storj/storagenode/contact/chore.go
Jeff Wendling 098cbc9c67 all: use pkg/rpc instead of pkg/transport
all of the packages and tests work with both grpc and
drpc. we'll probably need to do some jenkins pipelines
to run the tests with drpc as well.

most of the changes are really due to a bit of cleanup
of the pkg/transport.Client api into an rpc.Dialer in
the spirit of a net.Dialer. now that we don't need
observers, we can pass around stateless configuration
to everything rather than stateful things that issue
observations. it also adds a DialAddressID for the
case where we don't have a pb.Node, but we do have an
address and want to assert some ID. this happened
pretty frequently, and now there's no more weird
contortions creating custom tls options, etc.

a lot of the other changes are being consistent/using
the abstractions in the rpc package to do rpc style
things like finding peer information, or checking
status codes.

Change-Id: Ief62875e21d80a21b3c56a5a37f45887679f9412
2019-09-25 15:37:06 -06:00

117 lines
2.7 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package contact
import (
"context"
"math/rand"
"time"
"github.com/zeebo/errs"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
"storj.io/storj/internal/sync2"
"storj.io/storj/pkg/pb"
"storj.io/storj/pkg/rpc"
"storj.io/storj/storagenode/trust"
)
// Chore is the contact chore for nodes announcing themselves to their trusted satellites
//
// architecture: Chore
type Chore struct {
log *zap.Logger
service *Service
dialer rpc.Dialer
trust *trust.Pool
maxSleep time.Duration
Loop *sync2.Cycle
}
// NewChore creates a new contact chore
func NewChore(log *zap.Logger, interval time.Duration, maxSleep time.Duration, trust *trust.Pool, dialer rpc.Dialer, service *Service) *Chore {
return &Chore{
log: log,
service: service,
dialer: dialer,
trust: trust,
maxSleep: maxSleep,
Loop: sync2.NewCycle(interval),
}
}
// Run the contact chore on a regular interval with jitter
func (chore *Chore) Run(ctx context.Context) (err error) {
defer mon.Task()(&ctx)(&err)
chore.log.Info("Storagenode contact chore starting up")
return chore.Loop.Run(ctx, func(ctx context.Context) error {
if err := chore.randomDurationSleep(ctx); err != nil {
return err
}
if err := chore.pingSatellites(ctx); err != nil {
chore.log.Error("pingSatellites failed", zap.Error(err))
}
return nil
})
}
func (chore *Chore) pingSatellites(ctx context.Context) (err error) {
defer mon.Task()(&ctx)(&err)
var group errgroup.Group
self := chore.service.Local()
satellites := chore.trust.GetSatellites(ctx)
for _, satellite := range satellites {
satellite := satellite
addr, err := chore.trust.GetAddress(ctx, satellite)
if err != nil {
chore.log.Error("getting satellite address", zap.Error(err))
continue
}
group.Go(func() error {
conn, err := chore.dialer.DialAddressID(ctx, addr, satellite)
if err != nil {
return err
}
defer func() { err = errs.Combine(err, conn.Close()) }()
_, err = conn.NodeClient().CheckIn(ctx, &pb.CheckInRequest{
Address: self.Address.GetAddress(),
Version: &self.Version,
Capacity: &self.Capacity,
Operator: &self.Operator,
})
return err
})
}
return group.Wait()
}
// randomDurationSleep sleeps for random interval in [0;maxSleep)
// returns error if context was cancelled
func (chore *Chore) randomDurationSleep(ctx context.Context) error {
if chore.maxSleep <= 0 {
return nil
}
jitter := time.Duration(rand.Int63n(int64(chore.maxSleep)))
if !sync2.Sleep(ctx, jitter) {
return ctx.Err()
}
return nil
}
// Close stops the contact chore
func (chore *Chore) Close() error {
chore.Loop.Close()
return nil
}