Questions tagged [lighthouse]

Questions about the Lighthouse client specifically. Otherwise use the [clients] tag.

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getting beacon node error after upgrading lighthouse client to v3.5.1

getting beacon node below error after upgrading lighthouse client to v3.5.1 from v3.3.0. CRIT Failed to start beacon node reason: Failed to build beacon chain: Error loading finalized ...
Hardik Desai's user avatar
1 vote
1 answer
211 views

Geth reports it is synced when Lighthouse Beacon is not synced

My lighthouse beacon node is still syncing, but if i go to the geth console to check if it is synced I get: eth.syncing false Is this normal behaviour? Or is my setup wrong? [ is there another ...
Will B's user avatar
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1 answer
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How do I expose and beacon chain API securely over HTTP and test my API works?

Ethereum beacon chain nodes (Lighthouse, Prysm, others) provide Beacon Chain API in the port 5052. How does one securely expose this API over Internet?
Mikko Ohtamaa's user avatar
2 votes
1 answer
259 views

GoEthereum and Lighthouse syncing issue: CRIT Failed to update execution head

I am running an Ethereum node using GoEthereum and Lighthouse. For some reason, it has fallen off from the chain tip and does not properly sync anymore. Lighthouse is reporting in its logs: Jan 11 13:...
Mikko Ohtamaa's user avatar
1 vote
0 answers
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How to apply pos for private geth network using Prysm/Lighthouse?

I'm currently running my own private geth network. Can I use lighthouse or prysm with it to apply pos? I tried for example, lighthouse \ --network mydomain.com \ but error... it only has [...
user6894661's user avatar
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How can i sync blockhain of two localnodes?

i'm new to ethereum. I ran two local nodes from the same genesis. One node has a blockchain filled with data, the other is just empty, I wanted to synchronize them for learning purposes. After I added ...
Twep _'s user avatar
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How to reduce blockchain size requirements

In order to manage personal wallets without depending on external apps, I have a 2TB SSD to store the ethereum blockchain. I'm using latest geth (1.10.26) together with lighthouse (3.3.0) as consensus ...
aicastell's user avatar
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1 vote
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Why does my Geth full node stop working when it is out of sync?

I am using geth (with Lighthouse as consensus client) to work on the Göerli testnet Whenever i am trying to use the localhost RPC (127.0.0.1) or the IPC in my dApp, if my node is a few blocks behind ( ...
Muhammad Yasir's user avatar
1 vote
2 answers
1k views

Ethereum Post-Merge Full Node

I am trying to run a full mainnet node on AWS EC2. I received the following warning WARN [09-29|12:33:51.514] Post-merge network, but no beacon client was seen. Please launch one to follow the chain!, ...
Emrah's user avatar
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How to connect ethereum lighthouse testnet to Geth testnet command line?

I downloaded both Geth and lighthouse on my Linux server and I managed to connect both of them together in the mainnet and geth start syncing and downloading blocks ... ect These are the used command ...
galaxymini's user avatar
3 votes
3 answers
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Checkpoint sync source for Ethereum beacon chain node

Ethereum beacon chain nodes like Lighthouse and Prysm offer checkpoint sync to get the node synced faster. How can I get a node that I can pass as --checkpoint-sync-url to lighthouse so that I can ...
Mikko Ohtamaa's user avatar
2 votes
1 answer
1k views

Ethereum beacon chain node (Lighthouse) fails to connect to GoEthereum

Ethereum beacon chain node (e.g. Lighthouse) fails to connect to GoEthereum execution layer node with the error seen in GoEthereum logs: the method engine_exchangeTransitionConfigurationV1 does not ...
Mikko Ohtamaa's user avatar
1 vote
0 answers
491 views

Lighthouse - UPnP not available

I'm running Lighthouse beacon chain on Ubuntu and get UPnP not available on startup. What is this dependent on? Is this some OS configuration? How to turn UPnP on?
Martin Massera's user avatar
1 vote
1 answer
220 views

lighthouse + localhost geth - why "sync can take longer when using remote eth1 nodes"?

I have geth alongside lighthouse on the same computer. I'm running lighthouse with --eth1-endpoints http://localhost:8545. However this appears in my ligthouse logs: sync can take longer when using ...
Martin Massera's user avatar
1 vote
0 answers
21 views

How safe to run Lighthouse without --auto-register vs. the effects of registering more than once?

Running a Lighthouse validator presents a message to strongly consider running --auto-register the first time. The documentation also states: The --auto-register flag registers your signing key ...
eth's user avatar
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3 votes
1 answer
74 views

What caused the forks in the Schlesi testnet?

The Schlesi testnet was the first multiclient testnet for ETH2 clients. Lighthouse, Prysm, Teku were in consensus before it forked. What were the causes of the forks? Is there a technical post ...
eth's user avatar
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2 votes
1 answer
109 views

What is the tech stack behind the Lighthouse client?

What are Lighthouse's major components? What databases did it consider and decide on? Are there elements in its architecture that are particularly differentiated from how other beacon chain clients ...
eth's user avatar
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