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table_restore_test.go
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table_restore_test.go
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// Copyright 2022 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 restore
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strconv"
"strings"
"testing"
"time"
"unicode/utf8"
"github.com/DATA-DOG/go-sqlmock"
"github.com/docker/go-units"
"github.com/golang/mock/gomock"
"github.com/google/uuid"
"github.com/pingcap/errors"
"github.com/pingcap/failpoint"
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/pingcap/tidb/br/pkg/lightning/backend"
"github.com/pingcap/tidb/br/pkg/lightning/backend/kv"
"github.com/pingcap/tidb/br/pkg/lightning/backend/noop"
"github.com/pingcap/tidb/br/pkg/lightning/backend/tidb"
"github.com/pingcap/tidb/br/pkg/lightning/checkpoints"
"github.com/pingcap/tidb/br/pkg/lightning/common"
"github.com/pingcap/tidb/br/pkg/lightning/config"
"github.com/pingcap/tidb/br/pkg/lightning/errormanager"
"github.com/pingcap/tidb/br/pkg/lightning/glue"
"github.com/pingcap/tidb/br/pkg/lightning/log"
"github.com/pingcap/tidb/br/pkg/lightning/metric"
"github.com/pingcap/tidb/br/pkg/lightning/mydump"
"github.com/pingcap/tidb/br/pkg/lightning/verification"
"github.com/pingcap/tidb/br/pkg/lightning/web"
"github.com/pingcap/tidb/br/pkg/lightning/worker"
"github.com/pingcap/tidb/br/pkg/mock"
"github.com/pingcap/tidb/br/pkg/storage"
"github.com/pingcap/tidb/ddl"
"github.com/pingcap/tidb/parser"
"github.com/pingcap/tidb/parser/ast"
"github.com/pingcap/tidb/parser/model"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/store/pdtypes"
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/types"
tmock "github.com/pingcap/tidb/util/mock"
filter "github.com/pingcap/tidb/util/table-filter"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
)
type tableRestoreSuiteBase struct {
tr *TableRestore
cfg *config.Config
tableInfo *checkpoints.TidbTableInfo
dbInfo *checkpoints.TidbDBInfo
tableMeta *mydump.MDTableMeta
store storage.ExternalStorage
}
func (s *tableRestoreSuiteBase) setupSuite(t *testing.T) {
web.EnableCurrentProgress()
// Produce a mock table info
p := parser.New()
p.SetSQLMode(mysql.ModeANSIQuotes)
se := tmock.NewContext()
node, err := p.ParseOneStmt(`
CREATE TABLE "table" (
a INT,
b INT,
c INT,
KEY (b)
)
`, "", "")
require.NoError(t, err)
core, err := ddl.MockTableInfo(se, node.(*ast.CreateTableStmt), 0xabcdef)
require.NoError(t, err)
core.State = model.StatePublic
s.tableInfo = &checkpoints.TidbTableInfo{Name: "table", DB: "db", Core: core}
s.dbInfo = &checkpoints.TidbDBInfo{
Name: "db",
Tables: map[string]*checkpoints.TidbTableInfo{"table": s.tableInfo},
}
// Write some sample SQL dump
fakeDataDir := t.TempDir()
store, err := storage.NewLocalStorage(fakeDataDir)
require.NoError(t, err)
s.store = store
fakeDataFilesCount := 6
fakeDataFilesContent := []byte("INSERT INTO `table` VALUES (1, 2, 3);")
require.Equal(t, 37, len(fakeDataFilesContent))
fakeDataFiles := make([]mydump.FileInfo, 0, fakeDataFilesCount)
for i := 1; i <= fakeDataFilesCount; i++ {
fakeFileName := fmt.Sprintf("db.table.%d.sql", i)
fakeDataPath := filepath.Join(fakeDataDir, fakeFileName)
err = os.WriteFile(fakeDataPath, fakeDataFilesContent, 0o644)
require.NoError(t, err)
fakeDataFiles = append(fakeDataFiles, mydump.FileInfo{
TableName: filter.Table{Schema: "db", Name: "table"},
FileMeta: mydump.SourceFileMeta{
Path: fakeFileName,
Type: mydump.SourceTypeSQL,
SortKey: strconv.Itoa(i),
FileSize: 37,
},
})
}
fakeCsvContent := []byte("1,2,3\r\n4,5,6\r\n")
