mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-05 03:29:03 +08:00
414 lines
12 KiB
Go
414 lines
12 KiB
Go
//go:build ydb
|
|
// +build ydb
|
|
|
|
package ydb
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"github.com/chrislusf/seaweedfs/weed/filer"
|
|
"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
environ "github.com/ydb-platform/ydb-go-sdk-auth-environ"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3/sugar"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3/table"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3/table/result"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3/table/result/named"
|
|
"github.com/ydb-platform/ydb-go-sdk/v3/table/types"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
defaultDialTimeOut = 10
|
|
)
|
|
|
|
var (
|
|
roTX = table.TxControl(
|
|
table.BeginTx(table.WithOnlineReadOnly()),
|
|
table.CommitTx(),
|
|
)
|
|
rwTX = table.DefaultTxControl()
|
|
)
|
|
|
|
type YdbStore struct {
|
|
DB ydb.Connection
|
|
dirBuckets string
|
|
tablePathPrefix string
|
|
SupportBucketTable bool
|
|
dbs map[string]bool
|
|
dbsLock sync.Mutex
|
|
}
|
|
|
|
func init() {
|
|
filer.Stores = append(filer.Stores, &YdbStore{})
|
|
}
|
|
|
|
func (store *YdbStore) GetName() string {
|
|
return "ydb"
|
|
}
|
|
|
|
func (store *YdbStore) Initialize(configuration util.Configuration, prefix string) (err error) {
|
|
return store.initialize(
|
|
configuration.GetString("filer.options.buckets_folder"),
|
|
configuration.GetString(prefix+"dsn"),
|
|
configuration.GetString(prefix+"prefix"),
|
|
configuration.GetBool(prefix+"useBucketPrefix"),
|
|
configuration.GetInt(prefix+"dialTimeOut"),
|
|
configuration.GetInt(prefix+"poolSizeLimit"),
|
|
)
|
|
}
|
|
|
|
func (store *YdbStore) initialize(dirBuckets string, dsn string, tablePathPrefix string, useBucketPrefix bool, dialTimeOut int, poolSizeLimit int) (err error) {
|
|
store.dirBuckets = dirBuckets
|
|
store.SupportBucketTable = useBucketPrefix
|
|
if store.SupportBucketTable {
|
|
glog.V(0).Infof("enabled BucketPrefix")
|
|
}
|
|
store.dbs = make(map[string]bool)
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
if dialTimeOut == 0 {
|
|
dialTimeOut = defaultDialTimeOut
|
|
}
|
|
opts := []ydb.Option{
|
|
ydb.WithDialTimeout(time.Duration(dialTimeOut) * time.Second),
|
|
environ.WithEnvironCredentials(ctx),
|
|
}
|
|
if poolSizeLimit > 0 {
|
|
opts = append(opts, ydb.WithSessionPoolSizeLimit(poolSizeLimit))
|
|
}
|
|
if dsn == "" {
|
|
dsn = os.Getenv("YDB_CONNECTION_STRING")
|
|
}
|
|
store.DB, err = ydb.Open(ctx, dsn, opts...)
