All Questions
Tagged with light-client or light-clients
162 questions
1
vote
0
answers
12
views
How to find data about light servers
I'm doing some research around light clients and light servers and need to find answers to these questions:
How many light clients can a full node reasonably serve without impacting performance
What %...
4
votes
3
answers
491
views
Do Light-clients still work after merge?
After the merge, my light client suddenly stopped working. Is there a way to fix this/ do I need to run a consensus node?
Thank you!
- 79
0
votes
0
answers
11
views
Secure Connection between light client and Smart Contract
I would like to know the best(most secured) ways to securely interact between light client and smart contracts, Any tips and tricks are mostly welcome.
Thanks for the time.
- 3
1
vote
0
answers
33
views
Getting `Fatal: Option "nodekey": invalid character '"' at end of key file` when trying `geth --nodekey /path/file`
I generated a key-pair with geth account new --keystore
and now I'm trying to attach it to a light node with geth --nodekey,
but I'm getting the error Fatal: Option "nodekey": invalid ...
- 111
0
votes
0
answers
10
views
Is there an implementation of the Altair light client?
its a bit unclear to me whether or not there exists an implementation of the Altair light client. i see the specs here but couldn't find the implementation. or is Altair meant to be implemented by the ...
- 1
60
votes
1
answer
63k
views
What is Geth's "light" sync, and why is it so fast?
This question is in a similar vein to the past questions about geth --fast and parity --warp.
There was a recent question where the OP wanted to do as little syncing as possible, and one of the ...
- 38k
3
votes
0
answers
106
views
eth_getProof for event logs?
Problem Brief
Hi, I've been looking for ways to prove to a light client that a log did get emitted on ethereum. I stumbled upon the eth_getProof RPC, but it's for getting the merkle proof for account ...
- 31
1
vote
1
answer
2k
views
What is the best way to create Binance Smart Chain (BSC) transactions via geth without a full node?
I currently run geth to create and query the ethereum blockchain for transactions in light mode. I don't have a eth full node running. I tried running the same similar setup for Binance Smart Chain in ...
- 4,810
5
votes
1
answer
6k
views
Geth light keeps showing "Looking for peers"
My Geth server in light mode was running without any issue up to yesterday. But after that, I only receive these messages continuously!
INFO [04-19|12:59:22.181] Looking for peers ...
- 327
4
votes
1
answer
5k
views
Running BSC node in light mode?
Is it possible to run BSC node geth -—syncmode light mode?
This is what i get following steps https://github.com/binance-chain/bsc only using -—syncmode light
t=2021-05-08T11:56:12+0300 lvl=info msg=&...
- 41
1
vote
0
answers
229
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On Ethereum private chain, why my light node cannot connect to the bootnode?
I'm new to ethereum and geth client, and I met some trouble nowadays. I do need someone's help.
I try to setup an ethereum private chain, which includes full nodes, light nodes, and bootnodes. The aim ...
- 11
1
vote
2
answers
5k
views
Create an Ethereum wallet with React Native for single token
Many of you might think that this question has already been answered
but I don't think that there is a clear answer on the internet for the
current Ethereum, Web3.js and React Native versions (for ...
23
votes
2
answers
4k
views
Difference between a pruned and unpruned blockchain
At the Berlin Blockchain Meetup, Gustav Simonsson teased the Homestead release coming soon (tm) and we were discussing blockchain bloat and the current size of the Ethereum blockchain.
We discussed ...
- 33k
0
votes
2
answers
377
views
How can I parse internal transactions with light node?
is that possible to receive all transactions from new block with light node and parse all and even internal transactions with the help of its api?
1
vote
1
answer
522
views
Run geth in light mode on Rinkeby and Raspberry
I am trying to run geth --light --cache 64 --rinkeby but it stucks on
INFO [02-12|08:58:16] IPC endpoint opened: /home/pi/.ethereum/rinkeby/geth.ipc.
I am using geth on a Raspberry.
The full output ...
- 219
1
vote
0
answers
71
views
After the Merge with proof-of-stake, how a lightclient verify the block header?
In my understanding, date back to proof-of-work, the block header is self-verifiable because of the difficulty, nonce and block hash value. But after the Merge, the block is attested by several ...