csvName := "db.table.99.csv"
err = os.WriteFile(filepath.Join(fakeDataDir, csvName), fakeCsvContent, 0o644)
require.NoError(t, err)
fakeDataFiles = append(fakeDataFiles, mydump.FileInfo{
TableName: filter.Table{Schema: "db", Name: "table"},
FileMeta: mydump.SourceFileMeta{
Path: csvName,
Type: mydump.SourceTypeCSV,
SortKey: "99",
FileSize: 14,
},
})
s.tableMeta = &mydump.MDTableMeta{
DB: "db",
Name: "table",
TotalSize: 222,
SchemaFile: mydump.FileInfo{
TableName: filter.Table{Schema: "db", Name: "table"},
FileMeta: mydump.SourceFileMeta{
Path: "db.table-schema.sql",
Type: mydump.SourceTypeTableSchema,
},
},
DataFiles: fakeDataFiles,
}
}
func (s *tableRestoreSuiteBase) setupTest(t *testing.T) {
// Collect into the test TableRestore structure
var err error
s.tr, err = NewTableRestore("`db`.`table`", s.tableMeta, s.dbInfo, s.tableInfo, &checkpoints.TableCheckpoint{}, nil)
require.NoError(t, err)
s.cfg = config.NewConfig()
s.cfg.Mydumper.BatchSize = 111
s.cfg.App.TableConcurrency = 2
}
type tableRestoreSuite struct {
suite.Suite
tableRestoreSuiteBase
}
func TestTableRestoreSuite(t *testing.T) {
suite.Run(t, new(tableRestoreSuite))
}
func (s *tableRestoreSuite) SetupSuite() {
s.setupSuite(s.T())
}
func (s *tableRestoreSuite) SetupTest() {
s.setupTest(s.T())
}
func (s *tableRestoreSuite) TestPopulateChunks() {
_ = failpoint.Enable("github.com/pingcap/tidb/br/pkg/lightning/restore/PopulateChunkTimestamp", "return(1234567897)")
defer func() {
_ = failpoint.Disable("github.com/pingcap/tidb/br/pkg/lightning/restore/PopulateChunkTimestamp")
}()
cp := &checkpoints.TableCheckpoint{
Engines: make(map[int32]*checkpoints.EngineCheckpoint),
}
rc := &Controller{cfg: s.cfg, ioWorkers: worker.NewPool(context.Background(), 1, "io"), store: s.store}
err := s.tr.populateChunks(context.Background(), rc, cp)
require.NoError(s.T(), err)
//nolint:dupl // false positive.
require.Equal(s.T(), map[int32]*checkpoints.EngineCheckpoint{
-1: {
Status: checkpoints.CheckpointStatusLoaded,
},
0: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[0].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[0].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 0,
RowIDMax: 7, // 37 bytes with 3 columns can store at most 7 rows.
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[1].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[1].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 7,
RowIDMax: 14,
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[2].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[2].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 14,
RowIDMax: 21,
},
Timestamp: 1234567897,
},
},
},
1: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[3].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[3].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 21,
RowIDMax: 28,
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[4].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[4].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 28,
RowIDMax: 35,
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[5].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[5].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 37,
PrevRowIDMax: 35,
RowIDMax: 42,
},
Timestamp: 1234567897,
},
},
},
2: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: s.tr.tableMeta.DataFiles[6].FileMeta.Path, Offset: 0},
FileMeta: s.tr.tableMeta.DataFiles[6].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 14,
PrevRowIDMax: 42,
RowIDMax: 46,
},
Timestamp: 1234567897,
},
},
},
}, cp.Engines)