|
|
if err != nil {
|
|
if store.DB != nil {
|
|
_ = store.DB.Close(ctx)
|
|
store.DB = nil
|
|
}
|
|
return fmt.Errorf("can not connect to %s error: %v", dsn, err)
|
|
}
|
|
|
|
store.tablePathPrefix = path.Join(store.DB.Name(), tablePathPrefix)
|
|
if err = sugar.MakeRecursive(ctx, store.DB, store.tablePathPrefix); err != nil {
|
|
return fmt.Errorf("MakeRecursive %s : %v", store.tablePathPrefix, err)
|
|
}
|
|
|
|
if err = store.createTable(ctx, store.tablePathPrefix); err != nil {
|
|
glog.Errorf("createTable %s: %v", store.tablePathPrefix, err)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (store *YdbStore) doTxOrDB(ctx context.Context, query *string, params *table.QueryParameters, tc *table.TransactionControl, processResultFunc func(res result.Result) error) (err error) {
|
|
var res result.Result
|
|
if tx, ok := ctx.Value("tx").(table.Transaction); ok {
|
|
res, err = tx.Execute(ctx, *query, params)
|
|
if err != nil {
|
|
return fmt.Errorf("execute transaction: %v", err)
|
|
}
|
|
} else {
|
|
err = store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) (err error) {
|
|
_, res, err = s.Execute(ctx, tc, *query, params)
|
|
if err != nil {
|
|
return fmt.Errorf("execute statement: %v", err)
|
|
}
|
|
return nil
|
|
})
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if res != nil {
|
|
defer func() { _ = res.Close() }()
|
|
if processResultFunc != nil {
|
|
if err = processResultFunc(res); err != nil {
|
|
return fmt.Errorf("process result: %v", err)
|
|
}
|
|
}
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (store *YdbStore) insertOrUpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
|
|
dir, name := entry.FullPath.DirAndName()
|
|
meta, err := entry.EncodeAttributesAndChunks()
|
|
if err != nil {
|
|
return fmt.Errorf("encode %s: %s", entry.FullPath, err)
|
|
}
|
|
|
|
if len(entry.Chunks) > filer.CountEntryChunksForGzip {
|
|
meta = util.MaybeGzipData(meta)
|
|
}
|
|
tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
|
|
fileMeta := FileMeta{util.HashStringToLong(dir), name, *shortDir, meta}
|
|
return store.doTxOrDB(ctx, withPragma(tablePathPrefix, upsertQuery), fileMeta.queryParameters(entry.TtlSec), rwTX, nil)
|
|
}
|
|
|
|
func (store *YdbStore) InsertEntry(ctx context.Context, entry *filer.Entry) (err error) {
|
|
return store.insertOrUpdateEntry(ctx, entry)
|
|
}
|
|
|
|
func (store *YdbStore) UpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
|
|
return store.insertOrUpdateEntry(ctx, entry)
|
|
}
|
|
|
|
func (store *YdbStore) FindEntry(ctx context.Context, fullpath util.FullPath) (entry *filer.Entry, err error) {
|
|
dir, name := fullpath.DirAndName()
|
|
var data []byte
|
|
entryFound := false
|
|
tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
|
|
query := withPragma(tablePathPrefix, findQuery)
|
|
queryParams := table.NewQueryParameters(
|
|
table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
|
|
table.ValueParam("$name", types.UTF8Value(name)))
|
|
|
|
err = store.doTxOrDB(ctx, query, queryParams, roTX, func(res result.Result) error {
|
|
if !res.NextResultSet(ctx) || !res.HasNextRow() {
|
|
return nil
|
|
}
|
|
for res.NextRow() {
|
|
if err = res.ScanNamed(named.OptionalWithDefault("meta", &data)); err != nil {
|
|
return fmt.Errorf("scanNamed %s : %v", fullpath, err)
|
|
}
|
|
entryFound = true
|
|
return nil
|
|
}
|
|
return res.Err()
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !entryFound {
|
|
return nil, filer_pb.ErrNotFound
|
|
}
|
|
|
|
entry = &filer.Entry{
|
|
FullPath: fullpath,
