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Syntonization is the process where your node / client (geth, Ethereum Wallet, etc) receives the most up to date data from the Ethereum blockchain.

1 vote

Consensus Client vs Execution Client

In short, the consensus layer (CL) client governs consensus and the execution layer (EL) client. The EL client creates blocks with transactions and executes smart contracts. The interaction between t …
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3 votes

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

No, you need to use an SSD. Q: Wait, so I can’t run a full node on an HDD? A: Unfortunately not. Doing a fast sync on an HDD will take more time than you’re willing to wait with the current data sche …
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3 votes

What is Geth's "fast" sync, and why is it faster?

From the Geth FAQ https://geth.ethereum.org/docs/faq Q. How do Ethereum syncing work? A. The current default mode of sync for Geth is called fast sync. Instead of starting from the genesis block and r …
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0 votes
Accepted

Syncing geth 1.9.15 took too long on HDD raid-0

You need to use an SSD. Q: Wait, so I can’t run a full node on an HDD? A: Unfortunately not. Doing a fast sync on an HDD will take more time than you’re willing to wait with the current data schema. …
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2 votes

Does use of geth removedb zero my account balance?

No As long as you control your private keys, your balance will not be affected. You will see your full balance when the syncing is finished. See How do I backup my ether accounts?
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1 vote

Possible to run Geth with two data directories (one for full blockchain, one for --fast opti...

Yes. Use --datadir for Geth. You just have to be careful not to mix up or forget specifying the --datadir whenever you run any Geth commands. This can also be used to have different testnets or pri …
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2 votes

Syncing for 5days, where is the end

My computer crashed 2 times Since your computer crashed, you are no longer fast syncing. So as crazy as it may sound, deleting the blockchain with geth removedb and restarting geth --rpc --fast …
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4 votes
Accepted

Where do I find the required information to create a new Ethereum implementation from scratch?

Indeed, the Yellow Paper (YP) is the way to proceed: https://github.com/ethereum/yellowpaper Known issues are at https://github.com/ethereum/yellowpaper/issues and is the place for filing new ones. …
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2 votes

What happens to eth.sendTransaction when the target account is offline?

Receiving ether is like receiving email: you don't need to be "on" to receive. One of the main differences is that everyone in the network has a copy of everything that's happened (all transactions, …
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3 votes
Accepted

JSON-RPC command to get blockchain synchronization status

For JSON-RPC there's eth_syncing: // Request curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' // Result { "id":1, "jsonrpc": "2.0", "result": { startingBlo …
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2 votes
Accepted

pyethapp is unable to add transactions to blockchain

Initially gas:90000 was too low. After increasing it, the receipt indicates that the transaction is now in the blockchain, block #2.
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9 votes
Accepted

Is there a quicker way than geth --fast to download the Ethereum blockchain?

This is a community wiki, with the hope that it can be updated by the community as developments take place. Here's latest from Ethereum Core developer Péter: karalabe [Ethereum] - Péter Szilágyi Hi, …
3 votes
Accepted

Where can I go if I still have problems with syncing the blockchain?

For Geth: https://github.com/ethereum/go-ethereum/issues https://gitter.im/ethereum/go-ethereum For the Ethereum Wallet or Mist: https://github.com/ethereum/mist/issues https://gitter.im/ethereu …
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1 vote

Geth Fast Sync imports blocks that have already been synced

I've seen this "looping" behavior in the past and I would suggest deleting the chaindata and then running geth --fast --cache=1024. The default datadir is: Mac: ~/Library/Ethereum Linux: ~/.ethereum …
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1 vote

Not syncing due to "unhandled trie error: missing trie node"

As there appears to have been some corruption, now that Avast is off, I would suggest deleting the chaindata and then running Mist again. The default datadir is: Mac: ~/Library/Ethereum Linux: ~/.et …
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