server

var (

	// ErrHardSettingChanged indicates that one or more of the hard settings
	// changed.
	ErrHardSettingChanged = errors.New("hard setting changed")
	// ErrDirMarkedAsDeleted is the error used to indicate that the directory has
	// been marked as deleted and can not be used again.
	ErrDirMarkedAsDeleted = errors.New("trying to use a dir marked as deleted")
	// ErrHostnameChanged is the error used to indicate that the hostname changed.
	ErrHostnameChanged = errors.New("hostname changed")
	// ErrDeploymentIDChanged is the error used to indicate that the deployment
	// ID changed.
	ErrDeploymentIDChanged = errors.New("deployment ID changed")
	// ErrAddressByNodeHostIDChanged is the error used to indicate that the
	// AddressByNodeHostID setting has changed.
	ErrAddressByNodeHostIDChanged = errors.New("AddressByNodeHostID changed")
	// ErrLogDBType is the error used to indicate that the LogDB type changed.
	ErrLogDBType = errors.New("logdb type changed")
	// ErrNotOwner indicates that the data directory belong to another NodeHost
	// instance.
	ErrNotOwner = errors.New("not the owner of the data directory")
	// ErrLockDirectory indicates that obtaining exclusive lock to the data
	// directory failed.
	ErrLockDirectory = errors.New("failed to lock data directory")
	// ErrHardSettingsChanged indicates that hard settings changed.
	ErrHardSettingsChanged = errors.New("internal/settings/hard.go settings changed")
	// ErrIncompatibleData indicates that the specified data directory contains
	// incompatible data.
	ErrIncompatibleData = errors.New("incompatible LogDB data format")
	// ErrLogDBBrokenChange indicates that your NodeHost failed to be created as
	// your code is hit by the LogDB breaking change introduced in v3.0. Set your
	// NodeHostConfig.LogDBFactory to rocksdb.OpenBatchedLogDB to continue.
	ErrLogDBBrokenChange = errors.New("using new LogDB on existing Raft Log")
)

var (
	// ErrSnapshotOutOfDate is the error to indicate that snapshot is out of date.
	ErrSnapshotOutOfDate = errors.New("snapshot out of date")
	// MetadataFilename is the filename of a snapshot's metadata file.
	MetadataFilename = "snapshot.metadata"
	// SnapshotFileSuffix is the filename suffix of a snapshot file.
	SnapshotFileSuffix = "gbsnap"
	// SnapshotDirNameRe is the regex of snapshot names.
	SnapshotDirNameRe = regexp.MustCompile(`^snapshot-[0-9A-F]+$`)
	// SnapshotDirNamePartsRe is used to find the index value from snapshot folder name.
	SnapshotDirNamePartsRe = regexp.MustCompile(`^snapshot-([0-9A-F]+)$`)
	// GenSnapshotDirNameRe is the regex of temp snapshot directory name used when
	// generating snapshots.
	GenSnapshotDirNameRe = regexp.MustCompile(`^snapshot-[0-9A-F]+-[0-9A-F]+\.generating$`)
	// RecvSnapshotDirNameRe is the regex of temp snapshot directory name used when
	// receiving snapshots from remote NodeHosts.
	RecvSnapshotDirNameRe = regexp.MustCompile(`^snapshot-[0-9A-F]+-[0-9A-F]+\.receiving$`)
)