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cmd/storagenode: refactor lazyfilewalker commands to satisfy the execwrapper.Command interface

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Follow-up change for https://review.dev.storj.io/c/storj/storj/+/10335

Updates https://github.com/storj/storj/issues/5349

Change-Id: Iadf55bae84ebc0803a0766830e596c396dfb332b
This commit is contained in:
Clement Sam 2023-05-05 21:26:09 +00:00
parent 56dbe7738d
commit cf7ce81d09
9 changed files with 452 additions and 205 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

190
cmd/storagenode/cmd_lazy_filewalker.go
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@ -1,190 +0,0 @@
// Copyright (C) 2023 Storj Labs, Inc.
// See LICENSE for copying information.
package main
import (
"encoding/json"
"io"
"os"
"runtime"
"github.com/spf13/cobra"
"github.com/zeebo/errs"
"go.uber.org/zap"
"storj.io/common/bloomfilter"
"storj.io/private/process"
"storj.io/storj/storagenode/iopriority"
"storj.io/storj/storagenode/pieces"
"storj.io/storj/storagenode/pieces/lazyfilewalker"
"storj.io/storj/storagenode/storagenodedb"
)
type filewalkerCfg struct {
lazyfilewalker.Config
}
// DatabaseConfig returns the storagenodedb.Config that should be used with this LazyFilewalkerConfig.
func (config *filewalkerCfg) DatabaseConfig() storagenodedb.Config {
return storagenodedb.Config{
Storage: config.Storage,
Info: config.Info,
Info2: config.Info2,
Pieces: config.Pieces,
Filestore: config.Filestore,
Driver: config.Driver,
}
}
func newUsedSpaceFilewalkerCmd() *cobra.Command {
var cfg filewalkerCfg
cmd := &cobra.Command{
Use: lazyfilewalker.UsedSpaceFilewalkerCmdName,
Short: "An internal subcommand used to run used-space calculation filewalker as a separate subprocess with lower IO priority",
RunE: func(cmd *cobra.Command, args []string) error {
return cmdUsedSpaceFilewalker(cmd, &cfg)
},
Hidden: true,
Args: cobra.ExactArgs(0),
}
process.Bind(cmd, &cfg)
return cmd
}
func newGCFilewalkerCmd() *cobra.Command {
var cfg filewalkerCfg
cmd := &cobra.Command{
Use: lazyfilewalker.GCFilewalkerCmdName,
Short: "An internal subcommand used to run garbage collection filewalker as a separate subprocess with lower IO priority",
RunE: func(cmd *cobra.Command, args []string) error {
return cmdGCFilewalker(cmd, &cfg)
},
Hidden: true,
Args: cobra.ExactArgs(0),
}
process.Bind(cmd, &cfg)
return cmd
}
func cmdUsedSpaceFilewalker(cmd *cobra.Command, cfg *filewalkerCfg) (err error) {
if runtime.GOOS == "linux" {
// Pin the current goroutine to the current OS thread, so we can set the IO priority
// for the current thread.
// This is necessary because Go does use CLONE_IO when creating new threads,
// so they do not share a single IO context.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
}
err = iopriority.SetLowIOPriority()
if err != nil {
return err
}
ctx, _ := process.Ctx(cmd)
log := zap.L()
// We still need the DB in this case because we still have to deal with v0 pieces.
