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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Upgrading geth after EIP150 Hardfork

Due to the recent EIP150 Hardfork in Ethereum my Geth node needed an upgrade from v1.4.10 to v1.4.18: cd ethereum wget "https://github.com/ethereum/go-ethereum/releases/download/v1.4.18/geth-linux-...
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1answer
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Ethereum Wallet suddenly cant find peers anymore

I have a problem with my Ethereum Wallet. It was fully synchronized previously and constantly resynched while it was open and also after several shutdowns of the machine. Now, it suddenly stopped ...
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1answer
1k views

Syncing slow to a crawl (2048 blocks in 2 hours)

I had no issues before, but my syncing has gotten incredibly slow with geth. My system time and date are good (set by ntp) so that shouldn't be the issue and my Internet connexion works fine. It took ...
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1answer
2k views

Wallet sync restarts from block 0 after closing and launch

I downloaded the Ethereum-wallet for OSX and started the sync. It took like 10 hours to sync more than 1M blocks. I closed the wallet and restarted today, but I was surprised to see that the sync is ...
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2answers
367 views

Mist 0.5.1 synchronization problem on Windows

I'm running Mist on Windows 10. I have been trying to download the blockchain since yesterday and the process is too slow and cumbersome. I switched off the firewall and I set the clock and I started ...
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1answer
777 views

Can I do a pruned fast sync?

I would like to do a fast bootstrap of the Ethereum blockchain with minimal disk space usage. Can geth do a pruned fast sync?
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1answer
1k views

Running a full Parity node with SSD disks in a RAID 10 setup?

I am planning to run a new full node, from scratch, using Parity. From what I understand, it is imperative to use SSD disk(s) in order to do be able to do initial sync and keep up with the network. ...
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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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1answer
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How to monitor block synchronisation?

I want to display information about Geth, specifically eth.getBlock("latest").number, in a Node.Js GUI. However, I'm not sure how to keep it updated. One solution is to request the information from ...
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1answer
136 views

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
178 views

Ether wallet stuck while syncing. Can I upgrade without syncing? [duplicate]

My ether wallet (0.5.2) is stuck on block 2,420,853 while syncing. Can I upgrade to 0.8.1 without syncing? My goal is to convert my Dao tokens to ether. So I need to update my wallet. Eeek! ...
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1answer
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Stuck searching for peers, wont update blocks

I know this has been asked before, but i cannot get my ethereum wallet to sync. it is stuck at the "ethereum node needs to sync, please wait". The Test network seems to work and starts downloading ...
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1answer
272 views

geth 1.3.6 consistently drops synchronisation after ~5 minutes

My geth consistenly stops synchronising after approximately 5-10 minutes of healthy downloading blocks. I've google around and tried various fixes including: Running with the flags: --rpc, --cache=...
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1answer
2k views

Not syncing due to “unhandled trie error: missing trie node”

Having an issue. Was caused by Avast blocking a file after I sent some Ether to Dao. Have removed Avast now that I understand it was messing stuff up. Restarted computer... now when i try to sync it ...
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0answers
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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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771 views

Synchronisation using geth; DAO fork-check, dropping is the only message recieved

I'm attempting to synchronise with the blockchain using geth on Win7 64bit. Presently pretty much all I'm getting is repeats of the same message; timed out DAO fork-check, dropping (see bottom). ...
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1answer
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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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3k views

When transferring Ether, who needs to be in sync with the blockchain?

A transfers ETH to B: who needs to be in sync with the blockchain? My comprehension is that A only needs to be sync, is that correct ?
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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.
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1answer
2k views

How can I create a list of peers from my syncing geth node to manually paste into my non-syncing geth node using the admin.addPeer() command?

I have an Ethereum node that is not syncing to the Ethereum network. It is possible that there are some issues with the bootnodes - refer to geth does not sync out of the box . How can I easily ...
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2answers
735 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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3answers
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How to sync pyethapp (python ethereum client) with the mainnet?

I just installed pyethapp. However, I'm unable to sync the blockchain. Here is what I get when I run the client: 0 ✓ user@host ~ $ pyethapp run Failed to import scrypt. This is not a fatal error but ...
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How metamask works

I want to understand how MetaMask works. When a user connects to the main network using MetaMask, there are a few possibilities I can think of: MetaMask creates a dedicated full node (seems ...
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1answer
1k views

geth rewinds chain on every startup

I'm using geth to connect to the rinkeby network with fast sync. However, every time I restart geth I receive the following output: Maximum peer count ETH=25 LES=0 total=25 ...
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2answers
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Ethereum Blockchain Size

I synchnorized Ethereum blockchain in my AWS Ubuntu 16.04 server with 110GB Hard Disk. The command I used is geth --syncmode=fast --cache=1024 According to bitinfocharts, the total size of Ethereum ...
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1answer
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Ethereum Wallet (Mist) not showing ETH balance [duplicate]

I decided to try out Ethereum and installed Ethereum Wallet for Linux. I created an account and sent some ETH from my Coinbase account. I can see the balance in Etherchain, but my Ethereum Wallet ...
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Lost ether: wallet on some other chain

Yesterday I decided to move my Ethereum coins to my coinbase account from my PC based Ether wallet from Ethereum.org . I had 107ish coins. I sent 1.2 to my coinbase address as a test and they arrived ...
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Where can I go if I still have problems with syncing the blockchain?

