IPFS daemon is throwing mdns service startup error while starting

[rupesh-pithva]

Checklist

• [X] This is a bug report, not a question. Ask questions on discuss.ipfs.io.
• [X] I have searched on the issue tracker for my bug.
• [X] I am running the latest kubo version or have an issue updating.

Installation method

ipfs-update or dist.ipfs.tech

Version

v0.16.0

Config

{
  "API": {
    "HTTPHeaders": {}
  },
  "Addresses": {
    "API": "/ip4/0.0.0.0/tcp/5001",
    "Announce": [
      "/ip4/x.x.x.x/tcp/4001"
    ],
    "Gateway": "/ip4/127.0.0.1/tcp/8080",
    "NoAnnounce": [],
    "Swarm": [
      "/ip4/0.0.0.0/tcp/4001",
      "/ip6/::/tcp/4001",
      "/ip4/0.0.0.0/udp/4001/quic",
      "/ip6/::/udp/4001/quic"
    ]
  },
  "AutoNAT": {},
  "Bootstrap": [],
  "DNS": {
    "Resolvers": {}
  },
  "Datastore": {
    "BloomFilterSize": 0,
    "GCPeriod": "1h",
    "HashOnRead": false,
    "Spec": {
      "mounts": [
        {
          "child": {
            "path": "blocks",
            "shardFunc": "/repo/flatfs/shard/v1/next-to-last/2",
            "sync": true,
            "type": "flatfs"
          },
          "mountpoint": "/blocks",
          "prefix": "flatfs.datastore",
          "type": "measure"
        },
        {
          "child": {
            "compression": "none",
            "path": "datastore",
            "type": "levelds"
          },
          "mountpoint": "/",
          "prefix": "leveldb.datastore",
          "type": "measure"
        }
      ],
      "type": "mount"
    },
    "StorageGCWatermark": 90,
    "StorageMax": "1000GB"
  },
  "Discovery": {
    "MDNS": {
      "Enabled": true,
      "Interval": 10
    }
  },
  "Experimental": {
    "AcceleratedDHTClient": false,
    "FilestoreEnabled": false,
    "GraphsyncEnabled": false,
    "Libp2pStreamMounting": false,
    "P2pHttpProxy": false,
    "ShardingEnabled": false,
    "StrategicProviding": false,
    "UrlstoreEnabled": false
  },
  "Gateway": {
    "APICommands": [],
    "HTTPHeaders": {
      "Access-Control-Allow-Headers": [
        "X-Requested-With",
        "Range",
        "User-Agent"
      ],
      "Access-Control-Allow-Methods": [
        "GET"
      ],
      "Access-Control-Allow-Origin": [
        "*"
      ]
    },
    "NoDNSLink": false,
    "NoFetch": false,
    "PathPrefixes": [],
    "PublicGateways": null,
    "RootRedirect": "",
    "Writable": false
  },
  "Identity": {
    "PeerID": "********"
  },
  "Internal": {},
  "Ipns": {
    "RecordLifetime": "",
    "RepublishPeriod": "",
    "ResolveCacheSize": 128
  },
  "Migration": {
    "DownloadSources": [],
    "Keep": ""
  },
  "Mounts": {
    "FuseAllowOther": false,
    "IPFS": "/ipfs",
    "IPNS": "/ipns"
  },
  "Peering": {
    "Peers": null
  },
  "Pinning": {
    "RemoteServices": {}
  },
  "Plugins": {
    "Plugins": null
  },
  "Provider": {
    "Strategy": ""
  },
  "Pubsub": {
    "DisableSigning": false,
    "Router": ""
  },
  "Reprovider": {
    "Interval": "12h",
    "Strategy": "all"
  },
  "Routing": {
    "Type": "dht"
  },
  "Swarm": {
    "AddrFilters": null,
    "ConnMgr": {
      "GracePeriod": "20s",
      "HighWater": 900,
      "LowWater": 600,
      "Type": "basic"
    },
    "DisableBandwidthMetrics": false,
    "DisableNatPortMap": false,
    "EnableAutoRelay": false,
    "EnableRelayHop": false,
    "Transports": {
      "Multiplexers": {},
      "Network": {},
      "Security": {}
    }
  }
}

Description

I am upgrading my IPFS binary from v0.10.0 to v0.16.0 to fix the vulnerabilities identified. After upgrade, during start up, ipfs daemon is thworing below error

2022-11-11T13:08:28.142ZERRORp2pnodelibp2p/discovery.go:44error starting mdns service: no supported interface

The excert from log file

• '[' '!' -d /mnt/ipfsdata/datastore ]
• cp /mnt/config/daemon-config /mnt/ipfsdata/config
• ipfs daemon --migrate Initializing daemon... Kubo version: 0.16.0-38117db Repo version: 12 System version: amd64/linux Golang version: go1.19.1 2022/11/11 13:08:28 failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 2048 kiB, got: 416 kiB). See https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Bu ffer-Size for details. 2022/11/11 13:08:28 [zeroconf] no suitable IPv4 interface: udp4: failed to join any of these interfaces: [] 2022/11/11 13:08:28 [zeroconf] no suitable IPv6 interface: udp6: failed to join any of these interfaces: [] 2022-11-11T13:08:28.142ZERRORp2pnodelibp2p/discovery.go:44error starting mdns service: no supported interface

========================= API server listening on /ip4/0.0.0.0/tcp/5001 WebUI: http://0.0.0.0:5001/webui Gateway (readonly) server listening on /ip4/127.0.0.1/tcp/8080 Daemon is ready

Please suggest if there is any fix for this error.

[Jorropo]

AFAIT the daemon is starting correctly. And you just have multicast disabled on all interfaces so the mdns client can't start.

Please reopen if one of the two sentences above are wrong.

This mean it's just mdns client complaining it can't work because your system doesn't support the required features. You can disable it by changing thoses config fields:

  "Discovery": {
    "MDNS": {
      "Enabled": true,
      "Interval": 10
    }

or using the server profile: ipfs config profile apply server.