// Once we drop support for v0 pieces, we can remove this.
db, err := storagenodedb.OpenExisting(ctx, log.Named("db"), cfg.DatabaseConfig())
if err != nil {
return errs.New("Error starting master database on storage node: %v", err)
}
log.Info("Database started")
defer func() {
err = errs.Combine(err, db.Close())
}()
// Decode the data struct received from the main process
var req lazyfilewalker.UsedSpaceRequest
if err = json.NewDecoder(io.Reader(os.Stdin)).Decode(&req); err != nil {
return errs.New("Error decoding data from stdin: %v", err)
}
if req.SatelliteID.IsZero() {
return errs.New("SatelliteID is required")
}
filewalker := pieces.NewFileWalker(log, db.Pieces(), db.V0PieceInfo())
total, contentSize, err := filewalker.WalkAndComputeSpaceUsedBySatellite(ctx, req.SatelliteID)
if err != nil {
return err
}
resp := lazyfilewalker.UsedSpaceResponse{PiecesTotal: total, PiecesContentSize: contentSize}
// encode the response struct and write it to stdout
return json.NewEncoder(io.Writer(os.Stdout)).Encode(resp)
}
func cmdGCFilewalker(cmd *cobra.Command, cfg *filewalkerCfg) (err error) {
if runtime.GOOS == "linux" {
// Pin the current goroutine to the current OS thread, so we can set the IO priority
// for the current thread.
// This is necessary because Go does use CLONE_IO when creating new threads,
// so they do not share a single IO context.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
}
err = iopriority.SetLowIOPriority()
if err != nil {
return err
}
ctx, _ := process.Ctx(cmd)
log := zap.L()
// We still need the DB in this case because we still have to deal with v0 pieces.
// Once we drop support for v0 pieces, we can remove this.
db, err := storagenodedb.OpenExisting(ctx, log.Named("db"), cfg.DatabaseConfig())
if err != nil {
return errs.New("Error starting master database on storage node: %v", err)
}
log.Info("Database started")
defer func() {
err = errs.Combine(err, db.Close())
}()
// Decode the data struct received from the main process
var req lazyfilewalker.GCFilewalkerRequest
if err = json.NewDecoder(io.Reader(os.Stdin)).Decode(&req); err != nil {
return errs.New("Error decoding data from stdin: %v", err)
}
// Validate the request data
switch {
case req.SatelliteID.IsZero():
return errs.New("SatelliteID is required")
case req.CreatedBefore.IsZero():
return errs.New("CreatedBefore is required")
}
// Decode the bloom filter
filter, err := bloomfilter.NewFromBytes(req.BloomFilter)
if err != nil {
return err
}
filewalker := pieces.NewFileWalker(log, db.Pieces(), db.V0PieceInfo())
pieceIDs, piecesCount, piecesSkippedCount, err := filewalker.WalkSatellitePiecesToTrash(ctx, req.SatelliteID, req.CreatedBefore, filter)
if err != nil {
return err
}
resp := lazyfilewalker.GCFilewalkerResponse{
PieceIDs: pieceIDs,
PiecesCount: piecesCount,
PiecesSkippedCount: piecesSkippedCount,
}
// encode the response struct and write it to stdout
return json.NewEncoder(io.Writer(os.Stdout)).Encode(resp)
}

