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service.go
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service.go
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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package orders
import (
"context"
"io"
"time"
"github.com/zeebo/errs"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
monkit "gopkg.in/spacemonkeygo/monkit.v2"
"storj.io/storj/internal/sync2"
"storj.io/storj/pkg/pb"
"storj.io/storj/pkg/rpc"
"storj.io/storj/pkg/storj"
"storj.io/storj/storagenode/trust"
)
var (
// OrderError represents errors with orders
OrderError = errs.Class("order")
// OrderNotFoundError is the error returned when an order is not found
OrderNotFoundError = errs.Class("order not found")
mon = monkit.Package()
)
// Info contains full information about an order.
type Info struct {
Limit *pb.OrderLimit
Order *pb.Order
}
// ArchivedInfo contains full information about an archived order.
type ArchivedInfo struct {
Limit *pb.OrderLimit
Order *pb.Order
Status Status
ArchivedAt time.Time
}
// Status is the archival status of the order.
type Status byte
// Statuses for satellite responses.
const (
StatusUnsent Status = iota
StatusAccepted
StatusRejected
)
// ArchiveRequest defines arguments for archiving a single order.
type ArchiveRequest struct {
Satellite storj.NodeID
Serial storj.SerialNumber
Status Status
}
// DB implements storing orders for sending to the satellite.
//
// architecture: Database
type DB interface {
// Enqueue inserts order to the list of orders needing to be sent to the satellite.
Enqueue(ctx context.Context, info *Info) error
// ListUnsent returns orders that haven't been sent yet.
ListUnsent(ctx context.Context, limit int) ([]*Info, error)
// ListUnsentBySatellite returns orders that haven't been sent yet grouped by satellite.
ListUnsentBySatellite(ctx context.Context) (map[storj.NodeID][]*Info, error)
// Archive marks order as being handled.
Archive(ctx context.Context, archivedAt time.Time, requests ...ArchiveRequest) error
// ListArchived returns orders that have been sent.
ListArchived(ctx context.Context, limit int) ([]*ArchivedInfo, error)
// CleanArchive deletes all entries older than ttl
CleanArchive(ctx context.Context, ttl time.Duration) (int, error)
}
// Config defines configuration for sending orders.
type Config struct {
SenderInterval time.Duration `help:"duration between sending" default:"1h0m0s"`
SenderTimeout time.Duration `help:"timeout for sending" default:"1h0m0s"`
SenderDialTimeout time.Duration `help:"timeout for dialing satellite during sending orders" default:"1m0s"`
SenderRequestTimeout time.Duration `help:"timeout for read/write operations during sending" default:"1h0m0s"`
CleanupInterval time.Duration `help:"duration between archive cleanups" default:"24h0m0s"`
ArchiveTTL time.Duration `help:"length of time to archive orders before deletion" default:"168h0m0s"` // 7 days
}
// Service sends every interval unsent orders to the satellite.
//
// architecture: Chore
type Service struct {
log *zap.Logger
config Config
dialer rpc.Dialer
orders DB
trust *trust.Pool
Sender sync2.Cycle
Cleanup sync2.Cycle
}
// NewService creates an order service.
func NewService(log *zap.Logger, dialer rpc.Dialer, orders DB, trust *trust.Pool, config Config) *Service {
return &Service{
log: log,
dialer: dialer,
orders: orders,
config: config,
trust: trust,
Sender: *sync2.NewCycle(config.SenderInterval),
Cleanup: *sync2.NewCycle(config.CleanupInterval),
}
}
// Run sends orders on every interval to the appropriate satellites.
func (service *Service) Run(ctx context.Context) (err error) {
defer mon.Task()(&ctx)(&err)
var group errgroup.Group
service.Sender.Start(ctx, &group, service.sendOrders)
service.Cleanup.Start(ctx, &group, service.cleanArchive)
return group.Wait()
}
func (service *Service) cleanArchive(ctx context.Context) (err error) {
defer mon.Task()(&ctx)(&err)
service.log.Debug("cleaning")
deleted, err := service.orders.CleanArchive(ctx, service.config.ArchiveTTL)
if err != nil {
service.log.Error("cleaning archive", zap.Error(err))
return nil
}
service.log.Debug("cleanup finished", zap.Int("items deleted", deleted))
return nil
}
func (service *Service) sendOrders(ctx context.Context) (err error) {
defer mon.Task()(&ctx)(&err)
service.log.Debug("sending")
const batchSize = 1000
ordersBySatellite, err := service.orders.ListUnsentBySatellite(ctx)
if err != nil {
if ordersBySatellite == nil {
service.log.Error("listing orders", zap.Error(err))
return nil
}
service.log.Warn("DB contains invalid marshalled orders", zap.Error(err))
}
requests := make(chan ArchiveRequest, batchSize)
var batchGroup errgroup.Group
batchGroup.Go(func() error { return service.handleBatches(ctx, requests) })
if len(ordersBySatellite) > 0 {
var group errgroup.Group
ctx, cancel := context.WithTimeout(ctx, service.config.SenderTimeout)
defer cancel()
for satelliteID, orders := range ordersBySatellite {
satelliteID, orders := satelliteID, orders
group.Go(func() error {
service.Settle(ctx, satelliteID, orders, requests)
return nil
})
}
_ = group.Wait() // doesn't return errors
} else {
service.log.Debug("no orders to send")
}
close(requests)
err = batchGroup.Wait()
if err != nil {
service.log.Error("archiving orders", zap.Error(err))
}
return nil
}
// Settle uploads orders to the satellite.
