Questions tagged [synchronization]
Syntonization is the process where your node / client (geth, Ethereum Wallet, etc) receives the most up to date data from the Ethereum blockchain.
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questions
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85 views
Transaction rolled back and re-mined later?
A few hours ago, I was testing my dapp on ropsten and something strange happened.
I sent a transaction (A), to the blockchain, it got mined and my server synced it. Then 30 minutes later, I sent ...
4
votes
1answer
8k views
Optimal sync mode for running an ethereum node that can process transactions
I need to run a local ethereum node, I've downloaded mist wallet but I've had some issues. I have to redownload the whole blockchain again, and I noticed that the problems I had could be related to ...
0
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1answer
86 views
Retrieving transaction hash in all blocks after fast sync
I have set up an ethereum node using fast syncmode. I want to retrieve all the transaction hashes and the recipient between a range of blocks, let's say 0 - 13000. Will I be able to retrieve the ...
6
votes
2answers
508 views
How much faster is it to sync the FULL blockchain with --cache=1024?
Running Geth with --cache=1024 is recommended to be able to sync the blockchain faster (since the default is only --cache=16.
I want to have the full blockchain (all past transaction data) so do not ...
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vote
1answer
102 views
How can I upgrade my GETH?
I have an application which is talking to my Smart Contract through GETH RPC.
In order to do so, I need to run my own node and sync it with mainnet.
The problem start when I need to upgrade my GETH. ...
3
votes
0answers
132 views
GETH gets out of sync from time to time
GETH tooks 6 days to sync, after that it will get out of sync from time to time. (PC is running with SSD, never shutdown, and network availability is 100% with 500mbps connection).
May I know how ...
4
votes
1answer
165 views
Can someone share your geth export file with me?
I need to setup an archival node ASAP but the download takes around 1-2 block per second. With this speed it will finish in 2 months (if it doesn't stall, but it does, I have to restart it manually ...
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0answers
58 views
What portions of the block are validated in Geth's --fast and Parity's --warp mode?
When I am syncing an Ethereum node using Geth's --fast mode and Parity's --warp mode, what portions of the block are being validated as they are being downloaded?
I understand that --fast and --warp ...
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0answers
405 views
download Ethereum blockchain
the blockchain now has 6,170,500 blocks. To speed up the download I'm using the method at https://mudra.cloud/ethereum/blockchain.html Is this the fastest method? Does anyone know another faster ...
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votes
4answers
27k views
Can I download the whole blockchain from somewhere?
Bitcoin used to offer sharing/downloading a bootstrap.dat which contains the whole blockchain.
Are there alternatives to getting it trickling through the peer-to-peer network? Can I just download it ...
4
votes
2answers
3k views
Basic Blockchain Implementation: how is the blockchain on a given node “synced” with that on another node?
Here's my understanding of the execution flow of blockchain:
Consider two nodes, node1 and node2. Let's say there are 10 users on node1. They're making transactions, but none of these are actually ...
0
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1answer
703 views
When syncing, the current block is 6154852 and eth.blockNumber shows 0 [duplicate]
I used geth to sync the blocks in mainnet, but the sync last for a long time.
eth.syncing shows the current block is 6154852, near the highest block. But eth.blockNumber shows 0. Why does this ...
1
vote
1answer
120 views
archive mode very slow
I've a node that I'm trying to sync with:
--syncomode "full" --gcmode "archive" in order to address this needing Get a balance of an address at a certain block
Unfortunately things became soo slow ...
5
votes
2answers
752 views
Blockchain sync on geth stalls at block 1.1 million
I saw the responses on a few issues regarding ethereum and blockchain sync on this site, and was wondering if anyone could help me with a problem I'm facing.
I've been trying to sync the blockchain ...
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vote
0answers
311 views
Parity - what --tracing and --pruning options use to get all blocks fastest way
I need download all blocks to be able to get all history transactions to create some statistics like mean Ether amount etc. Is it necessery to use --pruning archive and use ~ 1TB od disk? Or default ...
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0answers
3k views
How to check sync status
How can I check simplest way am I synced with blockchain? When I executed geth attach command and typed in:
100 * eth.syncing.currentBlock / eth.syncing.highestBlock
The outcome sounds about 99....
2
votes
1answer
1k views
“being full node” vs.“being sync” : Are they the same?