157
cmd/storagenode/internalcmd/cmd_lazy_filewalker.go Normal file
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@ -0,0 +1,157 @@
// Copyright (C) 2023 Storj Labs, Inc.
// See LICENSE for copying information.
package internalcmd
import (
"context"
"flag"
"fmt"
"io"
"net/url"
"os"
"github.com/spf13/cobra"
"go.uber.org/zap"
"storj.io/private/process"
"storj.io/storj/storagenode/pieces/lazyfilewalker"
"storj.io/storj/storagenode/storagenodedb"
)
// FilewalkerCfg is the config structure for the lazyfilewalker commands.
type FilewalkerCfg struct {
lazyfilewalker.Config
}
// RunOptions defines the options for the lazyfilewalker runners.
type RunOptions struct {
Ctx context.Context
Logger *zap.Logger
Config *FilewalkerCfg
stdin io.Reader
stderr io.Writer
stdout io.Writer
}
type nopWriterSyncCloser struct {
io.Writer
}
func (cw nopWriterSyncCloser) Close() error { return nil }
func (cw nopWriterSyncCloser) Sync() error { return nil }
// SetOut sets the stdout writer.
func (r *RunOptions) SetOut(writer io.Writer) {
r.stdout = writer
}
// SetErr sets the stderr writer.
func (r *RunOptions) SetErr(writer io.Writer) {
r.stderr = writer
writerkey := "zapwriter"
// If the writer is os.Stderr, we don't need to register it because the stderr
// writer is registered by default.
if writer == os.Stderr {
return
}
err := zap.RegisterSink(writerkey, func(u *url.URL) (zap.Sink, error) {
return nopWriterSyncCloser{r.stderr}, nil
})
// this error is expected if the sink is already registered.
duplicateSinkErr := fmt.Errorf("sink factory already registered for scheme %q", writerkey)
if err != nil && err.Error() != duplicateSinkErr.Error() {
r.Logger.Error("failed to register logger sink", zap.Error(err))
return
}
err = flag.Set("log.encoding", "json")
if err != nil {
r.Logger.Error("failed to set log encoding", zap.Error(err))
return
}
// create a new logger with the writer as the output path.
path := fmt.Sprintf("%s:subprocess", writerkey)
logger, err := process.NewLoggerWithOutputPaths("lazyfilewalker", path)
if err != nil {
r.Logger.Error("failed to create logger", zap.Error(err))
return
}
// set the logger to the new logger.
r.Logger = logger
}
// SetIn sets the stdin reader.
func (r *RunOptions) SetIn(reader io.Reader) {
r.stdin = reader
}
// DefaultRunOpts returns the default RunOptions.
func DefaultRunOpts(ctx context.Context, logger *zap.Logger, config *FilewalkerCfg) *RunOptions {
return &RunOptions{
Ctx: ctx,
Logger: logger,
Config: config,
stdin: os.Stdin,
stdout: os.Stdout,
stderr: os.Stderr,
}
}
// DatabaseConfig returns the storagenodedb.Config that should be used with this lazyfilewalker.
func (config *FilewalkerCfg) DatabaseConfig() storagenodedb.Config {
return storagenodedb.Config{
Storage: config.Storage,
Info: config.Info,
Info2: config.Info2,
Pieces: config.Pieces,
Filestore: config.Filestore,
Driver: config.Driver,
}
}
// NewUsedSpaceFilewalkerCmd creates a new cobra command for running used-space calculation filewalker.
func NewUsedSpaceFilewalkerCmd() *cobra.Command {
var cfg FilewalkerCfg
cmd := &cobra.Command{
Use: lazyfilewalker.UsedSpaceFilewalkerCmdName,
Short: "An internal subcommand used to run used-space calculation filewalker as a separate subprocess with lower IO priority",
RunE: func(cmd *cobra.Command, args []string) error {
ctx, _ := process.Ctx(cmd)
return NewUsedSpaceLazyFilewalkerWithConfig(ctx, zap.L(), &cfg).Run()
},
Hidden: true,
Args: cobra.ExactArgs(0),
}
process.Bind(cmd, &cfg)
return cmd
}
// NewGCFilewalkerCmd creates a new cobra command for running garbage collection filewalker.
func NewGCFilewalkerCmd() *cobra.Command {
var cfg FilewalkerCfg
cmd := &cobra.Command{
Use: lazyfilewalker.GCFilewalkerCmdName,
Short: "An internal subcommand used to run garbage collection filewalker as a separate subprocess with lower IO priority",
RunE: func(cmd *cobra.Command, args []string) error {
ctx, _ := process.Ctx(cmd)
return NewGCLazyFilewalkerWithConfig(ctx, zap.L(), &cfg).Run()
},
Hidden: true,
Args: cobra.ExactArgs(0),
}
process.Bind(cmd, &cfg)
return cmd
}

