5e1b02ca8b
* intial changes to migrate statdb to masterdb framework * statdb refactor compiles * added TestCreateDoesNotExist testcase * Initial port of statdb to masterdb framework working * refactored statdb proto def to pkg/statdb * removed statdb/proto folder * moved pb.Node to storj.NodeID * CreateEntryIfNotExistsRequest moved pd.Node to storj.NodeID * moved the fields from pb.Node to statdb.UpdateRequest ported TestUpdateExists, TestUpdateUptimeExists, TestUpdateAuditSuccessExists TestUpdateBatchExists
78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
|
|
// See LICENSE for copying information.
|
|
|
|
package discovery
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"github.com/zeebo/errs"
|
|
"go.uber.org/zap"
|
|
monkit "gopkg.in/spacemonkeygo/monkit.v2"
|
|
|
|
"storj.io/storj/pkg/kademlia"
|
|
"storj.io/storj/pkg/overlay"
|
|
"storj.io/storj/pkg/pb"
|
|
"storj.io/storj/pkg/provider"
|
|
"storj.io/storj/pkg/statdb"
|
|
)
|
|
|
|
var (
|
|
mon = monkit.Package()
|
|
// Error represents an overlay error
|
|
Error = errs.Class("discovery error")
|
|
)
|
|
|
|
// CtxKey used for assigning a key to Discovery server
|
|
type CtxKey int
|
|
|
|
const (
|
|
ctxKeyDiscovery CtxKey = iota
|
|
)
|
|
|
|
// Config loads on the configuration values from run flags
|
|
type Config struct {
|
|
RefreshInterval time.Duration `help:"the interval at which the cache refreshes itself in seconds" default:"1s"`
|
|
}
|
|
|
|
// Run runs the Discovery boot up and initialization
|
|
func (c Config) Run(ctx context.Context, server *provider.Provider) (err error) {
|
|
defer mon.Task()(&ctx)(&err)
|
|
|
|
srv := NewServer(zap.L())
|
|
pb.RegisterDiscoveryServer(server.GRPC(), srv)
|
|
|
|
ol := overlay.LoadFromContext(ctx)
|
|
kad := kademlia.LoadFromContext(ctx)
|
|
stat, ok := ctx.Value("masterdb").(interface {
|
|
StatDB() statdb.DB
|
|
})
|
|
if !ok {
|
|
return Error.New("unable to get master db instance")
|
|
}
|
|
discovery := NewDiscovery(ol, kad, stat.StatDB())
|
|
|
|
zap.L().Debug("Starting discovery")
|
|
|
|
ticker := time.NewTicker(c.RefreshInterval)
|
|
defer ticker.Stop()
|
|
|
|
go func() {
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
zap.L().Debug("Kicking off refresh")
|
|
err := discovery.Refresh(ctx)
|
|
if err != nil {
|
|
zap.L().Error("Error with cache refresh: ", zap.Error(err))
|
|
}
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
|
|
return server.Run(context.WithValue(ctx, ctxKeyDiscovery, discovery))
|
|
}
|