lazyfilewalker

Documentation

Index

• Constants
• type Config
  • func (config *Config) Args() []string
• type GCFilewalkerRequest
• type GCFilewalkerResponse
• type Supervisor
  • func NewSupervisor(log *zap.Logger, config Config, executable string) *Supervisor
  • func (fw *Supervisor) TestingSetGCCmd(cmd execwrapper.Command)
  • func (fw *Supervisor) TestingSetUsedSpaceCmd(cmd execwrapper.Command)
  • func (fw *Supervisor) WalkAndComputeSpaceUsedBySatellite(ctx context.Context, satelliteID storj.NodeID) (piecesTotal int64, piecesContentSize int64, err error)
  • func (fw *Supervisor) WalkSatellitePiecesToTrash(ctx context.Context, satelliteID storj.NodeID, createdBefore time.Time, ...) (pieceIDs []storj.PieceID, piecesCount, piecesSkipped int64, err error)
• type UsedSpaceRequest
• type UsedSpaceResponse

Constants

const (
	// UsedSpaceFilewalkerCmdName is the name of the used-space-filewalker subcommand.
	UsedSpaceFilewalkerCmdName = "used-space-filewalker"
	// GCFilewalkerCmdName is the name of the gc-filewalker subcommand.
	GCFilewalkerCmdName = "gc-filewalker"
)

Types

type Config

type Config struct {
	// TODO: just trying to match the names in storagenodedb.Config. Change these to be more descriptive.
	Storage   string `help:"path to the storage database directory"`
	Info      string `help:"path to the piecestore db"`
	Info2     string `help:"path to the info database"`
	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"`
}

Config is the config for lazyfilewalker process.

func (*Config) Args

func (config *Config) Args() []string

Args returns the flags to be passed lazyfilewalker process.

type GCFilewalkerRequest

type GCFilewalkerRequest struct {
	SatelliteID   storj.NodeID `json:"satelliteID"`
	BloomFilter   []byte       `json:"bloomFilter"`
	CreatedBefore time.Time    `json:"createdBefore"`
}

GCFilewalkerRequest is the request struct for the gc-filewalker process.

type GCFilewalkerResponse

type GCFilewalkerResponse struct {
	PieceIDs           []storj.PieceID `json:"pieceIDs"`
	PiecesSkippedCount int64           `json:"piecesSkippedCount"`
	PiecesCount        int64           `json:"piecesCount"`
}

GCFilewalkerResponse is the response struct for the gc-filewalker process.

type Supervisor

type Supervisor struct {
	// contains filtered or unexported fields
}

Supervisor manages the lazyfilewalker subprocesses.

TODO: we should keep track of the number of subprocesses we have running and limit it to a configurable number, and queue them, since they are run per satellite.

func NewSupervisor

func NewSupervisor(log *zap.Logger, config Config, executable string) *Supervisor

NewSupervisor creates a new lazy filewalker Supervisor.

func (*Supervisor) TestingSetGCCmd

func (fw *Supervisor) TestingSetGCCmd(cmd execwrapper.Command)

TestingSetGCCmd sets the command for the gc-filewalker subprocess. The cmd acts as a replacement for the subprocess.

func (*Supervisor) TestingSetUsedSpaceCmd

func (fw *Supervisor) TestingSetUsedSpaceCmd(cmd execwrapper.Command)

TestingSetUsedSpaceCmd sets the command for the used-space-filewalker subprocess. The cmd acts as a replacement for the subprocess.

func (*Supervisor) WalkAndComputeSpaceUsedBySatellite

func (fw *Supervisor) WalkAndComputeSpaceUsedBySatellite(ctx context.Context, satelliteID storj.NodeID) (piecesTotal int64, piecesContentSize int64, err error)

WalkAndComputeSpaceUsedBySatellite returns the total used space by satellite.

func (*Supervisor) WalkSatellitePiecesToTrash

func (fw *Supervisor) WalkSatellitePiecesToTrash(ctx context.Context, satelliteID storj.NodeID, createdBefore time.Time, filter *bloomfilter.Filter) (pieceIDs []storj.PieceID, piecesCount, piecesSkipped int64, err error)

WalkSatellitePiecesToTrash returns a list of pieceIDs that need to be trashed for the given satellite.

type UsedSpaceRequest

type UsedSpaceRequest struct {
	SatelliteID storj.NodeID `json:"satelliteID"`
}

UsedSpaceRequest is the request struct for the used-space-filewalker process.

type UsedSpaceResponse

type UsedSpaceResponse struct {
	PiecesTotal       int64 `json:"piecesTotal"`
	PiecesContentSize int64 `json:"piecesContentSize"`
}

UsedSpaceResponse is the response struct for the used-space-filewalker process.