lotus/node/modules/lp2p/rcmgr.go
vyzo d4d5ce3021 only enable rcmgr by default in full nodes
opt-in with envvar for other nodes, as there are still some issues
with markets related protocols
2022-06-13 12:16:20 -04:00

240 lines
7.4 KiB
Go

package lp2p
import (
"context"
"errors"
"fmt"
"math/bits"
"os"
"path/filepath"
"go.uber.org/fx"
"github.com/libp2p/go-libp2p"
"github.com/libp2p/go-libp2p-core/network"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/libp2p/go-libp2p-core/protocol"
rcmgr "github.com/libp2p/go-libp2p-resource-manager"
logging "github.com/ipfs/go-log/v2"
"github.com/filecoin-project/lotus/metrics"
"github.com/filecoin-project/lotus/node/repo"
"go.opencensus.io/stats"
"go.opencensus.io/tag"
)
func ResourceManager(connMgrHi uint) func(lc fx.Lifecycle, repo repo.LockedRepo) (network.ResourceManager, error) {
return func(lc fx.Lifecycle, repo repo.LockedRepo) (network.ResourceManager, error) {
isFullNode := repo.RepoType().Type() == "FullNode"
envvar := os.Getenv("LOTUS_RCMGR")
if (isFullNode && envvar == "0") || // only set NullResourceManager if envvar is explicitly "0"
(!isFullNode && envvar != "1") { // set NullResourceManager *unless* envvar is explicitly "1"
log.Info("libp2p resource manager is disabled")
return network.NullResourceManager, nil
}
log.Info("libp2p resource manager is enabled")
// enable debug logs for rcmgr
logging.SetLogLevel("rcmgr", "debug")
// Adjust default limits
// - give it more memory, up to 4G, min of 1G
// - if maxconns are too high, adjust Conn/FD/Stream limits
defaultLimits := rcmgr.DefaultLimits.WithSystemMemory(.125, 1<<30, 4<<30)
maxconns := int(connMgrHi)
if 2*maxconns > defaultLimits.SystemBaseLimit.ConnsInbound {
// adjust conns to 2x to allow for two conns per peer (TCP+QUIC)
defaultLimits.SystemBaseLimit.ConnsInbound = logScale(2 * maxconns)
defaultLimits.SystemBaseLimit.ConnsOutbound = logScale(2 * maxconns)
defaultLimits.SystemBaseLimit.Conns = logScale(4 * maxconns)
defaultLimits.SystemBaseLimit.StreamsInbound = logScale(16 * maxconns)
defaultLimits.SystemBaseLimit.StreamsOutbound = logScale(64 * maxconns)
defaultLimits.SystemBaseLimit.Streams = logScale(64 * maxconns)
if 2*maxconns > defaultLimits.SystemBaseLimit.FD {
defaultLimits.SystemBaseLimit.FD = logScale(2 * maxconns)
}
defaultLimits.ServiceBaseLimit.StreamsInbound = logScale(8 * maxconns)
defaultLimits.ServiceBaseLimit.StreamsOutbound = logScale(32 * maxconns)
defaultLimits.ServiceBaseLimit.Streams = logScale(32 * maxconns)
defaultLimits.ProtocolBaseLimit.StreamsInbound = logScale(8 * maxconns)
defaultLimits.ProtocolBaseLimit.StreamsOutbound = logScale(32 * maxconns)
defaultLimits.ProtocolBaseLimit.Streams = logScale(32 * maxconns)
log.Info("adjusted default resource manager limits")
}
// initialize
var limiter *rcmgr.BasicLimiter
var opts []rcmgr.Option
repoPath := repo.Path()
// create limiter -- parse $repo/limits.json if exists
limitsFile := filepath.Join(repoPath, "limits.json")
limitsIn, err := os.Open(limitsFile)
switch {
case err == nil:
defer limitsIn.Close() //nolint:errcheck
limiter, err = rcmgr.NewLimiterFromJSON(limitsIn, defaultLimits)
if err != nil {
return nil, fmt.Errorf("error parsing limit file: %w", err)
}
case errors.Is(err, os.ErrNotExist):
limiter = rcmgr.NewStaticLimiter(defaultLimits)
default:
return nil, err
}
// TODO: also set appropriate default limits for lotus protocols
libp2p.SetDefaultServiceLimits(limiter)
opts = append(opts, rcmgr.WithMetrics(rcmgrMetrics{}))
if os.Getenv("LOTUS_DEBUG_RCMGR") != "" {
debugPath := filepath.Join(repoPath, "debug")
if err := os.MkdirAll(debugPath, 0755); err != nil {
return nil, fmt.Errorf("error creating debug directory: %w", err)
}
traceFile := filepath.Join(debugPath, "rcmgr.json.gz")
opts = append(opts, rcmgr.WithTrace(traceFile))
}
mgr, err := rcmgr.NewResourceManager(limiter, opts...)