|
|
}
|
|
if err := entry.DecodeAttributesAndChunks(util.MaybeDecompressData(data)); err != nil {
|
|
return nil, fmt.Errorf("decode %s : %v", fullpath, err)
|
|
}
|
|
|
|
return entry, nil
|
|
}
|
|
|
|
func (store *YdbStore) DeleteEntry(ctx context.Context, fullpath util.FullPath) (err error) {
|
|
dir, name := fullpath.DirAndName()
|
|
tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
|
|
query := withPragma(tablePathPrefix, deleteQuery)
|
|
queryParams := table.NewQueryParameters(
|
|
table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
|
|
table.ValueParam("$name", types.UTF8Value(name)))
|
|
|
|
return store.doTxOrDB(ctx, query, queryParams, rwTX, nil)
|
|
}
|
|
|
|
func (store *YdbStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) (err error) {
|
|
dir, _ := fullpath.DirAndName()
|
|
tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
|
|
query := withPragma(tablePathPrefix, deleteFolderChildrenQuery)
|
|
queryParams := table.NewQueryParameters(
|
|
table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
|
|
table.ValueParam("$directory", types.UTF8Value(*shortDir)))
|
|
|
|
return store.doTxOrDB(ctx, query, queryParams, rwTX, nil)
|
|
}
|
|
|
|
func (store *YdbStore) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
|
|
return store.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, "", eachEntryFunc)
|
|
}
|
|
|
|
func (store *YdbStore) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
|
|
dir := string(dirPath)
|
|
tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
|
|
var query *string
|
|
if includeStartFile {
|
|
query = withPragma(tablePathPrefix, listInclusiveDirectoryQuery)
|
|
} else {
|
|
query = withPragma(tablePathPrefix, listDirectoryQuery)
|
|
}
|
|
truncated := true
|
|
eachEntryFuncIsNotBreake := true
|
|
entryCount := int64(0)
|
|
for truncated && eachEntryFuncIsNotBreake {
|
|
if lastFileName != "" {
|
|
startFileName = lastFileName
|
|
if includeStartFile {
|
|
query = withPragma(tablePathPrefix, listDirectoryQuery)
|
|
}
|
|
}
|
|
restLimit := limit - entryCount
|
|
queryParams := table.NewQueryParameters(
|
|
table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
|
|
table.ValueParam("$directory", types.UTF8Value(*shortDir)),
|
|
table.ValueParam("$start_name", types.UTF8Value(startFileName)),
|
|
table.ValueParam("$prefix", types.UTF8Value(prefix+"%")),
|
|
table.ValueParam("$limit", types.Uint64Value(uint64(restLimit))),
|
|
)
|
|
err = store.doTxOrDB(ctx, query, queryParams, roTX, func(res result.Result) error {
|
|
var name string
|
|
var data []byte
|
|
if !res.NextResultSet(ctx) || !res.HasNextRow() {
|
|
truncated = false
|
|
return nil
|
|
}
|
|
truncated = res.CurrentResultSet().Truncated()
|
|
for res.NextRow() {
|
|
if err := res.ScanNamed(
|
|
named.OptionalWithDefault("name", &name),
|
|
named.OptionalWithDefault("meta", &data)); err != nil {
|
|
return fmt.Errorf("list scanNamed %s : %v", dir, err)
|
|
}
|
|
lastFileName = name
|
|
entry := &filer.Entry{
|
|
FullPath: util.NewFullPath(dir, name),
|
|
}
|
|
if err = entry.DecodeAttributesAndChunks(util.MaybeDecompressData(data)); err != nil {
|
|
return fmt.Errorf("scan decode %s : %v", entry.FullPath, err)
|
|
}
|
|
if !eachEntryFunc(entry) {
|
|
eachEntryFuncIsNotBreake = false
|
|
break
|
|
}
|
|
entryCount += 1
|
|
}
|
|
return res.Err()
|
|
})
|
|
}
|
|
if err != nil {
|
|
return lastFileName, err
|
|
}
|
|
return lastFileName, nil
|
|
}
|
|
|
|
func (store *YdbStore) BeginTransaction(ctx context.Context) (context.Context, error) {