138
cmd/storagenode/internalcmd/gc_filewalker.go Normal file
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@ -0,0 +1,138 @@
// Copyright (C) 2023 Storj Labs, Inc.
// See LICENSE for copying information.
package internalcmd
import (
"context"
"encoding/json"
"io"
"runtime"
"github.com/zeebo/errs"
"go.uber.org/zap"
"storj.io/common/bloomfilter"
"storj.io/storj/storagenode/iopriority"
"storj.io/storj/storagenode/pieces"
"storj.io/storj/storagenode/pieces/lazyfilewalker"
"storj.io/storj/storagenode/pieces/lazyfilewalker/execwrapper"
"storj.io/storj/storagenode/storagenodedb"
)
// GCLazyFileWalker is an execwrapper.Command for the gc-filewalker.
type GCLazyFileWalker struct {
*RunOptions
}
var _ execwrapper.Command = (*GCLazyFileWalker)(nil)
// NewGCLazyFilewalker creates a new GCLazyFileWalker instance.
func NewGCLazyFilewalker(ctx context.Context, logger *zap.Logger, config lazyfilewalker.Config) *GCLazyFileWalker {
return NewGCLazyFilewalkerWithConfig(ctx, logger, &FilewalkerCfg{config})
}
// NewGCLazyFilewalkerWithConfig creates a new GCLazyFileWalker instance with the given config.
func NewGCLazyFilewalkerWithConfig(ctx context.Context, logger *zap.Logger, config *FilewalkerCfg) *GCLazyFileWalker {
return &GCLazyFileWalker{
RunOptions: DefaultRunOpts(ctx, logger, config),
}
}
// Run runs the GCLazyFileWalker.
func (g *GCLazyFileWalker) Run() (err error) {
if g.Config.LowerIOPriority {
if runtime.GOOS == "linux" {
// Pin the current goroutine to the current OS thread, so we can set the IO priority
// for the current thread.
// This is necessary because Go does use CLONE_IO when creating new threads,
// so they do not share a single IO context.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
}
err = iopriority.SetLowIOPriority()
if err != nil {
return err
}
}
log := g.Logger
// Decode the data struct received from the main process
var req lazyfilewalker.GCFilewalkerRequest
if err = json.NewDecoder(g.stdin).Decode(&req); err != nil {
return errs.New("Error decoding data from stdin: %v", err)
}
// Validate the request data
switch {
case req.SatelliteID.IsZero():
return errs.New("SatelliteID is required")
case req.CreatedBefore.IsZero():
return errs.New("CreatedBefore is required")
}
// We still need the DB in this case because we still have to deal with v0 pieces.
// Once we drop support for v0 pieces, we can remove this.
db, err := storagenodedb.OpenExisting(g.Ctx, log.Named("db"), g.Config.DatabaseConfig())
if err != nil {
return errs.New("Error starting master database on storage node: %v", err)
}
log.Info("Database started")
defer func() {
err = errs.Combine(err, db.Close())
}()
// Decode the bloom filter
filter, err := bloomfilter.NewFromBytes(req.BloomFilter)
if err != nil {
return err
}
log.Info("gc-filewalker started", zap.Time("created_before", req.CreatedBefore), zap.Int("bloom_filter_size", len(req.BloomFilter)))
filewalker := pieces.NewFileWalker(log, db.Pieces(), db.V0PieceInfo())
pieceIDs, piecesCount, piecesSkippedCount, err := filewalker.WalkSatellitePiecesToTrash(g.Ctx, req.SatelliteID, req.CreatedBefore, filter)
if err != nil {
return err
}
resp := lazyfilewalker.GCFilewalkerResponse{
PieceIDs: pieceIDs,
PiecesCount: piecesCount,
PiecesSkippedCount: piecesSkippedCount,
}
log.Info("gc-filewalker completed", zap.Int64("pieces_count", piecesCount), zap.Int64("pieces_skipped_count", piecesSkippedCount))
// encode the response struct and write it to stdout
return json.NewEncoder(g.stdout).Encode(resp)
}
// Start starts the GCLazyFileWalker, assuming it behaves like the Start method on exec.Cmd.
// This is a no-op and only exists to satisfy the execwrapper.Command interface.
// Wait must be called to actually run the command.
func (g *GCLazyFileWalker) Start() error {
return nil
}
// Wait waits for the GCLazyFileWalker to finish, assuming it behaves like the Wait method on exec.Cmd.
func (g *GCLazyFileWalker) Wait() error {
return g.Run()
}
// SetIn sets the stdin of the GCLazyFileWalker.
func (g *GCLazyFileWalker) SetIn(reader io.Reader) {
g.RunOptions.SetIn(reader)
}
// SetOut sets the stdout of the GCLazyFileWalker.
func (g *GCLazyFileWalker) SetOut(writer io.Writer) {
g.RunOptions.SetOut(writer)
}
// SetErr sets the stderr of the GCLazyFileWalker.
func (g *GCLazyFileWalker) SetErr(writer io.Writer) {
g.RunOptions.SetErr(writer)
}

