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 is Geth's “fast” sync, and why is it faster?

One of the answers to this question suggested using Geth's --fast flag to help quickly synchronise the block data. How does the flag work, and how does using it speed up the synchronisation? Are we ...
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556 views

Geth sync and exit

I don't usually keep my Geth instance running, but I would like to keep my Ethereum blockchain synced so that starting Geth is not slow. I reason that I can create a cronjob for this. So my question ...
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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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Geth stuck at “Regenerated local transaction journal transactions=0 accounts=0”,PLEASE HELP

I run a private chain with mulitpe Clique POA nodes for several days. Today I found the block can not update normally. The Geth version(executale version) info: [root@localhost ~]# geth version WARN ...
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Private Blockchain Chain Spec Sanity Check Please

A private blockchain running for two years runs find on Parity 2.3.9. When upgrading a node to 2.4, sync stops. Peers are still strong (25) but block import repeats at Block X where Block X is the ...
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1answer
90 views

Ropsten Blockchain Size on Disk December 2019?

Hello what is the size of the Ropsten Blockchain, on disk, using Parity with full trace on? (Info required to provision a VPS).
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geth sync stuck at 2,700,000 [duplicate]

It all ran well before 2,700,000 but when comes above 2,700,000 hellish... INFO [12-21|00:08:43.253] Imported new chain segment blocks=2 txs= 5 mgas=0.356 elapsed=30.309s mgasps=0....
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2answers
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How to test chain reorganization with testrpc?

I am working on blockchain synchronization script. I need a way to make reorganization programmatically for testing purposes. Is there such functionality in some testrpc?
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How much more it will take for Ethereum wallet to Sync - 2019

I has been a week when I tried to Sync Ethereum on SSD VPS. Here are the details - Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): ...
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Geth sync at 99.99%, Latest block is 0, Importing state entries for a long time [duplicate]

I know its a common issue but I wanted to post to see if there is an updated solution. I am running: geth --rinkeby --rpc --rpcapi="personal,eth,network,web3,net" geth attach http://localhost:8545 ...
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Ethereum classic node syncing, still around approx 100 blocks behind even on SSD

Does somebody know what to do? SSD disks are not enough? How much cache do I need to allocate for it to sync in time? Still around 100 blocks behind and 0/0 blk/mgas sec, sometimes 1 / 0 blk/mgas sec. ...
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1answer
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Installing Mist after I already had Geth

I already had geth installed and Rinkeby testnet synced. After that, I wanted to see how Mist works and downloaded Mist ( 36.7 MB Mist-linux64-0-9-0.deb). When launched Mist and choose Rinkeby test ...
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1answer
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What is Parity's “warp” sync, and why is it faster than Geth “fast”?

A follow-up of one of the classic questions on this site: One of the answers to this question suggested using Geth's --fast flag to help quickly synchronise the block data. Now, parity comes with ...
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0answers
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Question on initial sync and Freezer (SSD and HDD)

I've kicked off a fresh fast sync of Geth v1.9.2 and after 3 weeks it's still pulling states (state trie). As per the documentation you can use the Freezer with a HDD as it references old data so ...
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1answer
131 views

Official data about synchronization time

Are there in the literature or from the Ethereum community/foundation any official benchmark about geth (or any other client, e.g. parity) initial synchronization time (with both fast and normal sync)?...
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1answer
67 views

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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1answer
62 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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394 views

Conflicting reports on sync mode and inability to see balances

I've been trying to maintain a full node for several months. It seemed to be working until I noticed zero balances this morning. etherscan.io site confirmed that balances are not zero, so ...
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1answer
45 views

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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0answers
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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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0answers
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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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6answers
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How to check my sync status on Geth 1.5.5, Raspberry Pi 3

Have a Geth 1.5.5 node running on a raspberry pi 3. When I type in sudo systemctl status geth I'll get ever changing time and block information. Neat, but how do I know when I am synced up? Is ...
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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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1answer
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Syncing a fraction of the blockchain

I have a few questions about the way the blockchain syncs. I noticed on a couple of posts while researching that it's possible to start the block chain from a certain block. It was suggested that if ...
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1answer
64 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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2answers
270 views

Ethereum hard-fork: Geth Syncing Issue

I have been running a geth testnet instance for the last 2 months and learning this. But after the hard-fork i have seen the syncing to be extremely slow. I updated geth to Version: 1.7.0-stable. eth....
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2answers
266 views

RPC connection to ETH Mainnet

Currently I am using GETH, but it is getting like 4~5 days trying to sync without success! May I know any other ETH client which can provides RPC connection and able to sync with the mainnet fast?!?
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1answer
168 views

slow syncing Ethereum blockchain

I used VM in Azure(1TB SSD, 16GB RAM,Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz). Install geth.exe Run geth --fast --datadir F:\Ethereum in cmd blockchain still downloading it's almost more than 5 ...
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2answers
518 views

I sent a transaction and got a hash, but blockchain explorers don't see it. What happened?

I used in the eth client web3.eth.sendTransaction({from:sender,to:receiver,value:amount) to try send some ether, typed yes to the question, then got a hash number ...
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0answers
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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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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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10answers
29k views

How can I find out what the highest block is?

I'm syncing up a new node. How can I find out what the latest block is so that I know how far I've got to go?
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2answers
612 views

Fast syncing never stop

I have run geth --fast --cache=1024 for a week and I think I am almost complete: etherscan.io shows: LAST BLOCK 4005552 and my eth.syncing shows: { currentBlock: 4005449, highestBlock: 4005553, ...
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0answers
141 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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0answers
194 views

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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3answers
574 views

Alternative of geth Ethereum Node

I am new to Ethereum block-chain.I am trying to syncing ethereum node in testnet(Rinkeby).I am using HDD for syncing geth ethereum node.I know it very slow to syncing. So,Is it any alternative of ...
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113 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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0answers
108 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 ...
0
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1answer
434 views

Finding eth balance within geth [duplicate]

I'm pretty new to mining, but I hope someone can help me. when I use eth.syncing, I get this result: currentBlock: 1, highestBlock: 4884563, knownStates: 42878500, pulledStates: 42868030, ...
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1answer
37 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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0answers
121 views

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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2answers
75 views

Reading most recent blocks without syncing chain

I would like to be able to read the newly created blocks and list of transactions it included within, without storing the chain on my desktop. Can that be done? Thanks.
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2answers
844 views

parity --warp taking forever

I am trying to sync the parity wallet by running parity --warp Apparently this is only meant to take a couple of minutes, but this has been going on for a couple of hours. Does any know how much ...
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0answers
57 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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1answer
1k 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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0answers
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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 ...
0
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1answer
226 views

Rinkeby Ether faucet error [duplicate]

I got funded from the rinkeby faucet but it didn't show up in my wallet. Does anyone have an idea why the sync with the rinkeby blockchain stopped with just 218 remaining?
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1answer
2k views

Very slow Ethereum sync

I was around block 2.5 million on a "full" sync and I think it would've taken months to fully sync. At times the blockchain grew faster than my computer was syncing. I moved that directory over to a ...
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1answer
1k views

Do you have to download all 'Imported new state entries' before syncing with the highest block?

I'm new to Geth... I'm performing a fast sync using the following command: geth --syncmode "fast" --cache 4096 I had been downloading block data until about 1000 blocks from the highestBlock. Then ...

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