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p2p: change default to use new stack (#6862)

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This is just a configuration change to default to using the new stack
unless explicitly disabled (e.g. `UseLegacy`) this renames the
configuration value and makes the configuration logic more clear.

The legacy option is good to retain as a fallback if the new stack has
issues operationally, but we should make sure that most of the time
we're using the new stack.
This commit is contained in:
Sam Kleinman
2021-08-25 17:33:38 +00:00
committed by GitHub
parent a0a5d45cb1
commit 6e921f6644
9 changed files with 92 additions and 83 deletions
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node/node.go
+41 -33
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@@ -319,12 +319,12 @@ func makeNode(config *cfg.Config,
stateSyncReactorShim = p2p.NewReactorShim(logger.With("module", "statesync"), "StateSyncShim", statesync.ChannelShims)
if config.P2P.DisableLegacy {
channels = makeChannelsFromShims(router, statesync.ChannelShims)
peerUpdates = peerManager.Subscribe()
} else {
if config.P2P.UseLegacy {
channels = getChannelsFromShim(stateSyncReactorShim)
peerUpdates = stateSyncReactorShim.PeerUpdates
} else {
channels = makeChannelsFromShims(router, statesync.ChannelShims)
peerUpdates = peerManager.Subscribe()
}
stateSyncReactor = statesync.NewReactor(
@@ -373,13 +373,7 @@ func makeNode(config *cfg.Config,
pexCh := pex.ChannelDescriptor()
transport.AddChannelDescriptors([]*p2p.ChannelDescriptor{&pexCh})
if config.P2P.DisableLegacy {
addrBook = nil
pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
if err != nil {
return nil, err
}
} else {
if config.P2P.UseLegacy {
// setup Transport and Switch
sw = createSwitch(
config, transport, p2pMetrics, mpReactorShim, bcReactorForSwitch,
@@ -402,6 +396,12 @@ func makeNode(config *cfg.Config,
}
pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
} else {
addrBook = nil
pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
if err != nil {
return nil, err
}
}
if config.RPC.PprofListenAddress != "" {
@@ -461,6 +461,17 @@ func makeNode(config *cfg.Config,
},
}
// this is a terrible, because typed nil interfaces are not ==
// nil, so this is just cleanup to avoid having a non-nil
// value in the RPC environment that has the semantic
// properties of nil.
if sw == nil {
node.rpcEnv.P2PPeers = nil
} else if peerManager == nil {
node.rpcEnv.PeerManager = nil
}
// end hack
node.rpcEnv.P2PTransport = node
node.BaseService = *service.NewBaseService(logger, "Node", node)
@@ -519,12 +530,8 @@ func makeSeedNode(config *cfg.Config,
// p2p stack is removed.
pexCh := pex.ChannelDescriptor()
transport.AddChannelDescriptors([]*p2p.ChannelDescriptor{&pexCh})
if config.P2P.DisableLegacy {
pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
if err != nil {
return nil, err
}
} else {
if config.P2P.UseLegacy {
sw = createSwitch(
config, transport, p2pMetrics, nil, nil,
nil, nil, nil, nil, nodeInfo, nodeKey, p2pLogger,
@@ -546,6 +553,11 @@ func makeSeedNode(config *cfg.Config,
}
pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
} else {
pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
if err != nil {
return nil, err
}
}
if config.RPC.PprofListenAddress != "" {
@@ -608,18 +620,16 @@ func (n *nodeImpl) OnStart() error {
}
n.isListening = true
n.Logger.Info("p2p service", "legacy_enabled", !n.config.P2P.DisableLegacy)
n.Logger.Info("p2p service", "legacy_enabled", n.config.P2P.UseLegacy)
if n.config.P2P.DisableLegacy {
if err = n.router.Start(); err != nil {
return err
}
} else {
if n.config.P2P.UseLegacy {
// Add private IDs to addrbook to block those peers being added
n.addrBook.AddPrivateIDs(strings.SplitAndTrimEmpty(n.config.P2P.PrivatePeerIDs, ",", " "))
if err = n.sw.Start(); err != nil {
return err
}
} else if err = n.router.Start(); err != nil {
return err
}
if n.config.Mode != cfg.ModeSeed {
@@ -650,16 +660,14 @@ func (n *nodeImpl) OnStart() error {
}
}
if n.config.P2P.DisableLegacy {
if err := n.pexReactor.Start(); err != nil {
return err
}
} else {
if n.config.P2P.UseLegacy {
// Always connect to persistent peers
err = n.sw.DialPeersAsync(strings.SplitAndTrimEmpty(n.config.P2P.PersistentPeers, ",", " "))
if err != nil {
return fmt.Errorf("could not dial peers from persistent-peers field: %w", err)
}
} else if err := n.pexReactor.Start(); err != nil {
return err
}
// Run state sync
@@ -738,14 +746,14 @@ func (n *nodeImpl) OnStop() {
n.Logger.Error("failed to stop the PEX v2 reactor", "err", err)
}
if n.config.P2P.DisableLegacy {
if err := n.router.Stop(); err != nil {
n.Logger.Error("failed to stop router", "err", err)
}
} else {
if n.config.P2P.UseLegacy {
if err := n.sw.Stop(); err != nil {
n.Logger.Error("failed to stop switch", "err", err)
}
} else {
if err := n.router.Stop(); err != nil {
n.Logger.Error("failed to stop router", "err", err)
}
}
if err := n.transport.Close(); err != nil {