When we try to be sync using Parity or geth, Does it mean that we are trying to be a full node ?
And is it correct to say that:
being sync = being a full node = keeping the entire blockchain ?
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0answers
77 views
can't read past event logs
const event = contractInst.Transfer({},{fromBlock: 0, toBlock: 'latest'});
events.get(function (error, result) {
if (!error) {
console.log(result);
}
});
The get ...
2
votes
1answer
798 views
Geth Light Sync functionality
If I use the light version of geth sync, can I make a token & deploy contracts using that? The light client "gets only the current state", from that point onwards or everytime I query the ...
1
vote
1answer
85 views
Multi node replication
In a multi node network, if one node is down (and a majority of nodes are up and running) for a period of time - say its down at block 100 block and rejoins when the network is at block 200.
Q1: ...
1
vote
2answers
298 views
Why does the mainnet download take a long time? How can I improve this? [duplicate]
We have been working on integrating a ETH node to our e-wallet to enable ether transactions. We completely build the platform by connecting to a private Ethereum network.
Now everything is ready to ...
0
votes
1answer
177 views
Is it possible to create batches of transactions without using smart contracts?
Scenario: Suppose that I have to make three transactions simultaneously to Alice, Bob and Claudia. Now the condition is if any one transaction fails the other two must also not go through.
Query: Is ...
4
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0answers
115 views
Parity create testing transactions and blocks
For test purposes, I would like to make test blocks including test transactions against main net.
For example I would like to make a transaction that sends one ether from 0x1234567... to 0x99999999......
0
votes
1answer
561 views
How do I tell if initial geth sync is done in 'light' mode on testnet
I just installed geth on Windows 10. Then I did the initial sync in light mode on testnet, and my status is as shown on the screenshot below.
I have two questions (related):
How do I tell if the ...
1
vote
1answer
260 views
Syncmode = full, and still getting “missing trie node”
I'm running on Rinkeby testnet with this command (I resynced the whole blockchain with this):
./geth --rinkeby --syncmode full --rpc --rpcapi "web3,db,eth,net,personal" --datadir /.../
and after the ...
23
votes
4answers
16k views
How can I empty the blockchain?
I am trying to do a fast sync using geth --fast but I am getting this message:
blockchain not empty, fast sync disabled
How can I empty the blockchain to allow for fast sync?
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vote
0answers
207 views
Parity: with 'warp' sync enabled by default, is there still any advantage in using fast pruning?
From Parity Ethereum Documentation:
Warp Sync is an extension to the Ethereum Wire protocol, which involves sending snapshots over the network to get the full state at a given block extremely ...
1
vote
1answer
142 views
How my node is sync with highest block number of block-chain in which block number transaction have done of some ether? [closed]
I am new to Ethereum block-chain.One question in my mind. I connect geth node to test network with "--fast and --cache=2048" parameters.So my node is sync is after 8 hours.And I successfully deploy ...
0
votes
1answer
58 views
Can Raiden Network transfers occur offline?
Since Raiden is off-chain, could I theoretically set up some channels among a group of local parties and conduct transactions offline via NFC, bluetooth, wifidirect, etc.?
Since it's off chain and ...
1
vote
3answers
2k views
Geth not syncing
Apparently my installation of Geth breaks after some day of working, and log is not clear to me:
WARN [03-16|12:50:49] Synchronisation failed, retrying err="state node 266e74ā¦51868f failed ...
3
votes
3answers
2k views
How to find the sync status of your geth node via RPC?
NOTE: this question has been marked as a duplicate of another question which is trying to get the status using CONSOLE. We are trying to get the status using the RPC API, which is different. In ...
2
votes
2answers
194 views
What geth sync mode to use for a blockchain-explorer-like analysis
I want to do analysis of the ethereum blockchain in a manner similar to what blockchain explorer sites do to answer a few more general questions.
I will need info on all addresses and transaction ...
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vote
0answers
27 views
Should I wait for sync to be 'finished' in 'syncmode=light' before I could check account balance OR transact using the account? [duplicate]
NOTE: I'm aware of another question, but, it's related to 'fast' syncmode, and mine is of 'light' syncmode.
I'm running light node client for rinkeby using command:
geth --rinkeby --rpc --rpcapi ...
