80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package repairer
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import (
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"context"
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"time"
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"go.uber.org/zap"
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"storj.io/storj/internal/sync2"
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"storj.io/storj/pkg/datarepair/queue"
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"storj.io/storj/pkg/storj"
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"storj.io/storj/storage"
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)
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// SegmentRepairer is a repairer for segments
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type SegmentRepairer interface {
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Repair(ctx context.Context, path storj.Path, lostPieces []int32) (err error)
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}
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// repairService contains the information needed to run the repair service
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type repairService struct {
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queue queue.RepairQueue
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repairer SegmentRepairer
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limiter *sync2.Limiter
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ticker *time.Ticker
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}
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func newService(queue queue.RepairQueue, repairer SegmentRepairer, interval time.Duration, concurrency int) *repairService {
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return &repairService{
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queue: queue,
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repairer: repairer,
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limiter: sync2.NewLimiter(concurrency),
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ticker: time.NewTicker(interval),
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}
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}
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// Run runs the repairer service
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func (service *repairService) Run(ctx context.Context) (err error) {
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defer mon.Task()(&ctx)(&err)
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// wait for all repairs to complete
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defer service.limiter.Wait()
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for {
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err := service.process(ctx)
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if err != nil {
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zap.L().Error("process", zap.Error(err))
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}
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select {
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case <-service.ticker.C: // wait for the next interval to happen
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case <-ctx.Done(): // or the repairer service is canceled via context
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return ctx.Err()
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}
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}
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}
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// process picks an item from repair queue and spawns a repair worker
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func (service *repairService) process(ctx context.Context) error {
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seg, err := service.queue.Dequeue(ctx)
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if err != nil {
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if err == storage.ErrEmptyQueue {
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return nil
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}
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return err
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}
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service.limiter.Go(ctx, func() {
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err := service.repairer.Repair(ctx, seg.GetPath(), seg.GetLostPieces())
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if err != nil {
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zap.L().Error("Repair failed", zap.Error(err))
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}
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})
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return nil
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}
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