storj/satellite/gracefulexit/db.go

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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package gracefulexit
import (
"context"
"time"
"storj.io/common/storj"
"storj.io/common/uuid"
"storj.io/storj/satellite/metabase"
)
// This whole file can be removed when we are using TimeBased GE everywhere.
// Progress represents the persisted graceful exit progress record.
type Progress struct {
NodeID storj.NodeID
BytesTransferred int64
PiecesTransferred int64
PiecesFailed int64
UpdatedAt time.Time
}
// TransferQueueItem represents the persisted graceful exit queue record.
type TransferQueueItem struct {
NodeID storj.NodeID
StreamID uuid.UUID
Position metabase.SegmentPosition
PieceNum int32
RootPieceID storj.PieceID
DurabilityRatio float64
QueuedAt time.Time
RequestedAt *time.Time
LastFailedAt *time.Time
LastFailedCode *int
FailedCount *int
FinishedAt *time.Time
OrderLimitSendCount int
}
// DB implements CRUD operations for graceful exit service.
//
// architecture: Database
type DB interface {
// IncrementProgress increments transfer stats for a node.
IncrementProgress(ctx context.Context, nodeID storj.NodeID, bytes int64, successfulTransfers int64, failedTransfers int64) error
// GetProgress gets a graceful exit progress entry.
GetProgress(ctx context.Context, nodeID storj.NodeID) (*Progress, error)
// Enqueue batch inserts graceful exit transfer queue entries it does not exist.
Enqueue(ctx context.Context, items []TransferQueueItem, batchSize int) error
// UpdateTransferQueueItem creates a graceful exit transfer queue entry.
UpdateTransferQueueItem(ctx context.Context, item TransferQueueItem) error
// DeleteTransferQueueItem deletes a graceful exit transfer queue entry.
DeleteTransferQueueItem(ctx context.Context, nodeID storj.NodeID, StreamID uuid.UUID, Position metabase.SegmentPosition, pieceNum int32) error
// DeleteTransferQueueItem deletes a graceful exit transfer queue entries by nodeID.
DeleteTransferQueueItems(ctx context.Context, nodeID storj.NodeID) error
// DeleteFinishedTransferQueueItem deletes finished graceful exit transfer queue entries.
DeleteFinishedTransferQueueItems(ctx context.Context, nodeID storj.NodeID) error
// DeleteAllFinishedTransferQueueItems deletes all graceful exit transfer
// queue items whose nodes have finished the exit before the indicated time
// returning the total number of deleted items.
DeleteAllFinishedTransferQueueItems(ctx context.Context, before time.Time, asOfSystemTimeInterval time.Duration, batchSize int) (count int64, err error)
// DeleteFinishedExitProgress deletes exit progress entries for nodes that
// finished exiting before the indicated time, returns number of deleted entries.
DeleteFinishedExitProgress(ctx context.Context, before time.Time, asOfSystemTimeInterval time.Duration) (count int64, err error)
// GetFinishedExitNodes gets nodes that are marked having finished graceful exit before a given time.
GetFinishedExitNodes(ctx context.Context, before time.Time, asOfSystemTimeInterval time.Duration) (finishedNodes []storj.NodeID, err error)
// GetTransferQueueItem gets a graceful exit transfer queue entry.
GetTransferQueueItem(ctx context.Context, nodeID storj.NodeID, StreamID uuid.UUID, Position metabase.SegmentPosition, pieceNum int32) (*TransferQueueItem, error)
// GetIncomplete gets incomplete graceful exit transfer queue entries ordered by durability ratio and queued date ascending.
GetIncomplete(ctx context.Context, nodeID storj.NodeID, limit int, offset int64) ([]*TransferQueueItem, error)
// GetIncompleteNotFailed gets incomplete graceful exit transfer queue entries in the database ordered by durability ratio and queued date ascending.
GetIncompleteNotFailed(ctx context.Context, nodeID storj.NodeID, limit int, offset int64) ([]*TransferQueueItem, error)
// GetIncompleteNotFailed gets incomplete graceful exit transfer queue entries that have failed <= maxFailures times, ordered by durability ratio and queued date ascending.
GetIncompleteFailed(ctx context.Context, nodeID storj.NodeID, maxFailures int, limit int, offset int64) ([]*TransferQueueItem, error)
// IncrementOrderLimitSendCount increments the number of times a node has been sent an order limit for transferring.
IncrementOrderLimitSendCount(ctx context.Context, nodeID storj.NodeID, StreamID uuid.UUID, Position metabase.SegmentPosition, pieceNum int32) error
// CountFinishedTransferQueueItemsByNode return a map of the nodes which has
// finished the exit before the indicated time but there are at least one item
// left in the transfer queue.
CountFinishedTransferQueueItemsByNode(ctx context.Context, before time.Time, asOfSystemTimeInterval time.Duration) (map[storj.NodeID]int64, error)
}