// set csv header to true, this will cause check columns fail
s.cfg.Mydumper.CSV.Header = true
s.cfg.Mydumper.StrictFormat = true
regionSize := s.cfg.Mydumper.MaxRegionSize
s.cfg.Mydumper.MaxRegionSize = 5
err = s.tr.populateChunks(context.Background(), rc, cp)
require.Error(s.T(), err)
require.Regexp(s.T(), `.*unknown columns in header \(1,2,3\)`, err.Error())
s.cfg.Mydumper.MaxRegionSize = regionSize
s.cfg.Mydumper.CSV.Header = false
}
type errorLocalWriter struct{}
func (w errorLocalWriter) AppendRows(context.Context, string, []string, kv.Rows) error {
return errors.New("mock write rows failed")
}
func (w errorLocalWriter) IsSynced() bool {
return true
}
func (w errorLocalWriter) Close(context.Context) (backend.ChunkFlushStatus, error) {
return nil, nil
}
func (s *tableRestoreSuite) TestRestoreEngineFailed() {
ctx := context.Background()
ctrl := gomock.NewController(s.T())
mockBackend := mock.NewMockBackend(ctrl)
rc := &Controller{
cfg: s.cfg,
pauser: DeliverPauser,
ioWorkers: worker.NewPool(ctx, 1, "io"),
regionWorkers: worker.NewPool(ctx, 10, "region"),
store: s.store,
backend: backend.MakeBackend(mockBackend),
errorSummaries: makeErrorSummaries(log.L()),
saveCpCh: make(chan saveCp, 1),
}
defer close(rc.saveCpCh)
go func() {
for cp := range rc.saveCpCh {
cp.waitCh <- nil
}
}()
cp := &checkpoints.TableCheckpoint{
Engines: make(map[int32]*checkpoints.EngineCheckpoint),
}
err := s.tr.populateChunks(ctx, rc, cp)
require.NoError(s.T(), err)
tbl, err := tables.TableFromMeta(kv.NewPanickingAllocators(0), s.tableInfo.Core)
require.NoError(s.T(), err)
_, indexUUID := backend.MakeUUID("`db`.`table`", -1)
_, dataUUID := backend.MakeUUID("`db`.`table`", 0)
realBackend := tidb.NewTiDBBackend(nil, "replace", nil)
mockBackend.EXPECT().OpenEngine(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
mockBackend.EXPECT().OpenEngine(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
mockBackend.EXPECT().CloseEngine(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil).AnyTimes()
mockBackend.EXPECT().NewEncoder(gomock.Any(), gomock.Any()).
Return(realBackend.NewEncoder(tbl, &kv.SessionOptions{})).
AnyTimes()
mockBackend.EXPECT().MakeEmptyRows().Return(realBackend.MakeEmptyRows()).AnyTimes()
mockBackend.EXPECT().LocalWriter(gomock.Any(), gomock.Any(), dataUUID).Return(noop.Writer{}, nil)
mockBackend.EXPECT().LocalWriter(gomock.Any(), gomock.Any(), indexUUID).
Return(nil, errors.New("mock open index local writer failed"))
openedIdxEngine, err := rc.backend.OpenEngine(ctx, nil, "`db`.`table`", -1)
require.NoError(s.T(), err)
// open the first engine meet error, should directly return the error
_, err = s.tr.restoreEngine(ctx, rc, openedIdxEngine, 0, cp.Engines[0])
require.Equal(s.T(), "mock open index local writer failed", err.Error())
localWriter := func(ctx context.Context, cfg *backend.LocalWriterConfig, engineUUID uuid.UUID) (backend.EngineWriter, error) {
time.Sleep(20 * time.Millisecond)
select {
case <-ctx.Done():
return nil, errors.New("mock open index local writer failed after ctx.Done")
default:
return noop.Writer{}, nil
}
}
mockBackend.EXPECT().OpenEngine(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
mockBackend.EXPECT().OpenEngine(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
mockBackend.EXPECT().LocalWriter(gomock.Any(), gomock.Any(), dataUUID).Return(errorLocalWriter{}, nil).AnyTimes()
mockBackend.EXPECT().LocalWriter(gomock.Any(), gomock.Any(), indexUUID).
DoAndReturn(localWriter).AnyTimes()
openedIdxEngine, err = rc.backend.OpenEngine(ctx, nil, "`db`.`table`", -1)
require.NoError(s.T(), err)