121
cmd/storagenode/internalcmd/used_space_filewalker.go Normal file
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@ -0,0 +1,121 @@
// Copyright (C) 2023 Storj Labs, Inc.
// See LICENSE for copying information.
package internalcmd
import (
"context"
"encoding/json"
"io"
"runtime"
"github.com/zeebo/errs"
"go.uber.org/zap"
"storj.io/storj/storagenode/iopriority"
"storj.io/storj/storagenode/pieces"
"storj.io/storj/storagenode/pieces/lazyfilewalker"
"storj.io/storj/storagenode/pieces/lazyfilewalker/execwrapper"
"storj.io/storj/storagenode/storagenodedb"
)
// UsedSpaceLazyFileWalker is an execwrapper.Command for the used-space-filewalker.
type UsedSpaceLazyFileWalker struct {
*RunOptions
}
var _ execwrapper.Command = (*UsedSpaceLazyFileWalker)(nil)
// NewUsedSpaceLazyFilewalker creates a new UsedSpaceLazyFileWalker instance.
func NewUsedSpaceLazyFilewalker(ctx context.Context, logger *zap.Logger, config lazyfilewalker.Config) *UsedSpaceLazyFileWalker {
return NewUsedSpaceLazyFilewalkerWithConfig(ctx, logger, &FilewalkerCfg{config})
}
// NewUsedSpaceLazyFilewalkerWithConfig creates a new UsedSpaceLazyFileWalker instance with the given config.
func NewUsedSpaceLazyFilewalkerWithConfig(ctx context.Context, logger *zap.Logger, config *FilewalkerCfg) *UsedSpaceLazyFileWalker {
return &UsedSpaceLazyFileWalker{
RunOptions: DefaultRunOpts(ctx, logger, config),
}
}
// Run runs the UsedSpaceLazyFileWalker.
func (u *UsedSpaceLazyFileWalker) Run() (err error) {
if u.Config.LowerIOPriority {
if runtime.GOOS == "linux" {
// Pin the current goroutine to the current OS thread, so we can set the IO priority
// for the current thread.
// This is necessary because Go does use CLONE_IO when creating new threads,
// so they do not share a single IO context.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
}
err = iopriority.SetLowIOPriority()
if err != nil {
return err
}
}
log := u.Logger
// Decode the data struct received from the main process
var req lazyfilewalker.UsedSpaceRequest
if err = json.NewDecoder(u.stdin).Decode(&req); err != nil {
return errs.New("Error decoding data from stdin: %v", err)
}
if req.SatelliteID.IsZero() {
return errs.New("SatelliteID is required")
}
// We still need the DB in this case because we still have to deal with v0 pieces.
// Once we drop support for v0 pieces, we can remove this.
db, err := storagenodedb.OpenExisting(u.Ctx, log.Named("db"), u.Config.DatabaseConfig())
if err != nil {
return errs.New("Error starting master database on storage node: %v", err)
}
log.Info("Database started")
defer func() {
err = errs.Combine(err, db.Close())
}()
log.Info("used-space-filewalker started")
filewalker := pieces.NewFileWalker(log, db.Pieces(), db.V0PieceInfo())
total, contentSize, err := filewalker.WalkAndComputeSpaceUsedBySatellite(u.Ctx, req.SatelliteID)
if err != nil {
return err
}
resp := lazyfilewalker.UsedSpaceResponse{PiecesTotal: total, PiecesContentSize: contentSize}
log.Info("used-space-filewalker completed", zap.Int64("pieces_total", total), zap.Int64("content_size", contentSize))
// encode the response struct and write it to stdout
return json.NewEncoder(u.stdout).Encode(resp)
}
// Start starts the GCLazyFileWalker, assuming it behaves like the Start method on exec.Cmd.
// This is a no-op and only exists to satisfy the execwrapper.Command interface.
// Wait must be called to actually run the command.
func (u *UsedSpaceLazyFileWalker) Start() error {
return nil
}
// Wait waits for the GCLazyFileWalker to finish, assuming it behaves like the Wait method on exec.Cmd.
func (u *UsedSpaceLazyFileWalker) Wait() error {
return u.Run()
}
// SetIn sets the stdin of the UsedSpaceLazyFileWalker.
func (u *UsedSpaceLazyFileWalker) SetIn(reader io.Reader) {
u.RunOptions.SetIn(reader)
}
// SetOut sets the stdout of the UsedSpaceLazyFileWalker.
func (u *UsedSpaceLazyFileWalker) SetOut(writer io.Writer) {
u.RunOptions.SetOut(writer)
}
// SetErr sets the stderr of the UsedSpaceLazyFileWalker.
func (u *UsedSpaceLazyFileWalker) SetErr(writer io.Writer) {
u.RunOptions.SetErr(writer)
}

