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An instance is already running a parachain collator node and is producing block.

Is collating: yes
[Relaychain] 🏷  Local node identity is: 12D3KooWLhkaoFSGV2JfXea1BGTEAv2R5PE4v2b1nHZMo1ZGtXDG
[Relaychain] 📦 Highest known block at #2080175
[Relaychain] Unable to bind RPC server to 127.0.0.1:9934. Trying random port.
[Relaychain] Listening for new connections on 127.0.0.1:8787.
[Parachain] 🏷  Local node identity is: 12D3KooWKgc4sx9atvXWksbsVtmHTS8Km48zXVJ1eeMgU1Keuxxx
[Parachain] 📦 Highest known block at #106120
[Parachain] Unable to bind RPC server to 0.0.0.0:9933. Trying random port.
[Parachain] Listening for new connections on 0.0.0.0:8788.
[Relaychain] ✨ Imported #2080176 (0x4198…2361)
[Relaychain] ✨ Imported #2080177 (0x57e4…cbcd)
[Parachain] Starting collation. relay_parent=0x4198af66d84a05fe8d1d27cf8f7df30c694a10033187c104de80df2a491c2361 at=0x8eca06571a2dbef7c6b5c4a7753db8f6d25e62a52304e4163e218b22ebf9597a
Accepted a new tcp connection from 172.31.1.116:36660.
[Relaychain] 🔍 Discovered new external address for our node: /ip4/3.xx.xx.53/tcp/7676/ws/p2p/12D3KooWLhkaoFSGV2JfXea1BGTEAv2R5PE4v2b1nHZMo1ZGtxxx
[Parachain] Starting collation. relay_parent=0x57e43d64681b435fe6747815882cec49614ba1016d3d5ddcd3bad72efd74cbcd at=0x8eca06571a2dbef7c6b5c4a7753db8f6d25e62a52304e4163e218b22ebf9597a

While starting another chain, I used the following as bootnode

/ip4/3.xx.xx.53/tcp/7677/ws/p2p/12D3KooWKgc4sx9atvXWksbsVtmHTS8Km48zXVJ1eeMgU1Keuxxx

Started another node with --bootnode $BOOTNODE but this is the part of log which shows only relay chain is connected to peers but not parachain

[Relaychain] ✨ Imported #2080239 (0x0e33…c7cd)
[Relaychain] 💤 Idle (13 peers), best: #2080239 (0x0e33…c7cd), finalized #2080236 (0xbcd8…bcd4), ⬇ 27.0kiB/s ⬆ 85.8kiB/s
[Parachain] 💤 Idle (0 peers), best: #0 (0x0de0…a7c2), finalized #0 (0x0de0…a7c2), ⬇ 0 ⬆ 0
[Relaychain] ✨ Imported #2080240 (0x7a79…eebf)
[Relaychain] 💤 Idle (13 peers), best: #2080240 (0x7a79…eebf), finalized #2080236 (0xbcd8…bcd4), ⬇ 12.2kiB/s ⬆ 8.3kiB/s
[Parachain] 💤 Idle (0 peers), best: #0 (0x0de0…a7c2), finalized #0 (0x0de0…a7c2), ⬇ 0 ⬆ 0
[Relaychain] 💤 Idle (13 peers), best: #2080240 (0x7a79…eebf), finalized #2080237 (0xb4e2…fa9a), ⬇ 17.8kiB/s ⬆ 53.9kiB/s
[Relaychain] ✨ Imported #2080241 (0xc61c…72eb)
[Parachain] 💤 Idle (0 peers), best: #0 (0x0de0…a7c2), finalized #0 (0x0de0…a7c2), ⬇ 0 ⬆ 0
[Relaychain] 💤 Idle (13 peers), best: #2080241 (0xc61c…72eb), finalized #2080237 (0xb4e2…fa9a), ⬇ 8.1kiB/s ⬆ 12.4kiB/s
[Relaychain] ✨ Imported #2080242 (0x01d7…88a5)

While relay chain's block are being synced but parachain block is not imported and always stays at genesis block.

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  • Is the ip address really from your machine where the node is running? And are you sure that the port is right? Do you have the port open in your firewall?
    – bkchr
    Sep 27, 2022 at 14:14
  • Yes the ip address is from the machine. Yes port is also right. Not sure about firewall tho. But the thing is for relay chain it shows ` [Relaychain] 🔍 Discovered new external address for our node: /ip4/3.xx.xx.53/tcp/7676/ws/p2p/12D3KooWLhkaoFSGV2JfXea1BGTEAv2R5PE4v2b1nHZMo1ZGtxxx ` And but for parachain it shows nothing like this Sep 28, 2022 at 1:21
  • @SudipGhimire hi! Have you found any solution for this? I am facing similar issue after upgrading my code base to polkadot-v0.9.29
    – llvm_ninja
    Nov 9, 2022 at 9:30
  • Same here for upgrading the codebase to 0.9.26
    – Chralt
    Nov 11, 2022 at 9:38
  • Please open an issue on Github w/ all the info / logs you have. Thank you! There's one github.com/paritytech/substrate/issues/12704 which I'm investigating right now.
    – melekes
    Jan 18, 2023 at 7:00

1 Answer 1

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You need to add keys in the parachain.If you are making private network , then you need to add aura or babe keys(any one of them present in your code) in the customSpec and insert them in the rpc calls of the explorer in the parachain.

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