// open engine failed after write rows failed, should return write rows error
_, err = s.tr.restoreEngine(ctx, rc, openedIdxEngine, 0, cp.Engines[0])
require.Equal(s.T(), "mock write rows failed", err.Error())
}
func (s *tableRestoreSuite) TestPopulateChunksCSVHeader() {
fakeDataDir := s.T().TempDir()
store, err := storage.NewLocalStorage(fakeDataDir)
require.NoError(s.T(), err)
fakeDataFiles := make([]mydump.FileInfo, 0)
fakeCsvContents := []string{
// small full header
"a,b,c\r\n1,2,3\r\n",
// small partial header
"b,c\r\n2,3\r\n",
// big full header
"a,b,c\r\n90000,80000,700000\r\n1000,2000,3000\r\n11,22,33\r\n3,4,5\r\n",
// big full header unordered
"c,a,b\r\n,1000,2000,3000\r\n11,22,33\r\n1000,2000,404\r\n3,4,5\r\n90000,80000,700000\r\n7999999,89999999,9999999\r\n",
// big partial header
"b,c\r\n2000001,30000001\r\n35231616,462424626\r\n62432,434898934\r\n",
}
total := 0
for i, str := range fakeCsvContents {
csvName := fmt.Sprintf("db.table.%02d.csv", i)
err := os.WriteFile(filepath.Join(fakeDataDir, csvName), []byte(str), 0o644)
require.NoError(s.T(), err)
fakeDataFiles = append(fakeDataFiles, mydump.FileInfo{
TableName: filter.Table{Schema: "db", Name: "table"},
FileMeta: mydump.SourceFileMeta{Path: csvName, Type: mydump.SourceTypeCSV, SortKey: fmt.Sprintf("%02d", i), FileSize: int64(len(str))},
})
total += len(str)
}
tableMeta := &mydump.MDTableMeta{
DB: "db",
Name: "table",
TotalSize: int64(total),
SchemaFile: mydump.FileInfo{TableName: filter.Table{Schema: "db", Name: "table"}, FileMeta: mydump.SourceFileMeta{Path: "db.table-schema.sql", Type: mydump.SourceTypeTableSchema}},
DataFiles: fakeDataFiles,
}
_ = failpoint.Enable("github.com/pingcap/tidb/br/pkg/lightning/restore/PopulateChunkTimestamp", "return(1234567897)")
defer func() {
_ = failpoint.Disable("github.com/pingcap/tidb/br/pkg/lightning/restore/PopulateChunkTimestamp")
}()
cp := &checkpoints.TableCheckpoint{
Engines: make(map[int32]*checkpoints.EngineCheckpoint),
}
cfg := config.NewConfig()
cfg.Mydumper.BatchSize = 100
cfg.Mydumper.MaxRegionSize = 40
cfg.Mydumper.CSV.Header = true
cfg.Mydumper.StrictFormat = true
rc := &Controller{cfg: cfg, ioWorkers: worker.NewPool(context.Background(), 1, "io"), store: store}
tr, err := NewTableRestore("`db`.`table`", tableMeta, s.dbInfo, s.tableInfo, &checkpoints.TableCheckpoint{}, nil)
require.NoError(s.T(), err)
require.NoError(s.T(), tr.populateChunks(context.Background(), rc, cp))
require.Equal(s.T(), map[int32]*checkpoints.EngineCheckpoint{
-1: {
Status: checkpoints.CheckpointStatusLoaded,
},
0: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[0].FileMeta.Path, Offset: 0},
FileMeta: tableMeta.DataFiles[0].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 14,
PrevRowIDMax: 0,
RowIDMax: 4, // 37 bytes with 3 columns can store at most 7 rows.
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[1].FileMeta.Path, Offset: 0},
FileMeta: tableMeta.DataFiles[1].FileMeta,
Chunk: mydump.Chunk{
Offset: 0,
EndOffset: 10,
PrevRowIDMax: 4,
RowIDMax: 7,
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[2].FileMeta.Path, Offset: 6},
FileMeta: tableMeta.DataFiles[2].FileMeta,
ColumnPermutation: []int{0, 1, 2, -1},
Chunk: mydump.Chunk{
Offset: 6,
EndOffset: 52,
PrevRowIDMax: 7,
RowIDMax: 20,
Columns: []string{"a", "b", "c"},
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[2].FileMeta.Path, Offset: 52},
FileMeta: tableMeta.DataFiles[2].FileMeta,
ColumnPermutation: []int{0, 1, 2, -1},
Chunk: mydump.Chunk{
Offset: 52,
EndOffset: 60,
PrevRowIDMax: 20,
RowIDMax: 22,
Columns: []string{"a", "b", "c"},
