Now().Unix() | ||
| rand.Seed(uint64(seed)) | ||
| t.Logf("seed: %d", seed) | ||
| ctx := context.Background() | ||
| memStore := storage.NewMemStorage() | ||
| memSizeLimit := (rand.Intn(10) + 1) * 400 | ||
|
|
||
| w := NewWriterBuilder(). | ||
| SetPropSizeDistance(100). | ||
| SetPropKeysDistance(2). | ||
| SetMemorySizeLimit(uint64(memSizeLimit)). | ||
| SetBlockSize(memSizeLimit). | ||
| Build(memStore, "/test", "0") | ||
|
|
||
| writer := NewEngineWriter(w) | ||
| kvCnt := rand.Intn(10) + 10000 | ||
| kvs := make([]common.KvPair, kvCnt) | ||
| for i := 0; i < kvCnt; i++ { | ||
| kvs[i] = common.KvPair{ | ||
| Key: []byte(uuid.New().String()), | ||
| Val: []byte("56789"), | ||
| } | ||
| } | ||
|
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| slices.SortFunc(kvs, func(i, j common.KvPair) int { | ||
| return bytes.Compare(i.Key, j.Key) | ||
| }) | ||
|
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| require.NoError(t, writer.AppendRows(ctx, nil, kv.MakeRowsFromKvPairs(kvs))) | ||
| _, err := writer.Close(ctx) | ||
| require.NoError(t, err) | ||
|
|
||
| // 2. merge step | ||
| datas, stats, err := GetAllFileNames(ctx, memStore, "") | ||
| require.NoError(t, err) | ||
|
|
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| dataGroup, _ := splitDataAndStatFiles(datas, stats) | ||
|
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| lastStepDatas := make([]string, 0, 10) | ||
| lastStepStats := make([]string, 0, 10) | ||
| var startKey, endKey dbkv.Key | ||
|
|
||
| closeFn := func(s *WriterSummary) { | ||
| for _, stat := range s.MultipleFilesStats { | ||
| for i := range stat.Filenames { | ||
| lastStepDatas = append(lastStepDatas, stat.Filenames[i][0]) | ||
| lastStepStats = append(lastStepStats, stat.Filenames[i][1]) | ||
| } | ||
|
|
||
| } | ||
| if len(startKey) == 0 && len(endKey) == 0 { | ||
| startKey = s.Min.Clone() | ||
| endKey = s.Max.Clone().Next() | ||
| } | ||
| startKey = BytesMin(startKey, s.Min.Clone()) | ||
| endKey = BytesMax(endKey, s.Max.Clone().Next()) | ||
| } | ||
|
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||
| for _, group := range dataGroup { | ||
| MergeOverlappingFiles( | ||
| ctx, | ||
| group, | ||
| memStore, | ||
| int64(5*size.MB), | ||
| 100, | ||
| "/test2", | ||
| 100, | ||
| 8*1024, | ||
| 100, | ||
| 2, | ||
| closeFn, | ||
| 1, | ||
| true, | ||
| ) | ||
| } | ||
|
|
||
| // 3. read and sort step | ||
| testReadAndCompare(ctx, t, kvs, memStore, lastStepDatas, lastStepStats, startKey, memSizeLimit) | ||
| } |
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