Node restart breaks p2p connectivity

[k1rill-fedoseev]

🐞 Bug Report

Description

When you restart the node with --p2p-priv-key option pointing to the same private key, it can no longer connect to the existing nodes in the network due to some handshake problems.

Has this worked before in a previous version?

No, AFAIK

🔬 Minimal Reproduction

Please let us know how we can reproduce this issue. Include the exact method you used to run Prysm along with any flags used in your beacon chain and/or validator. Make sure you don't upload any confidential files or private keys. -->

• Setup private chain with N nodes with fixed private keys (via --p2p-priv-key) and 1 bootnode.
• Setup and run necessary validators to test that chain is operating.
• Stop one of the beacon nodes and restart it after some time passes.
• Observe debug and trace level logs.

🔥 Error

Node cannot sync with the rest of the chain in Waiting for enough suitable peers before syncing state with zero suitable peers.

021-08-09T07:30:58.545Z DEBUG swarm2 [limiter] freeing FD token; waiting: 0; consuming: 1 2021-08-09T07:30:58.545Z DEBUG swarm2 [limiter] freeing peer token; peer 16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT; addr: /ip4/134.122.127.194/tcp/13000; active for peer: 1; waiting on peer limit: 0 2021-08-09T07:30:58.545Z DEBUG swarm2 [limiter] clearing all peer dials: 16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT 2021-08-09T07:30:58.545Z DEBUG swarm2 [16Uiu2HAmBKp1bVEpuePbM9JizW2r7fUGrP4qamTreXrRps4HvVa2] opening stream to peer [16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT] 2021-08-09T07:30:58.545Z DEBUG swarm2 [16Uiu2HAmBKp1bVEpuePbM9JizW2r7fUGrP4qamTreXrRps4HvVa2] swarm dialing peer [16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT] 2021-08-09T07:30:58.545Z DEBUG swarm2 [16Uiu2HAmBKp1bVEpuePbM9JizW2r7fUGrP4qamTreXrRps4HvVa2] opening stream to peer [16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT] 2021-08-09T07:30:58.545Z DEBUG swarm2 [16Uiu2HAmBKp1bVEpuePbM9JizW2r7fUGrP4qamTreXrRps4HvVa2] swarm dialing peer [16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT] 2021-08-09T07:30:58.545Z DEBUG net/identify error opening identify stream {"error": "read tcp4 172.18.0.2:13000->134.122.127.194:13000: read: connection reset by peer"} 2021-08-09T07:30:58.545Z DEBUG net/identify error opening identify stream {"error": "read tcp4 172.18.0.2:13000->134.122.127.194:13000: read: connection reset by peer"} 2021-08-09T07:30:58.545Z DEBUG basichost host 16Uiu2HAmBKp1bVEpuePbM9JizW2r7fUGrP4qamTreXrRps4HvVa2 finished dialing 16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT time="2021-08-09 07:30:58" level=trace msg="Handshake failed" error="max dial attempts exceeded" prefix=p2p 2021-08-09T07:30:58.545Z DEBUG pubsub opening new stream to peer: max dial attempts exceeded16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT 2021-08-09T07:30:58.545Z DEBUG pubsub PEERDOWN: Remove disconnected peer 16Uiu2HAm68etebwYHpMZTTiTxEa7zehC9jQkVxxDMXo1LGkMaEpT

🌍 Your Environment

Operating System:

Ubuntu 18.04

What version of Prysm are you running? (Which release)

v1.4.3

Anything else relevant (validator index / public key)?

[nisdas]

Hey thanks for opening the issue @k1rill-fedoseev , do you mind stating which flags you are running the beacon nodes with ?

[k1rill-fedoseev]

Sure, I was using docker-compose for setting up the network, here is the snippet from my compose file:

version: '3.8'
services:
  node:
    image: gcr.io/prysmaticlabs/prysm/beacon-chain:v1.4.3
    command: |
      --accept-terms-of-use
      --contract-deployment-block 9068790
      --http-web3provider https://rinkeby.infura.io/v3/$PROJECT_ID
      --bootstrap-node $BOOTNODE
      --config-file /sbc_test/config/config.yml
      --chain-config-file /sbc_test/config/config.yml
      --rpc-host 0.0.0.0
      --p2p-priv-key /sbc_test/config/nodekey.txt
      --p2p-local-ip 0.0.0.0
      --p2p-host-ip $IP_NODE
    ports:
      - '12000:12000/udp'
      - '13000:13000'
      - '4000:4000'

All nodes had different IPs and nodekey files.

[wangyifan]

Hi, I will take a look at this as my first issue of prysm. Could someone assign the ticket to me?

[prestonvanloon]

Thanks @wangyifan. This is quite an old issue so it may not be relevant. If you could attempt the reproduction steps and find that it is no longer an issue, please add that information here and we can close the ticket. Thanks

[wangyifan]

Sure, I will post whatever I found.

[prestonvanloon]

@wangyifan did you make any progress on this?