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[3].FileMeta.Path, Offset: 6},
FileMeta: tableMeta.DataFiles[3].FileMeta,
ColumnPermutation: []int{1, 2, 0, -1},
Chunk: mydump.Chunk{
Offset: 6,
EndOffset: 48,
PrevRowIDMax: 22,
RowIDMax: 35,
Columns: []string{"c", "a", "b"},
},
Timestamp: 1234567897,
},
},
},
1: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[3].FileMeta.Path, Offset: 48},
FileMeta: tableMeta.DataFiles[3].FileMeta,
ColumnPermutation: []int{1, 2, 0, -1},
Chunk: mydump.Chunk{
Offset: 48,
EndOffset: 101,
PrevRowIDMax: 35,
RowIDMax: 48,
Columns: []string{"c", "a", "b"},
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[3].FileMeta.Path, Offset: 101},
FileMeta: tableMeta.DataFiles[3].FileMeta,
ColumnPermutation: []int{1, 2, 0, -1},
Chunk: mydump.Chunk{
Offset: 101,
EndOffset: 102,
PrevRowIDMax: 48,
RowIDMax: 48,
Columns: []string{"c", "a", "b"},
},
Timestamp: 1234567897,
},
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[4].FileMeta.Path, Offset: 4},
FileMeta: tableMeta.DataFiles[4].FileMeta,
ColumnPermutation: []int{-1, 0, 1, -1},
Chunk: mydump.Chunk{
Offset: 4,
EndOffset: 59,
PrevRowIDMax: 48,
RowIDMax: 61,
Columns: []string{"b", "c"},
},
Timestamp: 1234567897,
},
},
},
2: {
Status: checkpoints.CheckpointStatusLoaded,
Chunks: []*checkpoints.ChunkCheckpoint{
{
Key: checkpoints.ChunkCheckpointKey{Path: tableMeta.DataFiles[4].FileMeta.Path, Offset: 59},
FileMeta: tableMeta.DataFiles[4].FileMeta,
ColumnPermutation: []int{-1, 0, 1, -1},
Chunk: mydump.Chunk{
Offset: 59,
EndOffset: 60,
PrevRowIDMax: 61,
RowIDMax: 61,
Columns: []string{"b", "c"},
},
Timestamp: 1234567897,
},
},
},
}, cp.Engines)
}
func (s *tableRestoreSuite) TestGetColumnsNames() {
require.Equal(s.T(), []string{"a", "b", "c"}, getColumnNames(s.tableInfo.Core, []int{0, 1, 2, -1}))
require.Equal(s.T(), []string{"b", "a", "c"}, getColumnNames(s.tableInfo.Core, []int{1, 0, 2, -1}))
require.Equal(s.T(), []string{"b", "c"}, getColumnNames(s.tableInfo.Core, []int{-1, 0, 1, -1}))
require.Equal(s.T(), []string{"a", "b"}, getColumnNames(s.tableInfo.Core, []int{0, 1, -1, -1}))
require.Equal(s.T(), []string{"c", "a"}, getColumnNames(s.tableInfo.Core, []int{1, -1, 0, -1}))
require.Equal(s.T(), []string{"b"}, getColumnNames(s.tableInfo.Core, []int{-1, 0, -1, -1}))
require.Equal(s.T(), []string{"_tidb_rowid", "a", "b", "c"}, getColumnNames(s.tableInfo.Core, []int{1, 2, 3, 0}))
require.Equal(s.T(), []string{"b", "a", "c", "_tidb_rowid"}, getColumnNames(s.tableInfo.Core, []int{1, 0, 2, 3}))
require.Equal(s.T(), []string{"b", "_tidb_rowid", "c"}, getColumnNames(s.tableInfo.Core, []int{-1, 0, 2, 1}))
require.Equal(s.T(), []string{"c", "_tidb_rowid", "a"}, getColumnNames(s.tableInfo.Core, []int{2, -1, 0, 1}))
require.Equal(s.T(), []string{"_tidb_rowid", "b"}, getColumnNames(s.tableInfo.Core, []int{-1, 1, -1, 0}))
}
func (s *tableRestoreSuite) TestInitializeColumns() {
ccp := &checkpoints.ChunkCheckpoint{}
defer func() {
s.tr.ignoreColumns = nil
}()
cases := []struct {
columns []string
ignoreColumns map[string]struct{}
expectedPermutation []int
errPat string
}{
{
nil,
nil,
[]int{0, 1, 2, -1},
"",
},
{
nil,
map[string]struct{}{"b": {}},
[]int{0, -1, 2, -1},
"",
},
{
[]string{"b", "c", "a"},
nil,
[]int{2, 0, 1, -1},
"",
},
{
[]string{"b", "c", "a"},
map[string]struct{}{"b": {}},
[]int{2, -1, 1, -1},
"",
},
{
[]string{"b"},
nil,
[]int{-1, 0, -1, -1},
"",
},
{
[]string{"_tidb_rowid", "b", "a", "c"},
nil,
[]int{2, 1, 3, 0},
"",
},
{
[]string{"_tidb_rowid", "b", "a", "c"},
map[string]struct{}{"b": {}, "_tidb_rowid": {}},
[]int{2, -1, 3, -1},
"",
},
{
[]string{"_tidb_rowid", "b", "a", "c", "d"},