- 11
1
vote
2
answers
1k
views
Geth Private Network Unable to Add Light Node
I have a private network setup with geth and a few machines (2 full nodes for mining and a light node). The three devices have the following IPs:
MINER1 - 10.42.0.40
MINER2 - 10.42.0.250
LIGHT-NODE - ...
- 31
1
vote
1
answer
681
views
Locally submitted transactions to the light node gets lost if the node is restarted
What happens to the transactions submitted to light node in the following scenarios?
1) Light node does not have a network connection with its peers.I could find that the transactions are submitted ...
- 21
25
votes
2
answers
1k
views
E/Go: fatal error: thread exhaustion
I am experimenting with the geth-android library with light-client and in-process node from @karalabe. I could successfully sync with the testnet node from @phonikg, unfortunately this one is down now....
- 1,193
0
votes
1
answer
544
views
How to setup parity light client?(warp sync is slow)
I have a full node synced using --warp but since I have a hdd, the final bit of the sync never catches up(due to the high transaction IO). How do I switch to a light clent on parity if I already have ...
- 1,960
1
vote
1
answer
411
views
Will Ethereum 2.0 support light-clients?
I am new to Ethereum, and I am trying to understand how different eth2 will be from eth1 in terms of connecting to the network and performing tasks. For example, in eth1 we don't need to be miners to ...
- 11
16
votes
6
answers
16k
views
How can dapps work on smartphones?
How can dapps on mobile web browsers interact with web3.js?
Is there any tool like Metamask or Mist on the roadmap for mobile?
15
votes
4
answers
4k
views
How to experiment with Ethereum without downloading the entire blockchain?
I want to experiment with Ethereum without having to download the entire blockchain. My ISP limits my bandwidth to 50GB and downloading the ETH chain would consume a lot of that, not to mention the ...
- 356
20
votes
4
answers
7k
views
How do Ethereum clients generate unique addresses?
How do Ethereum clients, like Ethereum Wallet or Eth-Lightwallet, generate unique addresses that haven't been used before, and what is the likelihood that these addresses have been used?
- 1,665
1
vote
0
answers
87
views
Is there any standalone desktop wallet that supports WalletConnect?
I want some desktop or command line wallet to open my old keystore wallet, connect to some online dapp, and be able to manually inspect and approve the transactions generated by the dapp from the ...
- 123
2
votes
1
answer
818
views
Port requirements for a Light-Node?
For a light client (geth --light or parity --light) running the light client protocol what are the port requirements?
Incoming: Does a light client expose a port where he accepts incoming ...
- 21
16
votes
2
answers
12k
views
What is the parity light pruning mode?
Parity offers four different pruning methods: archive, basic, fast and light:
--pruning METHOD Configure pruning of the state/storage trie. METHOD
may be one of ...
- 33k
2
votes
2
answers
1k
views
Verifying ethash output Ethereum block hash
On the Ethash wiki, it mentions that a 16MB verification cache can be used to verify block hashes without generating the full DAG, but there are no further details on how this is done.
What's the ...
- 861
1
vote
0
answers
130
views
How does ethernodes.org discover nodes?
I am running my light-client at the moment and wanted to know, how does ethernodes.org discover nodes?
And is it possible to get discovered using a light node?
Thanks in advance!
- 79
1
vote
0
answers
110
views
How to run Ethereum light node by using Geth
after the ethereum merge (POS) how to run ethereum mainnet light node by using Geth, when I try to run light node I'm getting the error "Looking for peers"
1
vote
1
answer
524
views
Using the Parity or Geth light client, how can I monitor an address for transactions?
I'd like to use Parity or Geth, in light client mode, to monitor an address for transactions. Essentially, I should be able to check each block for transactions involving a certain address.
In the ...
4
votes
1
answer
511
views
Can't get geth to connect to own fullnode via --bootnodes param
I'm running a full node with LES protocol enabled which I want my light clients to connect to and sync from.
I tried to do this by starting the light client with geth --light --bootnodes <my_enode&...