I've searched online, this Stack Exchange, including synchronization, and am still having problems with syncing Geth. Where else can I look and try to get help?
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373 views

When sync'ing with geth, what is the meaning of the value of “processed”?

I had thought that the value of the "processed" during a sync was the block number, but the number goes far beyond the latest block. What is the meaning of this number?
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375 views

How do I pass enode URI's to --reserved-peers?

So I know I have to type in terminal: parity -j --reserved-peers But I do not know what to type after --reserved-peers, The actual peers I want to add are listed here. But I do not know if I am ...
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1answer
1k views

How can I find ETC nodes (to pass their enode URI to --reserved-peers) because the classic chain no longer syncs through tor?

I was syncing the ETC chain on parity through tor. Everything worked fine. I got to block 3,000,001. Everything stopped, I realized there was a hardfork. I updated the software (ETH worked fine), but ...
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1answer
384 views

Akasha: synchronization was stopped

I downloaded AKASHA and started the binary, after the quick setup I always get the message: Synchronization was stopped Your machine is currently synchronizing with the Ethereum world computer ...
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3answers
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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 ...
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What do the geth sync messages mean?

So far I've gotten these rather cryptic messages while syncing: Imported new block headers Imported new block receipts Imported new state entries Stalling state sync, dropping peer What do they mean?...
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1answer
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Parity warp syncing slow

This is the first time I try to install an Ethereum client and I'm trying with Parity v1.6.6 on Arch Linux (sudo pacman -S parity). I read that the --warp option allows to save time not syncing the ...
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1answer
134 views

What is the accepted methodology for verifying the integrity of pulled chain data?

What is the accepted methodology of checking the integrity of a chain? If I poll my Geth/Parity node for block data using web3.js how can I confirm that the data returned is not going to be subject ...
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Resyncing and deleting chaindata directory

I'm about to do a resync of the blockchain but as I was deleting my chaindata directory from: ~/Library/Ethereum/chaindata I noticed there was also another chaindata directory located here: ~/...
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1answer
651 views

How much time until the state data is PoW validated when using parity warp?

Ethcore claims parity --warp only takes one minute to sync the chain. I tried myself and it indeed takes around 2-3 minutes on my machine with a slightly bad connection. 0 ✓ user@hoster ~ $ parity -...
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1answer
928 views

How do I manually configure the geth fast sync pivot block?

WARNING - Running Ethereum Wallet 0.8.7 without manually starting geth 1.5.2 will end up clobbering your blockchain data! UPDATE Nov 22 2016 - New geth 1.5.2 binaries will be downloaded by Ethereum ...
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361 views

JSON-RPC command to get blockchain synchronization status

Is there some json-rpc command, so that I can get the blockchain synchronization status from geth. I am trying to connect to the --testnet using get. Its taking forever to connect to the testnet, are ...
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pyethapp is unable to add transactions to blockchain

I'm using pyethapp and web3.js to make transactions on a private network. var to = "1152a50b91887591a2447b233105f392dbae72ce"; var from = "4dfd7cb92bca796821d5fc4512a6a02cc98d833d"; var json_data = {...
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3answers
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How do I keep my Ethereum Wallet synchronised after the initial synchronisation

I have successfully installed and synchronised Ethereum Wallet and it has correctly brought in my test Ether purchase. How do I resynchronise to ensure more current transactions are recorded on my ...
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1answer
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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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1answer
318 views

What will happen when an ethereum node loss internet connection?

Will it reconnect to the ethereum network upon establishing internet connection again automatically and sync Data ? Can we perform transaction and calls on the offline(no internet connection) ...
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2answers
178 views

Too little storage for sync blockchain

already having some ETH on my mist wallet - contributed them a couple of month ago. I can't sync the blockchain as I have to little storage on my computer. Using OS X 10.11.3; ETH Wallet Version 0.8.8....
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1answer
738 views

Can I reduce the space chaindata takes up?

So the size of my chaindata folder has snowballed to close to 80GB. Is there a way to reduce it or is the only way to delete it and resync geth with --syncmode fast? Thanks!
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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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1answer
145 views

Unable to start parity: database migration fails repeatedly

I am unable to start Parity, the database migration fails repeatedly. How in Parity on MacOS (1.4.5 already installed) do I eliminate this error so that my Parity will run? Geth is fine but not ...
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1answer
397 views

ethereum wallet slowing down entire system (ubuntu 14)

I installed the wallet (0.8.7) on my Mac. Synced within 20 minutes, all good. Trying to do the same on my Ubuntu 14 (on an lenovo x220, with ssd), and it takes ages to sync (not the issue I am ...
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1answer
286 views

Having trouble syncing testnet post HF

I'm having issues syncing my geth node to the Morden testnet after the recent protocol change. Everything was working fine on Monday - today I downloaded geth-1.4.18 and attempted to sync but any ...