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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what will happen to transactions on smaller length chain when peered with longer length chain in private ethereum
what will happen to transactions on smaller length chain when peered with longer length chain in private ethereum?
Below is the scenario
Step 1: I have started Ethreum private chain in 2 different ...
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I can see my ethereum but its not going to my wallet
My ethereum has been confirmed delivered but not in my wallet,fairly new but I have made successful transactions before,I can see my ethereum in etherscan.io 0x2ecc74c6e9c42eea14863fbc1e1d9656b339a6ec ...
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What are the rules on persisting old transactions?
If a new node joins the network and attempts a full sync, it requires all transaction information from genesis to build up its chain state. To do this the transactions it receives must be the ...
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Geth returning balance 0 [duplicate]
I started my geth using fast sync first and then normal sync once it was almost synced. 'currentBlock' is not increasing since hour and 'highestBlock' keep on increasing.
geth --testnet --rpc --cache=...
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Can't send when geth started with no peers
I am trying to follow these instructions to send eth without syncing on my pc.
./geth-1.9.0 --maxpeers 0 console
Then
TX={ from: FROM, to: TO, value: VALUE, nonce: NONCE, gas: GAS, gasPrice: ...
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41 views
Ethereum fast sync and wallet balance?
I'm planning to run a Ethereum server for getting wallet balances at a specific time, which type of node should i run, fast sync will work ? or should i go for archive node ?
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1answer
57 views
geth never completes syncing for rinkeby
My aim is to synchronise a full node for the Rinkeby network.
It seems that geth does not finish synchronisation. I have had it run for over three days, but it is stuck at the last few blocks.
> ...
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Parity synced at not existing block 4839212
I have problem with parity, cant get synchronization in archive mode to end,
anything, changing arguments, max-, min-, snapshot-peers, parity verisions do not help.
I have blockchain in archive mode ...
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23 views
Why would a node stop updating chain?
I am running a private network and one node seems to have stopped updating its chain. It is stuck at block 264 while the others are hundreds past it. It is still connected to the network, but it has ...
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24 views
Service to show number of state entries for syncing?
When syncing a node it would be helpful to know (an estimate of) the number of state entries in the current state to assess how long it takes to finish syncing a node. Is there a website, service or ...
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Parity syncing in archive mode stuck at block 4839206
I am running Parity inside docker in pod in Kubernets on Google Cloud.
The pod is using disk with 2700 GB for storing Ethereum blockchain, and currently
disk has about 2100 GB free.
Unfortunately for ...
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26 views
Can't catchup with Mainnet
16GB Linux, 512 GB SSD, mainly started for RPC purposes only. No mining activity.
geth --datadir ./data --syncmode fast console --rpc --rpcport 8545 --rpcaddr "0.0.0.0" --rpccorsdomain "*" --rpcapi "...
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29 views
Unable to Synchronize raspberry pi node my private network
I have created a private network with 3 nodes - two nodes in computer and one in raspberry pi
I connected computer and raspberry pi to same network through LAN
computer ip: 192.168.122.1
pi ip ...
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30 views
Ethereum parity high IO - slow response for getBalance
We have a strange problem with parity after our smart contract addresses are increased. There is a scheduled process to check for the transaction records and we have web3j calls to getBalance/...
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1answer
83 views
Geth interface panic after weeks of being in sync
After weeks of being in sync and working fine, my Geth just stopped. Upon restart, what started as a long hang on FS Sync Time (repeat output with different values, no further movement beyond ...
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21 views
Different synchronization types
What are the different synchronization types for an Ethereum node? Which of them are client-specific (Geth, Parity)?
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Synchronisation failed, dropping peer valid and Impossible reorg
I'm working on a project called Rubykube Workbench. But the "ethereum/client-go:Stable" container gives error.
System information
Geth version: 1.8.23-stable-c9427004 (docker container)
OS & ...