func (service *Service) Settle(ctx context.Context, satelliteID storj.NodeID, orders []*Info, requests chan ArchiveRequest) {
log := service.log.Named(satelliteID.String())
err := service.settle(ctx, log, satelliteID, orders, requests)
if err != nil {
log.Error("failed to settle orders", zap.Error(err))
}
}
func (service *Service) handleBatches(ctx context.Context, requests chan ArchiveRequest) (err error) {
defer mon.Task()(&ctx)(&err)
// In case anything goes wrong, discard everything from the channel.
defer func() {
for range requests {
}
}()
buffer := make([]ArchiveRequest, 0, cap(requests))
archive := func(ctx context.Context, archivedAt time.Time, requests ...ArchiveRequest) error {
if err := service.orders.Archive(ctx, time.Now().UTC(), buffer...); err != nil {
if !OrderNotFoundError.Has(err) {
return err
}
service.log.Warn("some unsent order aren't in the DB", zap.Error(err))
}
return nil
}
for request := range requests {
buffer = append(buffer, request)
if len(buffer) < cap(buffer) {
continue
}
if err := archive(ctx, time.Now().UTC(), buffer...); err != nil {
return err
}
buffer = buffer[:0]
}
if len(buffer) > 0 {
return archive(ctx, time.Now().UTC(), buffer...)
}
return nil
}
func (service *Service) settle(ctx context.Context, log *zap.Logger, satelliteID storj.NodeID, orders []*Info, requests chan ArchiveRequest) (err error) {
defer mon.Task()(&ctx)(&err)
log.Info("sending", zap.Int("count", len(orders)))
defer log.Info("finished")
address, err := service.trust.GetAddress(ctx, satelliteID)
if err != nil {
return OrderError.New("unable to get satellite address: %v", err)
}
conn, err := service.dialer.DialAddressID(ctx, address, satelliteID)
if err != nil {
return OrderError.New("unable to connect to the satellite: %v", err)
}
defer func() { err = errs.Combine(err, conn.Close()) }()
stream, err := conn.OrdersClient().Settlement(ctx)
if err != nil {
return OrderError.New("failed to start settlement: %v", err)
}
var group errgroup.Group
var sendErrors errs.Group
group.Go(func() error {
for _, order := range orders {
req := pb.SettlementRequest{
Limit: order.Limit,
Order: order.Order,
}
err := stream.Send(&req)
if err != nil {
err = OrderError.New("sending settlement agreements returned an error: %v", err)
log.Error("rpc client when sending new orders settlements",
zap.Error(err),
zap.Any("request", req),
)
sendErrors.Add(err)
return nil
}
}
err := stream.CloseSend()
if err != nil {
err = OrderError.New("CloseSend settlement agreements returned an error: %v", err)
log.Error("rpc client error when closing sender ", zap.Error(err))
sendErrors.Add(err)
}
return nil
})
var errList errs.Group
for {
response, err := stream.Recv()
if err != nil {
if err == io.EOF {
break
}
err = OrderError.New("failed to receive settlement response: %v", err)
log.Error("rpc client error when receiveing new order settlements", zap.Error(err))
errList.Add(err)
break
}
var status Status
switch response.Status {
case pb.SettlementResponse_ACCEPTED:
status = StatusAccepted
case pb.SettlementResponse_REJECTED:
status = StatusRejected
default:
err := OrderError.New("unexpected settlement status response: %d", response.Status)
log.Error("rpc client received a unexpected new orders setlement status",
zap.Error(err), zap.Any("response", response),
)
errList.Add(err)
continue
}
requests <- ArchiveRequest{
Satellite: satelliteID,
Serial: response.SerialNumber,
Status: status,
}
}
// errors of this group are reported to sendErrors and it always return nil
_ = group.Wait()
errList.Add(sendErrors...)
return errList.Err()
}
// Close stops the sending service.
func (service *Service) Close() error {
service.Sender.Close()
service.Cleanup.Close()
return nil
}