5
cmd/storagenode/root.go
View File

@ -9,6 +9,7 @@ import (
"storj.io/common/fpath"
"storj.io/private/cfgstruct"
"storj.io/storj/cmd/storagenode/internalcmd"
"storj.io/storj/storagenode"
)
@ -59,8 +60,8 @@ func newRootCmd(setDefaults bool) (*cobra.Command, *Factory) {
newGracefulExitInitCmd(factory),
newGracefulExitStatusCmd(factory),
// internal hidden commands
newUsedSpaceFilewalkerCmd(),
newGCFilewalkerCmd(),
internalcmd.NewUsedSpaceFilewalkerCmd(),
internalcmd.NewGCFilewalkerCmd(),
)
return cmd, factory

14
storagenode/peer.go
View File

@ -75,6 +75,9 @@ var (
//
// architecture: Master Database
type DB interface {
// Config returns the configuration used to initialize the database.
Config() storagenodedb.Config
// MigrateToLatest initializes the database
MigrateToLatest(ctx context.Context) error
@ -466,16 +469,7 @@ func New(log *zap.Logger, full *identity.FullIdentity, db DB, revocationDB exten
return nil, errs.Combine(err, peer.Close())
}
dbCfg := config.DatabaseConfig()
lazyfilewalkerCfg := lazyfilewalker.Config{
Storage: dbCfg.Storage,
Info: dbCfg.Info,
Info2: dbCfg.Info2,
Pieces: dbCfg.Pieces,
Filestore: dbCfg.Filestore,
Driver: dbCfg.Driver,
}
peer.Storage2.LazyFileWalker = lazyfilewalker.NewSupervisor(peer.Log.Named("lazyfilewalker"), executable, lazyfilewalkerCfg.Args())
peer.Storage2.LazyFileWalker = lazyfilewalker.NewSupervisor(peer.Log.Named("lazyfilewalker"), db.Config().LazyFilewalkerConfig(), executable)
}
peer.Storage2.Store = pieces.NewStore(peer.Log.Named("pieces"),

5
storagenode/pieces/lazyfilewalker/config.go
View File

@ -4,6 +4,8 @@
package lazyfilewalker
import (
"strconv"
"storj.io/storj/storagenode/blobstore/filestore"
)
@ -16,6 +18,8 @@ type Config struct {
Driver string `help:"database driver to use" default:"sqlite3"`
Pieces string `help:"path to store pieces in"`
Filestore filestore.Config
LowerIOPriority bool `help:"if true, the process will run with lower IO priority" default:"true"`
}
// Args returns the flags to be passed lazyfilewalker process.
@ -33,5 +37,6 @@ func (config *Config) Args() []string {
// use the json formatter in the subprocess, so we could read lines and re-log them in the main process
// with all the fields intact.
"--log.encoding", "json",
"--lower-io-priority", strconv.FormatBool(config.LowerIOPriority),
}
}

6
storagenode/pieces/lazyfilewalker/supervisor.go
View File

@ -45,11 +45,11 @@ type Supervisor struct {
}
// NewSupervisor creates a new lazy filewalker Supervisor.
func NewSupervisor(log *zap.Logger, executable string, args []string) *Supervisor {
func NewSupervisor(log *zap.Logger, config Config, executable string) *Supervisor {
return &Supervisor{
log: log,
gcArgs: append([]string{GCFilewalkerCmdName}, args...),
usedSpaceArgs: append([]string{UsedSpaceFilewalkerCmdName}, args...),
gcArgs: append([]string{GCFilewalkerCmdName}, config.Args()...),
usedSpaceArgs: append([]string{UsedSpaceFilewalkerCmdName}, config.Args()...),
executable: executable,
}
}

21
storagenode/storagenodedb/database.go
View File

@ -31,6 +31,7 @@ import (
"storj.io/storj/storagenode/orders"
"storj.io/storj/storagenode/payouts"
"storj.io/storj/storagenode/pieces"
"storj.io/storj/storagenode/pieces/lazyfilewalker"
"storj.io/storj/storagenode/pricing"
"storj.io/storj/storagenode/reputation"
"storj.io/storj/storagenode/satellites"
@ -87,6 +88,21 @@ type Config struct {
TestingDisableWAL bool
}
// LazyFilewalkerConfig creates a lazyfilewalker.Config from storagenodedb.Config.
//
// TODO: this is a temporary solution to avoid circular dependencies.
func (config Config) LazyFilewalkerConfig() lazyfilewalker.Config {
return lazyfilewalker.Config{
Storage: config.Storage,
Info: config.Info,
Info2: config.Info2,
Driver: config.Driver,
Pieces: config.Pieces,
Filestore: config.Filestore,
LowerIOPriority: true,
}
}
// DB contains access to different database tables.
type DB struct {
log *zap.Logger
@ -571,6 +587,11 @@ func (db *DB) DBDirectory() string {
return db.dbDirectory
}
// Config returns the database configuration used to initialize the database.
func (db *DB) Config() Config {
return db.config
}
// migrateToDB is a helper method that performs the migration from the
// deprecatedInfoDB to the specified new db. It first closes and deletes any
// existing database to guarantee idempotence. After migration it also closes