nil,
nil,
`\[Lightning:Restore:ErrUnknownColumns\]unknown columns in header \(d\) for table table`,
},
{
[]string{"e", "b", "c", "d"},
nil,
nil,
`\[Lightning:Restore:ErrUnknownColumns\]unknown columns in header \(e,d\) for table table`,
},
}
for _, testCase := range cases {
ccp.ColumnPermutation = nil
s.tr.ignoreColumns = testCase.ignoreColumns
err := s.tr.initializeColumns(testCase.columns, ccp)
if len(testCase.errPat) > 0 {
require.Error(s.T(), err)
require.Regexp(s.T(), testCase.errPat, err.Error())
} else {
require.Equal(s.T(), testCase.expectedPermutation, ccp.ColumnPermutation)
}
}
}
func (s *tableRestoreSuite) TestInitializeColumnsGenerated() {
p := parser.New()
p.SetSQLMode(mysql.ModeANSIQuotes)
se := tmock.NewContext()
cases := []struct {
schema string
columns []string
expectedPermutation []int
}{
{
"CREATE TABLE `table` (a INT, b INT, C INT, d INT AS (a * 2))",
[]string{"b", "c", "a"},
[]int{2, 0, 1, -1, -1},
},
// all generated columns and none input columns
{
"CREATE TABLE `table` (a bigint as (1 + 2) stored, b text as (sha1(repeat('x', a))) stored)",
[]string{},
[]int{-1, -1, -1},
},
}
for _, testCase := range cases {
node, err := p.ParseOneStmt(testCase.schema, "", "")
require.NoError(s.T(), err)
core, err := ddl.MockTableInfo(se, node.(*ast.CreateTableStmt), 0xabcdef)
require.NoError(s.T(), err)
core.State = model.StatePublic
tableInfo := &checkpoints.TidbTableInfo{Name: "table", DB: "db", Core: core}
s.tr, err = NewTableRestore("`db`.`table`", s.tableMeta, s.dbInfo, tableInfo, &checkpoints.TableCheckpoint{}, nil)
require.NoError(s.T(), err)
ccp := &checkpoints.ChunkCheckpoint{}
err = s.tr.initializeColumns(testCase.columns, ccp)
require.NoError(s.T(), err)
require.Equal(s.T(), testCase.expectedPermutation, ccp.ColumnPermutation)
}
}
func (s *tableRestoreSuite) TestCompareChecksumSuccess() {
db, mock, err := sqlmock.New()
require.NoError(s.T(), err)
defer func() {
require.NoError(s.T(), db.Close())
require.NoError(s.T(), mock.ExpectationsWereMet())
}()
mock.ExpectQuery("SELECT.*tikv_gc_life_time.*").
WillReturnRows(sqlmock.NewRows([]string{"VARIABLE_VALUE"}).AddRow("10m"))
mock.ExpectExec("UPDATE.*tikv_gc_life_time.*").
WithArgs("100h0m0s").
WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectQuery("ADMIN CHECKSUM.*").
WillReturnRows(
sqlmock.NewRows([]string{"Db_name", "Table_name", "Checksum_crc64_xor", "Total_kvs", "Total_bytes"}).
AddRow("db", "table", 1234567890, 12345, 1234567),
)
mock.ExpectExec("UPDATE.*tikv_gc_life_time.*").
WithArgs("10m").
WillReturnResult(sqlmock.NewResult(2, 1))
mock.ExpectClose()
ctx := MockDoChecksumCtx(db)
remoteChecksum, err := DoChecksum(ctx, s.tr.tableInfo)
require.NoError(s.T(), err)
err = s.tr.compareChecksum(remoteChecksum, verification.MakeKVChecksum(1234567, 12345, 1234567890))
require.NoError(s.T(), err)
}
func (s *tableRestoreSuite) TestCompareChecksumFailure() {
db, mock, err := sqlmock.New()
require.NoError(s.T(), err)
defer func() {
require.NoError(s.T(), db.Close())
require.NoError(s.T(), mock.ExpectationsWereMet())
}()
mock.ExpectQuery("SELECT.*tikv_gc_life_time.*").
WillReturnRows(sqlmock.NewRows([]string{"VARIABLE_VALUE"}).AddRow("10m"))
mock.ExpectExec("UPDATE.*tikv_gc_life_time.*").
WithArgs("100h0m0s").
WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectQuery("ADMIN CHECKSUM TABLE `db`\\.`table`").
WillReturnRows(
sqlmock.NewRows([]string{"Db_name", "Table_name", "Checksum_crc64_xor", "Total_kvs", "Total_bytes"}).
AddRow("db", "table", 1234567890, 12345, 1234567),
)
mock.ExpectExec("UPDATE.*tikv_gc_life_time.*").
WithArgs("10m").