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41 views
Best way to support restoring of all the keys of a mapping
I have a contract, in which I maintain the keys of a mapping in two different ways:
Storing each key in an array
Emitting an event for each key
I do this in order to be able to restore the keys (and ...
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1answer
29 views
Token real synchronization from my website
I like to integrate a real token synchronization (From distributer wallet account to user's wallet address the token need to transfer) in my website. My website needs to interact with the blockchain ...
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54 views
Slow sync since Constantinople reason?
Noticed two days ago my live ETH node has not been able to keep up with the network. It is a fast VPS that always was fine until two days ago.
Running 2.3.5-stable of Parity.
Block generation is ...
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24 views
Geth syncing keeps failing at block number 7279144
Here's the log.
INFO [03-04|04:55:46.685] Imported new block headers count=0 elapsed=5.165ms number=7279336 hash=87c04b…cde65c age=3d12h45m ignored=192
INFO [03-04|04:55:46.728] ...
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35 views
Private blockchain losing access to older blocks
So, my private blockchain became out of sync and one of the nodes reset to block 0 – it then synced up with the other nodes. The node that went to block 0 is the node that is providing the rpc port ...
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1answer
926 views
Help with Syncing Geth: 1.8.23
I am not sure if I'm alone in this but it seems that the latest Geth client is very slow.
I tried posting the issue on Geth's github page but it got closed almost immediately and no one is replying ...
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Are regions a factor in downloading current Ethereum blocks?
We are currently having some problems syncing our nodes. Our server is located at the Asia Pacific region. Earlier our servers where in Azure and we don't have any troubles syncing. It has been 3 ...
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Node replication
In a multi node network (4 node), if one of the node is down and comes up with higher block number and with faulty data . Will all other three nodes replicates with the failed node data. or all the ...
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Wallet stopped syncing on block 7,160,687
my Mist/ Ethereum Wallet version 0.11.1 stopped process synchronisation on block 7,160,687. What do I have to do to get it going?
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1answer
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Is it possible to call a Contracts function from a set setTimer? Web3JS
I want to be able to call a function of a contract every 60-120 seconds, in my JavaScript code I have a set timer that runs for down a timer from 120 seconds down to 0 by subtracting 0.01 every 10 ...
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68 views
Why geth light mode syncing keeps stopping after it stopped first time? And how should I figure this out?
I used geth fast sync mode before, but it kept stopped and when it stopped, I had to delete all synced data and start over again. So I changed to "light" sync mode, and it worked well for a month. But ...
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65 views
How does new block propagation, step by step, work in Ethereum?
I'm trying to understand how nodes propagate new valid blocks in Ethereum.
Here's my attempt at a step by step how description of the process:
1. Miner constructs a new block and starts iterating ...
2
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0answers
56 views
Geth crashes, “missing trie node”, rlp: expected List
I am struggling with failing geth with my Dapp.
I got an error like this:
Web3
UnhandledPromiseRejectionWarning: Error: Returned error: missing trie node ...
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57 views
Geth not download certain block number
I'm running a testnet geth node in fastmode and I have a worker that will check the transaction data in the blocks. However, I noticed that geth jumped from block 4990417 to 4990429, skipping the ...
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Header broke chain ancestry, Synchronisation failed, dropping peer & retrieved hash chain is invalid
System information
Geth version:
Geth
Version: 1.8.22-stable
Git Commit: 7fa3509e2eaf1a4ebc12344590e5699406690f15
Architecture: arm
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.11.5
...
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1answer
48 views
Geth syncing fast Ropsten too long delays between importing new segments
i have a problem with my Geth Ropsten node.
Time between importing new segments of chain is too long.
For example logs from my docker container below
geth-testnet_1_6d184080c9e1 | INFO [02-11|13:30:...
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Error in syncing of Ropsten testnet on geth node
I am using a geth node to sync with the ropsten testnet . For the last few days I have been encountering the following error frequently
Error: invalid gas used (remote: 7987157 local: 7897475)
All ...
