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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Ethereum-Wallet Unable to connect to node, see the logs for more details

Previously I had the official windows desktop ethereum-wallet synced and working, but the other day my computer crashed and corrupted my blockchain sync, so I deleted my chaindata folder and started ...
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Mist 0.7.1 on Mac not updating blocks; unable to send Ether. How to send Ether given this problem?

Mist downloads new blocks upon a restart, thus is able to receive Ether, but I'm currently unable to send any Ether from any of the wallets in Mist. I believe the issue is the lack of synchronization ...
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1answer
107 views

Is it possible to sync an archive node with HDD in 2020?

Many bloggers have pointed out that it is almost impossible to sync an ethereum archive node using a HDD.But most of those blogs were published in 2018. I've seen several version updates of geth ...
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Synchronization: why startingBlock is ahead of currentBlock?

> eth.syncing { currentBlock: 908716, highestBlock: 928604, knownStates: 0, pulledStates: 0, startingBlock: 908891 } It looks like synchronization started from block 908891, though the ...
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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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1answer
796 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 ...
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1answer
309 views

Merkle tree child hashing process

Each non leaf node of a Merkle tree is just the hash of the concatenation of it's children. Does this literally mean stick the 2 hashes together or is there a more intricate process involved? i.e. ...
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890 views

Parity: avoid experimental `--light` but store minimal blockchain

Using parity --light is experimental, and this issue is currently blocking an initial sync. How can I avoid using --light but store minimal blockchain on disk? Something like: [footprint] ...
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1answer
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Speed of syncing the chain in parity using archive pruning mode

I am using parity v1.7.0-beta-5f2cabd-20170727 and I sync with ethereum chain in archive mode in order to keep all states of smart contracts. The command i use to launch parity is parity --pruning ...
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154 views

Full Synchronisation with Geth Repeated Tree Node Error

I am doing a university project on the functionality of the EVM. I need to use debug.traceTransaction() function which requires a fully synchronized node. I have tried to sync Geth on a university VM ...
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Ethereum block download limit

I've been syncing the ethereum blockchain for over a week now and it has stopped downloading blocks but continues to download structure. When I restart it, it resumes downloading blocks but will only ...
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1answer
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How to give more resources to Ethereum Wallet?

I downloaded the Ethereum Wallet a few weeks ago. Since then it has been syncing with the network (I don't have it running all the time). As today the block download progress is 3.700.000/3.912.000. ...
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Geth Sync Issues

I've been trying to sync for several days with the latest stable build of geth on Ubuntu 16.04 My latest attempt I ran the command as follows, after clearing the db: geth --rpc --sync-mode=fast --...
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Myehereumwallet displays wrong amount

I have 35 ETH. Etherscan shows this correctly, but MyEtherWallet displays 0.013 ETC. I did nothing. I just downloded Mist and started syncing.
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Windows Parity syncing very slowly

I installed Parity for Windows recently with the latest version 1.4.3-beta. The syncing was going fast to start but now on 2,400,000 blocks is goes extremely slow to the point of doing only a few ...
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612 views

Ethereum Wallet sync problems

Cheers, please don't laugh to my stupidity. I need some extra space on my SSD and firstly checked what takes the most of the space. Almost at the top were files under Ethereum Chaindata. I stupidly ...
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1answer
260 views

Blockchain sync… what am I doing wrong? [duplicate]

Okay, I know this has been asked a thousand times (i know this because I've seen all the post/threads) but I have to ask again in hopes something has changed. I am trying to run a node and no matter ...
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1answer
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Problem with mist Wallet 0.7.6 (Beta 20) “vulnerability release”

After updating to Wallet 0.7.6 (Beta 20), running mist start syncing mainnet from the beginning, which is very bad, because syncing ~1,7MBlocks took me 4 days last time ... Is that due to the "...
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1answer
320 views

cpp-ethereum (Homestead) starts resyncing blockchain

I just installed cpp-ethereum 1.2.2 in order to upgrade to Homestead. When eth is started it begins to re-sync the blockchain from block 1, while the whole blockchain is already on my machine. Is ...
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2answers
710 views

Transaction using geth is stuck

I have created a wallet using geth on my mac. I have sent a small amount from Kraken to that account but its stuck on "sending". Do I need to download the blockchain first on my node so it can be ...
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1answer
104 views

Syncing geth 1.9.15 took too long on HDD raid-0

I've been running full node on a server with this config: Centos 7 11 Tb hdd raid-0 32 Gb ram and I'm using geth 1.9.15-stable-0f77f34b I'm trying to be archive node but syncing took over 1 months ...
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1answer
195 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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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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Total number of state entries

I am syncing my ethereum blockchain using the default syncmode. I want to know how many total state entries are there because currently the highest block is 6544578 and the number of pulled states i.e....
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How to increase stored block states from 128 to 10 000 in Geth?

AFAIK Geth preserves states for the last 128 blocks by default. I would like to keep states for, say 10000 blocks (not turning myself into archive node). Is it possible?
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Transferring parity blockchain data to another machine does not work

For the past several days I have been trying to transfer the blockchain data from an x86_64 machine to an armv7l machine, hoping that I could avoid having to sync from scratch on the latter. However, ...
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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 ...
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geth node syncing falling behind

I am running geth node on a pretty robust server with lots of disk space, memory and processor (screenshot attached). Once geth fully syncs and I connect mist wallet to it it shows the latest blocks ...
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Which mode shoud I use for Parity syncing to use trace_ APIs for TXs since current blocks?