WillReturnResult(sqlmock.NewResult(2, 1))
mock.ExpectClose()
ctx := MockDoChecksumCtx(db)
remoteChecksum, err := DoChecksum(ctx, s.tr.tableInfo)
require.NoError(s.T(), err)
err = s.tr.compareChecksum(remoteChecksum, verification.MakeKVChecksum(9876543, 54321, 1357924680))
require.Regexp(s.T(), "checksum mismatched.*", err.Error())
}
func (s *tableRestoreSuite) TestAnalyzeTable() {
db, mock, err := sqlmock.New()
require.NoError(s.T(), err)
defer func() {
require.NoError(s.T(), db.Close())
require.NoError(s.T(), mock.ExpectationsWereMet())
}()
mock.ExpectExec("ANALYZE TABLE `db`\\.`table`").
WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectClose()
ctx := context.Background()
defaultSQLMode, err := mysql.GetSQLMode(mysql.DefaultSQLMode)
require.NoError(s.T(), err)
g := glue.NewExternalTiDBGlue(db, defaultSQLMode)
err = s.tr.analyzeTable(ctx, g)
require.NoError(s.T(), err)
}
func (s *tableRestoreSuite) TestImportKVSuccess() {
controller := gomock.NewController(s.T())
defer controller.Finish()
mockBackend := mock.NewMockBackend(controller)
importer := backend.MakeBackend(mockBackend)
chptCh := make(chan saveCp)
defer close(chptCh)
rc := &Controller{saveCpCh: chptCh, cfg: config.NewConfig()}
go func() {
for scp := range chptCh {
if scp.waitCh != nil {
scp.waitCh <- nil
}
}
}()
ctx := context.Background()
engineUUID := uuid.New()
mockBackend.EXPECT().
CloseEngine(ctx, nil, engineUUID).
Return(nil)
mockBackend.EXPECT().
ImportEngine(ctx, engineUUID, gomock.Any(), gomock.Any()).
Return(nil)
mockBackend.EXPECT().
CleanupEngine(ctx, engineUUID).
Return(nil)
closedEngine, err := importer.UnsafeCloseEngineWithUUID(ctx, nil, "tag", engineUUID)
require.NoError(s.T(), err)
err = s.tr.importKV(ctx, closedEngine, rc, 1)
require.NoError(s.T(), err)
}
func (s *tableRestoreSuite) TestImportKVFailure() {
controller := gomock.NewController(s.T())
defer controller.Finish()
mockBackend := mock.NewMockBackend(controller)
importer := backend.MakeBackend(mockBackend)
chptCh := make(chan saveCp)
defer close(chptCh)
rc := &Controller{saveCpCh: chptCh, cfg: config.NewConfig()}
go func() {
for scp := range chptCh {
if scp.waitCh != nil {
scp.waitCh <- nil
}
}
}()
ctx := context.Background()
engineUUID := uuid.New()
mockBackend.EXPECT().
CloseEngine(ctx, nil, engineUUID).
Return(nil)
mockBackend.EXPECT().
ImportEngine(ctx, engineUUID, gomock.Any(), gomock.Any()).
Return(errors.Annotate(context.Canceled, "fake import error"))
closedEngine, err := importer.UnsafeCloseEngineWithUUID(ctx, nil, "tag", engineUUID)
require.NoError(s.T(), err)
err = s.tr.importKV(ctx, closedEngine, rc, 1)
require.Regexp(s.T(), "fake import error.*", err.Error())
}
func (s *tableRestoreSuite) TestTableRestoreMetrics() {
controller := gomock.NewController(s.T())
defer controller.Finish()
chunkPendingBase := metric.ReadCounter(metric.ChunkCounter.WithLabelValues(metric.ChunkStatePending))
chunkFinishedBase := metric.ReadCounter(metric.ChunkCounter.WithLabelValues(metric.ChunkStatePending))
engineFinishedBase := metric.ReadCounter(metric.ProcessedEngineCounter.WithLabelValues("imported", metric.TableResultSuccess))
tableFinishedBase := metric.ReadCounter(metric.TableCounter.WithLabelValues("index_imported", metric.TableResultSuccess))
ctx := context.Background()
chptCh := make(chan saveCp)
defer close(chptCh)
cfg := config.NewConfig()
cfg.Mydumper.BatchSize = 1
cfg.PostRestore.Checksum = config.OpLevelOff
cfg.Checkpoint.Enable = false
cfg.TiDB.Host = "127.0.0.1"
cfg.TiDB.StatusPort = 10080
cfg.TiDB.Port = 4000
cfg.TiDB.PdAddr = "127.0.0.1:2379"
cfg.Mydumper.SourceDir = "."
