DHT peerInfoMapper cause crashes

[winprn]

• Version:

"@libp2p/autonat": "^2.0.6",
"@libp2p/bootstrap": "^11.0.6",
"@libp2p/circuit-relay-v2": "^2.1.2",
"@libp2p/crypto": "^5.0.5",
"@libp2p/dcutr": "^2.0.6",
"@libp2p/devtools-metrics": "^1.1.5",
"@libp2p/identify": "^3.0.6",
"@libp2p/kad-dht": "14.0.0",
"@libp2p/mdns": "^11.0.8",
"@libp2p/peer-id": "^5.0.4",
"@libp2p/pubsub-peer-discovery": "^11.0.0",
"@libp2p/webrtc": "^5.0.9",
"@libp2p/websockets": "^9.0.7",
"@libp2p/webtransport": "^5.0.9",

• Platform:
• Chrome latest
• 6.1.0-26-amd64 SMP PREEMPT_DYNAMIC Debian 6.1.112-1 (2024-09-30) x86_64 GNU/Linux

• Subsystem:
• KadDHT

Severity:

Description:

In my setup, I have one public bootstrap node and other browser nodes connect to it.
When they connects, sometimes the peerMapper got call continuously. And if that node is disconnected, the whole wss is down, no further node can connect to the bootstrap:

This is my DHT config:

dht: kadDHT({
  protocol: "/topology/dht/1.0.0",
  kBucketSize: this._config?.bootstrap ? 40 : 20,
  clientMode: false,
  peerInfoMapper: (peerInfo) => {
	  log.info("::start::peerInfoMapper", peerInfo);
	  return peerInfo;
  },
  allowQueryWithZeroPeers: false,
}),

Steps to reproduce the error:

const _node_services = {
	autonat: autoNAT(),
	dcutr: dcutr(),
	identify: identify(),
	pubsub: gossipsub(),
	dht: kadDHT({
		protocol: "/topology/dht/1.0.0",
		kBucketSize: this._config?.bootstrap ? 40 : 20,
		clientMode: false,
		peerInfoMapper: (peerInfo) => {
			log.info("::start::peerInfoMapper", peerInfo);
			return peerInfo;
		},
		allowQueryWithZeroPeers: false,
	}),
};

const _bootstrap_node_services = {
	..._node_services,
	relay: circuitRelayServer(),
};

this._node = await createLibp2p({
	privateKey,
	addresses: {
		listen: this._config?.addresses ? this._config.addresses : ["/webrtc"],
	},
	connectionEncrypters: [noise()],
	connectionGater: {
		denyDialMultiaddr: () => {
			return false;
		},
	},
	peerDiscovery: [], // put the bootstrap address here
	services: this._config?.bootstrap
		? _bootstrap_node_services
		: _node_services,
	streamMuxers: [yamux()],
	transports: [
		circuitRelayTransport({
			discoverRelays: 2,
			reservationConcurrency: 1,
		}),
		webRTC(),
		webRTCDirect(),
		webSockets({
			filter: filters.all,
		}),
		webTransport(),
	],
});

Please note that this error is not consistent. Sometimes when I refresh the browser everything works fine.

[achingbrain]

It's normal for the peer mapper to be called multiple times, as it will be applied to DHT peers as they are encountered.

I can't see the crash you are talking about - is there a stack trace available? Are you able to share a full example that I can run?

[github-actions]

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