|
|
session, err := store.DB.Table().CreateSession(ctx)
|
|
if err != nil {
|
|
return ctx, err
|
|
}
|
|
tx, err := session.BeginTransaction(ctx, table.TxSettings(table.WithSerializableReadWrite()))
|
|
if err != nil {
|
|
return ctx, err
|
|
}
|
|
return context.WithValue(ctx, "tx", tx), nil
|
|
}
|
|
|
|
func (store *YdbStore) CommitTransaction(ctx context.Context) error {
|
|
if tx, ok := ctx.Value("tx").(table.Transaction); ok {
|
|
_, err := tx.CommitTx(ctx)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (store *YdbStore) RollbackTransaction(ctx context.Context) error {
|
|
if tx, ok := ctx.Value("tx").(table.Transaction); ok {
|
|
return tx.Rollback(ctx)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (store *YdbStore) Shutdown() {
|
|
_ = store.DB.Close(context.Background())
|
|
}
|
|
|
|
func (store *YdbStore) CanDropWholeBucket() bool {
|
|
return store.SupportBucketTable
|
|
}
|
|
|
|
func (store *YdbStore) OnBucketCreation(bucket string) {
|
|
store.dbsLock.Lock()
|
|
defer store.dbsLock.Unlock()
|
|
|
|
if err := store.createTable(context.Background(),
|
|
path.Join(store.tablePathPrefix, bucket)); err != nil {
|
|
glog.Errorf("createTable %s: %v", bucket, err)
|
|
}
|
|
|
|
if store.dbs == nil {
|
|
return
|
|
}
|
|
store.dbs[bucket] = true
|
|
}
|
|
|
|
func (store *YdbStore) OnBucketDeletion(bucket string) {
|
|
store.dbsLock.Lock()
|
|
defer store.dbsLock.Unlock()
|
|
|
|
if err := store.deleteTable(context.Background(),
|
|
path.Join(store.tablePathPrefix, bucket)); err != nil {
|
|
glog.Errorf("deleteTable %s: %v", bucket, err)
|
|
}
|
|
|
|
if store.dbs == nil {
|
|
return
|
|
}
|
|
delete(store.dbs, bucket)
|
|
}
|
|
|
|
func (store *YdbStore) createTable(ctx context.Context, prefix string) error {
|
|
return store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) error {
|
|
return s.CreateTable(ctx, path.Join(prefix, abstract_sql.DEFAULT_TABLE), createTableOptions()...)
|
|
})
|
|
}
|
|
|
|
func (store *YdbStore) deleteTable(ctx context.Context, prefix string) error {
|
|
if !store.SupportBucketTable {
|
|
return nil
|
|
}
|
|
if err := store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) error {
|
|
return s.DropTable(ctx, path.Join(prefix, abstract_sql.DEFAULT_TABLE))
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
glog.V(4).Infof("deleted table %s", prefix)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (store *YdbStore) getPrefix(ctx context.Context, dir *string) (tablePathPrefix *string, shortDir *string) {
|
|
tablePathPrefix = &store.tablePathPrefix
|
|
shortDir = dir
|
|
if !store.SupportBucketTable {
|
|
return
|
|
}
|
|
|
|
prefixBuckets := store.dirBuckets + "/"
|
|
if strings.HasPrefix(*dir, prefixBuckets) {
|
|
// detect bucket
|
|
bucketAndDir := (*dir)[len(prefixBuckets):]
|
|
var bucket string
|
|
if t := strings.Index(bucketAndDir, "/"); t > 0 {
|
|
bucket = bucketAndDir[:t]
|
|
} else if t < 0 {
|
|
bucket = bucketAndDir
|
|
}
|
|
if bucket == "" {
|
|
return
|
|
}
|
|
|
|
store.dbsLock.Lock()
|
|
defer store.dbsLock.Unlock()
|
|
|
|
tablePathPrefixWithBucket := path.Join(store.tablePathPrefix, bucket)
|
|
if _, found := store.dbs[bucket]; !found {
|
|
if err := store.createTable(ctx, tablePathPrefixWithBucket); err == nil {
|
|
store.dbs[bucket] = true
|
|
glog.V(4).Infof("created table %s", tablePathPrefixWithBucket)
|
|
} else {
|
|
glog.Errorf("createTable %s: %v", tablePathPrefixWithBucket, err)
|
|
}
|
|
}
|
|
tablePathPrefix = &tablePathPrefixWithBucket
|
|
}
|
|
return
|
|
}
|