recovery

package

v0.0.0-...-daaf58e Latest Latest Go to latest Published: Sep 28, 2020 License: MIT Imports: 9 Imported by: 0

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const CURRENT_PROPOSAL_FILENAME = "currentproposalid.csv"

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const LOG_FILENAME string = "log.csv"

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const MIN_PROPOSAL_FILENAME string = "minproposalid.csv"

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const PEERS_FILENAME string = "peers.csv"

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const RECOVERY_DIR string = "coldstorage"

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const RECOVERY_DIR_PATTERN string = RECOVERY_DIR + "/%d"

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const RECOVERY_FILE_PATTERN string = RECOVERY_DIR_PATTERN + "/%s"

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

func ConstructManager() (*Manager, error)

Creates disk access manager for backup & recovery files

func (this *Manager) RecoverCurrentProposalId(roleId uint64) (proposal.Id, error)

func (this *Manager) RecoverLog(roleId uint64) ([]string, []proposal.Id, error)

Recovers replicated log from disk.

func (this *Manager) RecoverMinProposalId(roleId uint64) (proposal.Id, error)

Recovers the MinProposalId from disk.

func (this *Manager) RetrieveAddresses() (map[uint64]string, error)

Reads the list of peers from a file on disk

func (this *Manager) UpdateCurrentProposalId(roleId uint64, id proposal.Id) error

func (this *Manager) UpdateLogRecord(roleId uint64, index int, value string, id proposal.Id) error

Updates a record in the replicated log on disk.

func (this *Manager) UpdateMinProposalId(roleId uint64, id proposal.Id) error