I want to use Parity for fast tracing TXs in blocks which will be synced only after my project start. So, if I initially run my Parity node with params —pruning=archive —tracing=on the ...
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Ropsten: Ether is not in my account, but I think it should be [duplicate]

I'm a bit confused... I've created an Ethereum account in Ropsten, and have fed it some Ether (more than 20) via faucet. Yesterday I synched my node with Ropsten and I could see the balance correctly,...
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Geth traceTransaction: missing trie node [duplicate]

I have a fully synced Geth node and am trying to run the debug.traceTransaction() method, but it keeps giving me this error: Error: missing trie node ...
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151 views

Extremely slow sync after moving to external drive (macOS; thunderbolt)

I was getting low on disk space so I decided to move the blockchain to an external drive with thunderbolt. I did it using Method 2 from this answer: In Mist browser how can I move the data (blockchain)...
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218 views

Mist wallet sync problem

At the moment I can't sync mist wallet for 3 days it download block till 4,102,477 and final hundred bloks are stuck but the numbers below (downloading chain structure) still running and running for a ...
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New blocks unbearably slow to sync

For seemingly months now, Geth has been really slow for me. Like, seconds per block: INFO [07-13|23:35:10] Starting peer-to-peer node instance=Geth/v1.6.6-stable-10a45cb5/windows-amd64/...
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485 views

Geth always returning a 0 balance?

i´m mining now for about 3 days with 3 rigs each with over 50Mh/s, but my balance is still 0. Does anybody know why ?
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1answer
340 views

What's the bottleneck in my geth sync?

I've been running geth for about 2.5 days so far, and I'm trying to work out why it's taking so long to sync. It's downloaded ~40Gb of the blockchain (up to block #2379173 if I'm interpreting the ...
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198 views

What is the blockchain download size and can i reduce it in some way?

I am currently on a connection with a download cap, and was wondering what the current download size for the whole blockchain was, and if i could reduce this download size to under 2 GB? I'm ...
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2answers
416 views

Ethereum won't synch after 36 hours [duplicate]

Installed Ethereum Geth. Funded 0.25 ETH with bitcoins. Never saw the 0.25 ETH coming into place, because as already happens with Bt-Core, it needs to synch with the network. But whereas Bitcoin can ...
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434 views

Why does syncing with the Ropsten testnet appear to pause?

I am running a node with geth via the command geth --testnet --fast --rpc --rpcapi db,eth,net,web3,personal --cache=1024 --rpcport 8545 --rpcaddr 127.0.0.1 --rpccorsdomain "*" --bootnodes "enode://...
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679 views

block download canceled, geth 1.5.9 would not download blocks

when starting out geth I cant download past block 1292880 does anyone have any idea why it would not download any more blocks?
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Ethereum balance is 0 on local (geth) despite etherchain.org reporting it has ether [duplicate]

I bought some Ether over 4 hours ago: https://etherchain.org/account/0x3d74c07013285b31049ecc7d9cb078cd1aa8ea96 When I run the following script on my local machine I get: $ geth console > ...
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259 views

Synchronisation issue on Mainnet, testnet and private network

I am just unable to synchronise on any kind of network either main network , testnet and not even on private network. I have updated my geth instance to a newer version - Geth/v1.5.9-stable-a07539fb/...
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383 views

Unable to synchronise with a remote peer

I am running a private network with two geth instances one on my machine and other on an AWS server using the same Genesis file. I am also using a networkid flag to differentiate my private network. ...
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84 views

Sync very slow on testnet after block around 589000 [duplicate]

For the past few days testnet is not working properly. As of now sync is very slow and all the testnet ether is lost. I came to know all this is because of some spamming attack. Did the steps ...
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Mist not syncing [duplicate]

I need help. Ive downloaded the latest MIST 0.8.9 on my Mac. Ive sent Ether to my wallet but it is not showing up 0x64D18245635BC6380f3d879B3ac1AFA2c3c1E063 On the bottom left it is showing "your ...
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84 views

Which recent Parity release can be used to synch a node for use with Mist 0.8.8

I am finding Geth exceptionally slow to synch. I found Parity to be much faster. However recent Parity releases make it very complex just to use the Parity client to synchronise and then open Mist. ...
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149 views

How can I sync Mist on a connection with a firewall?

I'm running Ubuntu Gnome 16.10 with the latest version of Mist installed. Whenever I run Mist at home, syncing works without a hitch. But when I run it at school, Mist opens but shows 0 peers. When I ...
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58 views

Mist RPC node error: invalid address length

Upon launching Mist, I get the following error message: Couldn't connect to RPC node Error: Invalid address length, expected 40 got 4 bytes I can't think of something I did over the last week that ...
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1answer
72 views

mist syncing is in discrepancy with node log

I am facing a strange syncing related situation for a couple of hour now (screenshot below makes it easiest to understand). Although my node is in sync with the network as per the node log (...
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Is it possible to avoid sync in Ethereumj, but still register a listener?

I'm attempting to create an contract analysis application using Ethereumj. I don't need to participate as an Ethereum node on the network and thus I'm trying to avoid having to sync the entire ...

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