cfg.Mydumper.CSV.Header = false
cfg.TikvImporter.Backend = config.BackendLocal
cfg.TikvImporter.SortedKVDir = "/tmp/sorted"
tls, err := cfg.ToTLS()
require.NoError(s.T(), err)
err = cfg.Adjust(ctx)
require.NoError(s.T(), err)
cpDB := checkpoints.NewNullCheckpointsDB()
g := mock.NewMockGlue(controller)
rc := &Controller{
cfg: cfg,
dbMetas: []*mydump.MDDatabaseMeta{
{
Name: s.tableInfo.DB,
Tables: []*mydump.MDTableMeta{s.tableMeta},
},
},
dbInfos: map[string]*checkpoints.TidbDBInfo{
s.tableInfo.DB: s.dbInfo,
},
tableWorkers: worker.NewPool(ctx, 6, "table"),
ioWorkers: worker.NewPool(ctx, 5, "io"),
indexWorkers: worker.NewPool(ctx, 2, "index"),
regionWorkers: worker.NewPool(ctx, 10, "region"),
checksumWorks: worker.NewPool(ctx, 2, "region"),
saveCpCh: chptCh,
pauser: DeliverPauser,
backend: noop.NewNoopBackend(),
tidbGlue: g,
errorSummaries: makeErrorSummaries(log.L()),
tls: tls,
checkpointsDB: cpDB,
closedEngineLimit: worker.NewPool(ctx, 1, "closed_engine"),
store: s.store,
metaMgrBuilder: noopMetaMgrBuilder{},
errorMgr: errormanager.New(nil, cfg),
taskMgr: noopTaskMetaMgr{},
}
go func() {
for scp := range chptCh {
if scp.waitCh != nil {
scp.waitCh <- nil
}
}
}()
db, sqlMock, err := sqlmock.New()
require.NoError(s.T(), err)
g.EXPECT().GetDB().Return(db, nil).AnyTimes()
sqlMock.ExpectQuery("SELECT tidb_version\\(\\);").WillReturnRows(sqlmock.NewRows([]string{"tidb_version()"}).
AddRow("Release Version: v5.2.1\nEdition: Community\n"))
web.BroadcastInitProgress(rc.dbMetas)
err = rc.restoreTables(ctx)
require.NoError(s.T(), err)
chunkPending := metric.ReadCounter(metric.ChunkCounter.WithLabelValues(metric.ChunkStatePending))
chunkFinished := metric.ReadCounter(metric.ChunkCounter.WithLabelValues(metric.ChunkStatePending))
require.Equal(s.T(), float64(7), chunkPending-chunkPendingBase)
require.Equal(s.T(), chunkPending-chunkPendingBase, chunkFinished-chunkFinishedBase)
engineFinished := metric.ReadCounter(metric.ProcessedEngineCounter.WithLabelValues("imported", metric.TableResultSuccess))
require.Equal(s.T(), float64(8), engineFinished-engineFinishedBase)
tableFinished := metric.ReadCounter(metric.TableCounter.WithLabelValues("index_imported", metric.TableResultSuccess))
require.Equal(s.T(), float64(1), tableFinished-tableFinishedBase)
}
func (s *tableRestoreSuite) TestSaveStatusCheckpoint() {
_ = failpoint.Enable("github.com/pingcap/tidb/br/pkg/lightning/restore/SlowDownCheckpointUpdate", "sleep(100)")
defer func() {
_ = failpoint.Disable("github.com/pingcap/tidb/br/pkg/lightning/restore/SlowDownCheckpointUpdate")
}()
web.BroadcastInitProgress([]*mydump.MDDatabaseMeta{{
Name: "test",
Tables: []*mydump.MDTableMeta{{DB: "test", Name: "tbl"}},
}})
web.BroadcastTableCheckpoint(common.UniqueTable("test", "tbl"), &checkpoints.TableCheckpoint{})
saveCpCh := make(chan saveCp)
rc := &Controller{
saveCpCh: saveCpCh,
checkpointsDB: checkpoints.NewNullCheckpointsDB(),
}
rc.checkpointsWg.Add(1)
go rc.listenCheckpointUpdates()
rc.errorSummaries = makeErrorSummaries(log.L())
err := rc.saveStatusCheckpoint(context.Background(), common.UniqueTable("test", "tbl"), indexEngineID, errors.New("connection refused"), checkpoints.CheckpointStatusImported)
require.NoError(s.T(), err)
require.Equal(s.T(), 0, len(rc.errorSummaries.summary))
err = rc.saveStatusCheckpoint(
context.Background(),
common.UniqueTable("test", "tbl"), indexEngineID,