0
votes
0answers
130 views
Getting Errors while syncing of blocks (Ropsten network)
Today the block sync with Ropsten network on my machine is giving me following error :-
ERROR[06-05|06:59:12]
########## BAD BLOCK #########
Chain config: {ChainID: 3 Homestead: 0 DAO: <nil> ...
7
votes
2answers
411 views
How can I maximize the probability that my ETH nodes stay synchronized with mainnet for as long as possible?
I run three full ETH nodes, one on my local, home network, and two in the cloud. All three make use of geth.
My "local" node, is always in sync with mainnet, i.e. always showing the same last block ...
0
votes
1answer
113 views
Why is that the 'blocks count' is always in multiples of 192?
I'm running light node client for rinkeby using command:
geth --rinkeby --syncmode=light --rpc --rpcapi personal,db,net,eth,web3
The terminal runs continuously and I don't quit it when I close the ...
0
votes
1answer
71 views
How do I deploy a contract when my blockchain isn't syncing?
I would like to deploy a smart contract using truffle but I got problems while syncing the etherum blockchain. There are always blocks left and the syncing process is never finished. I don't want to ...
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vote
1answer
85 views
What happens when transaction is sent from smart contract?
If during smart contract execution it decides to send a transaction, then transaction would be created, validated and broadcasted to the network from all the nodes executing this smart contract. ...
1
vote
1answer
1k views
Geth not synchronizing - Firewall issue?
I am trying to sync an ethereum node on my computer, which is connected to a university network.
However it seems that geth is not finding any peers, same thing with mist. It looks to me like the ...
5
votes
2answers
3k views
How to fix “address already in use” error when attempting to launch geth console?
I'm downloading the chain and I've processed more than 2 million blocks so far. I'm trying to attach to the geth console to view the syncing status, but I've tried typing geth console in another ...
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vote
2answers
114 views
Trouble getting started with Ethereum Blockchain
I'm trying to get started with Ethereum. So I tried the Ethereum wallet, but it took way too long, and after it finished I couldn't even mine on the test network. So instead, I tried to use GETH, and ...
2
votes
3answers
3k views
Node on private blockchain with custom genesis file not mining nor synced
I am running two nodes over a private blockchain with a custom genesis file that uses the new "config" recommended here. However, aside from the random handshakes with external nodes I am trying to ...
1
vote
1answer
873 views
Parity sync time April 2018 - many days normal?
I am trying to set up an Ethereum node. I have tried with both geth and Parity and they both seem to be taking several days. I am on a high-end system with fiber internet, so I am wondering if this is ...
0
votes
0answers
354 views
Can not sync to ropsten
I have trouble syncing to Ropsten. I have just upgraded geth version to 1.8.7, then i run the command to remove the old chain: geth --testnet removedb. Then the command:
geth --testnet --syncmode "...
0
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1answer
234 views
How to add an enode with Ubuntu and Parity UI?
I have a problem of parity syncing and some one suggest me to use an enode as follows :
enode://...
0
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1answer
1k views
How to synchronise Ganache-CLI accounts with Ganache-UI?
When I launch ganache-cli for Port 7545, it will create 10 accounts by default.
ganache-cli -p 7545
However, when I then open the Ganache-Desktop-App, it will show different accounts and the ...
0
votes
1answer
657 views
Can I mine without synchronizing the blockchain by using a mining pool?
Since I'm not able to complete the blockchain synchronization, can I just mine using a pool? And if it's possible, how do I retrieve the coins?
P.S. I made an offline wallet with a Rpi, given that I ...
0
votes
1answer
241 views
Web3 empty response when geth not synced
I am running my own geth node and doing some test transactions.
When making a transaction trough web3 I get an response of transaction information. But sometimes it happens that my node is not fully ...
27
votes
2answers
46k views
Why is my node synchronization stuck/extremely slow at block 2,306,843?
Using macOS 10.12.1 with Ethereum Wallet 0.8.7, nodes are connected but Sync doesn't even start. Stuck at block 2,306,843.
What can I do? Please keep in mind, I am neither a coder nor a tech geek.
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0answers
90 views
Runtime out of memory on RPi with ethereum node
I have a private network of ethereum with 2 miners on my PC and a node on RPi, after syncing it says:
Fatal: runtime: out of memory
The sd card is 16Gb and it should have plenty of free space, is RAM ...