- 213
4
votes
1
answer
503
views
Why does geth -light start importing block headers from 3297471
I've been using geth to download the blockchain (on full) and one of the requirements for my research involves the use of light clients. I used 2 computers to download the blockchain on the -light ...
- 43
1
vote
0
answers
358
views
How do I find peers for a ropsten "light" node?
I'm using geth to spin a simple light node on ropsten. I'm running
geth --ropsten --syncmode "light" console
And it gets stuck after
INFO [06-18|11:05:26.682] New local node record ...
- 111
11
votes
2
answers
8k
views
How to run a "server" for light clients?
When running geth --light the go-ethereum client somehow has to connect to full nodes to interact with.
Could geth connect to any full node on the network or does this require a special endpoint? How ...
- 33k
1
vote
1
answer
59
views
How to fork form Geth light client to Ganache CLI?
I am currently forking the Ethereum mainnet into Ganache CLI using Infura (command: ganache --fork https://mainnet.infura.io/v3/my_project_id) However, I want to use my own Geth light client with ...
- 171
3
votes
1
answer
6k
views
How to create a website that runs on blockchain
A premise, I have confused ideas about smart contract client.
I would like to create a website, that runs a classic browser, with a javascript file imported that can execute functions on the ...
- 266
0
votes
1
answer
132
views
Accessing the network throught light sync node
I'm trying to create an application that will track balance changes at specified addresses. I want to catch new block validation events and see if there are transactions associated with my addresses. ...
1
vote
0
answers
43
views
How can I add a peer to a light client?
I am hosting my own Geth Full-node which is setup to server light-clients and it has a static ip.
When I start my own light-client, can I specify it to use my full-node instead of wasting time on ...
- 11
12
votes
4
answers
10k
views
Are there any android wallets for Ethereum? [closed]
What Ethereum wallets are available for Android? Or which ones are still being developed?
- 4,810
0
votes
1
answer
71
views
How do clients and nodes download their data from the decentralised network?
I have always just take it that the nodes and clients will download the data from the "network". The full nodes will download the entire blockchain state while the light clients will ...
- 455
3
votes
2
answers
1k
views
size of blockchain on hard disk for ethereum light clients
whats the size of block headers ( minified blockchain) that ethereum light clients are using?
how much is the size of the blockchain data required for the light clients to do a transaction and veryfy ...
1
vote
2
answers
4k
views
Geth Fast is running for hours
So I started using geth with --fast and it is still syncing (after more then 12 hours). Is there a way to make it happen faster?
I have tried light before, the same happened but it stopped it after 6 ...
- 113
1
vote
0
answers
147
views
how to call a smart contract function from a light node
Since you can call a smart contract function locally inside a full node without spending gas,Can you do the same from a light node like by querying all related smart contract data or something like ...
- 193
3
votes
2
answers
289
views
How can I avoid trusting any one node?
I read with interest the status of the light client protocol.
However, I do not see addressed anywhere I can find how to implement a system where I don't have to trust any one single node such as a ...
- 4,291
3
votes
2
answers
3k
views
Run mist without downloading blockchain
How do I prevent mist from ever downloading the blockchain?
I have a small HDD and can't afford the disk space.
- 3,107
0
votes
1
answer
512
views
What's the status of Ethereum Light Client?
Is there any stable Ethereum Light Client? Which one is production ready? What's the status and the roadmap?
Moreover, I'm looking for some metrics related to a Light Client:
Runtime resources usage (...
- 448
8
votes
1
answer
453
views
How hard is it for Ethereum clients to get on the new fork in case of an attack?
Vitalik Buterin writes:
Assuming ~20% participation in PoS and current prices, you could stall or break the network at a cost of ~$7 million. However, unlike PoW, recovery is simpler: Ethereum just ...
- 753
2
votes
1
answer
232
views
Event filter of a contract doesn't filter light client
hello i use the env is android go ethereum light client not web3j not web3j
i init geth code
FilterQuery selfFQ = Geth.newFilterQuery();
selfFQ.setTopics(Geth.newTopicsEmpty())...
- 31
6
votes
0
answers
867
views
Section processing failed
I am trying to connect a geth node to the network for several days with light sync, and I have encountered a lot of problems.
The last to date is there are a lot (like > 100) of error messages that ...
- 870