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82 views
Error trying to synchronize geth clique client after shutdown
I'm working with a private network using geth clique clients. Each time a node shut downs, (after a power cut, or just killing the geth process), if a try to put it to work again, the node can't ...
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1answer
91 views
Why is Geth importing the same block multiple times?
I have this geth node that run in testnet and a program(worker) that will read the block every second. I notice sometimes, the geth imported segment chain with same block number but different hash, ...
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1answer
128 views
Node lags behind 100 blocks, states are finished syncing
I run my geth node with the following command:
./geth --cache 8192 --syncmode full
It has been syncing for a long time, and it looks like it has finished syncing:
> eth.syncing
{
currentBlock: ...
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85 views
Really slow syncing on mainnet with SSD disk and archive mode
I've set up a full Parity Ethereum node connected to the main network on a server with 2TB SSD, 4 CPUs and 8GB memory.
I've set the pruning mode to archive since my application does a lot of state ...
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38 views
ETH NODE Sync issue - It first syncs, then slows down and falls behind
Geth server Info:
6 cpus, 18gb mem
SSD: 450 GB (42%used)
Geth Config is below. So we have been upgrading our server one after the other to hopefully resolve this issue... We are supporting an ...
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1answer
127 views
What are the benefits of ethereum 'archive' sync mode and who should use it?
We have set up a private Ethereum node for our blockchain application connected to the mainnet. The node runs on a server with 2TB SSD, 4 CPU and 6GB memory. It's been syncing for about a week and is ...
0
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1answer
32 views
run multiple parity clients in parallel
How can I run multiple parity instances on one machine? With geth it's easy. I just have to set different --port numbers. What's the equivalent for parity?
I want to recreate Afris scenario.
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Syncing events history for specific addresses, possible?
I am writing software that needs the full history of events but I only need it for a certain contract address, which I would guess is a very common use case for app developers.
Is there a way I can ...
0
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1answer
96 views
Speeding up Geth Synchronization
What would help speed up synchronization?
I'm not sure if it's a bandwidth issue or a CPU issue?
If I were to upgrade my processor would that help make it move faster or do I need to upgrade my ...
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1answer
35 views
Getting the last synced block is 0
I am trying to get last synced block but it always 0.
So I have run
geth --syncmode fast -cache 4096 --rpc
Here is a logs
INFO [12-19|09:47:50.058] Imported new state entries count=...
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Mainnet sync Broken
I am having a Mainnet on Azure VM which was syncing the network as expected, but mean while after adding Ropsten network syncing on the same VM simultaneously I'm facing problem with Mainnet sync ...
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Delay on receiving block by peered node
Sometimes it takes an around of 25ms to import new block by the other peered node after mined by miner. But sometimes it increases directly around 400ms to import block by peered node after mined by ...
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1answer
103 views
Known states for testnet on fast sync mode Nov - 2018
Whats the current knownStates for testnet on fast sync mode Nov - 2018
Is there an online service which provides the current states of the ethereum testnet.
It been several days and --testnet fast ...
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1answer
60 views
Who is providing the syncing and bootstraping services on ETH? Do they get paid?
I understand that a node can request synchronization from the network. But who is fulfilling those requests?
How are these requests sent out? Are they sent to the entire network or 1 specific node?
...
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2answers
386 views
Syncing with Mainnet/Ropsten blockchain
If use gethcommand,then the node starts to sync with Ethereum Mainnet by default.If usegeth --testnet --networkid 3 --datadir <testnetdatapath>,then the node will connect to Ropsten.
How does ...
3
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0answers
71 views
Spoofing of totalDifficulty variable
Péter Szilágyi, in his talk in Taipei, claims that totalDifficulty can be spoofed:
https://www.youtube.com/watch?time_continue=575&v=qJA6J0mP73w
How is that possible? Can the variable only be ...
