c9d900fe4d
* Process for updating node stats in kademlia * Mutex lock * Rename and set up the refresher * Wrap errors * Lock should be around the if * Address comments; Build updateSelf funciton in Kademlia Routing Table * Added test * Address comments
78 lines
1.8 KiB
Go
78 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 psserver
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import (
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"context"
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"time"
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"github.com/zeebo/errs"
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"go.uber.org/zap"
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"storj.io/storj/pkg/kademlia"
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"storj.io/storj/pkg/pb"
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)
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var (
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// Error is a standard error class for this package.
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Error = errs.Class("kademlia bucket refresher error")
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)
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// refreshService contains the information needed to run the bucket refresher service
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type refreshService struct {
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log *zap.Logger
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ticker *time.Ticker
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rt *kademlia.RoutingTable
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server *Server
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}
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func newService(log *zap.Logger, interval time.Duration, rt *kademlia.RoutingTable, server *Server) *refreshService {
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return &refreshService{
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log: log,
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ticker: time.NewTicker(interval),
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rt: rt,
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server: server,
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}
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}
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// Run runs the bucket refresher service
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func (service *refreshService) Run(ctx context.Context) (err error) {
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defer mon.Task()(&ctx)(&err)
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for {
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err := service.process(ctx)
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if err != nil {
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service.log.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 bucket refresher 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 will attempt to update the kademlia bucket with the latest information about the storage node
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func (service *refreshService) process(ctx context.Context) error {
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stats, err := service.server.Stats(ctx, nil)
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if err != nil {
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return Error.Wrap(err)
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}
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self := service.rt.Local()
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self.Restrictions = &pb.NodeRestrictions{
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FreeBandwidth: stats.AvailableBandwidth,
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FreeDisk: stats.AvailableSpace,
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}
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// Update the routing table with latest restrictions
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if err := service.rt.UpdateSelf(&self); err != nil {
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return Error.Wrap(err)
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}
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return nil
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}
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