if err != nil {
return nil, fmt.Errorf("error creating resource manager: %w", err)
}
lc.Append(fx.Hook{
OnStop: func(_ context.Context) error {
return mgr.Close()
}})
return mgr, nil
}
}
func logScale(val int) int {
bitlen := bits.Len(uint(val))
return 1 << bitlen
}
func ResourceManagerOption(mgr network.ResourceManager) Libp2pOpts {
return Libp2pOpts{
Opts: []libp2p.Option{libp2p.ResourceManager(mgr)},
}
}
type rcmgrMetrics struct{}
func (r rcmgrMetrics) AllowConn(dir network.Direction, usefd bool) {
ctx := context.Background()
if dir == network.DirInbound {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "inbound"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "outbound"))
}
if usefd {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.UseFD, "true"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.UseFD, "false"))
}
stats.Record(ctx, metrics.RcmgrAllowConn.M(1))
}
func (r rcmgrMetrics) BlockConn(dir network.Direction, usefd bool) {
ctx := context.Background()
if dir == network.DirInbound {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "inbound"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "outbound"))
}
if usefd {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.UseFD, "true"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.UseFD, "false"))
}
stats.Record(ctx, metrics.RcmgrBlockConn.M(1))
}
func (r rcmgrMetrics) AllowStream(p peer.ID, dir network.Direction) {
ctx := context.Background()
if dir == network.DirInbound {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "inbound"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "outbound"))
}
stats.Record(ctx, metrics.RcmgrAllowStream.M(1))
}
func (r rcmgrMetrics) BlockStream(p peer.ID, dir network.Direction) {
ctx := context.Background()
if dir == network.DirInbound {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "inbound"))
} else {
ctx, _ = tag.New(ctx, tag.Upsert(metrics.Direction, "outbound"))
}
stats.Record(ctx, metrics.RcmgrBlockStream.M(1))
}
func (r rcmgrMetrics) AllowPeer(p peer.ID) {
ctx := context.Background()
stats.Record(ctx, metrics.RcmgrAllowPeer.M(1))
}
func (r rcmgrMetrics) BlockPeer(p peer.ID) {
ctx := context.Background()
stats.Record(ctx, metrics.RcmgrBlockPeer.M(1))
}
func (r rcmgrMetrics) AllowProtocol(proto protocol.ID) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ProtocolID, string(proto)))
stats.Record(ctx, metrics.RcmgrAllowProto.M(1))
}
func (r rcmgrMetrics) BlockProtocol(proto protocol.ID) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ProtocolID, string(proto)))
stats.Record(ctx, metrics.RcmgrBlockProto.M(1))
}
func (r rcmgrMetrics) BlockProtocolPeer(proto protocol.ID, p peer.ID) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ProtocolID, string(proto)))
stats.Record(ctx, metrics.RcmgrBlockProtoPeer.M(1))
}
func (r rcmgrMetrics) AllowService(svc string) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ServiceID, svc))
stats.Record(ctx, metrics.RcmgrAllowSvc.M(1))
}
func (r rcmgrMetrics) BlockService(svc string) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ServiceID, svc))
stats.Record(ctx, metrics.RcmgrBlockSvc.M(1))
}
func (r rcmgrMetrics) BlockServicePeer(svc string, p peer.ID) {
ctx := context.Background()
ctx, _ = tag.New(ctx, tag.Upsert(metrics.ServiceID, svc))
stats.Record(ctx, metrics.RcmgrBlockSvcPeer.M(1))
}
func (r rcmgrMetrics) AllowMemory(size int) {
stats.Record(context.Background(), metrics.RcmgrAllowMem.M(1))
}
func (r rcmgrMetrics) BlockMemory(size int) {
stats.Record(context.Background(), metrics.RcmgrBlockMem.M(1))
}