Linked Questions

95
votes
2answers
86k views

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 ...
71
votes
9answers
92k views

Help with very slow mist sync

I have seen other posts in reddit where users experienced slow sync times. I am using windows 10 and version 3.7 (I saw on gitter that other users on windows 10 had trouble with version 3.8 crashing). ...
37
votes
3answers
64k views

How to delete or reset the blockchain in geth? (OSX)

I have a currupt Blockchain and want to hard reset the chain. what do I need to delete in order to start downloading the chain from scratch? I know that there are 2 ethereum folders (I am on OSX): $...
23
votes
4answers
16k views

How can I empty the blockchain?

I am trying to do a fast sync using geth --fast but I am getting this message: blockchain not empty, fast sync disabled How can I empty the blockchain to allow for fast sync?
17
votes
5answers
13k views

geth import vs copying chaindata

I'm trying to sync my RPi 2 with the blockchain. geth import runs quite slowly, as well as syncing from scratch. What would be the problem in just copying the .ethereum/chaindata folder from ...
16
votes
2answers
10k views

How much faster is it to sync with --jitvm?

geth help has: VIRTUAL MACHINE OPTIONS: --jitvm Enable the JIT VM The impact of --jitvm has been unanswered and I'm looking for answers to these 3 specifically: How much faster is geth ...
12
votes
6answers
22k views

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

I had the Mist client installed, but it hadn't been updated in a few weeks so I tried renaming the chaindata folder (instead of deleting it) and downloading the blockchain with geth --fast as that is ...
6
votes
2answers
15k views

Ethereum Wallet downloading blocks - How to handle that memory size?

I'm syncing the Ethereum node for a while now. It almost finished, but I gradually need to delete files, because it'd barely fits my disk. I only have an iMac with a 256 GB SSD and ethereum takes like ...
6
votes
2answers
486 views

How much faster is it to sync the FULL blockchain with --cache=1024?

Running Geth with --cache=1024 is recommended to be able to sync the blockchain faster (since the default is only --cache=16. I want to have the full blockchain (all past transaction data) so do not ...
5
votes
2answers
3k views

Geth Fast Sync imports blocks that have already been synced

I keep having this problem where geth fast syncs normally importing headers and receipts (not blocks) up until a certain point at which it starts importing blocks that I had already synced a long time ...
4
votes
1answer
5k views

My geth node is taking ages to sync, can I still send ether?

It looks like I have to sync my blockchain at least until the block when my account was funded. Because as of right now the balance for my address is still zero. I'm runnig geth version 1.4.4-stable-...
3
votes
2answers
694 views

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?
3
votes
3answers
171 views

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 ...
3
votes
2answers
327 views

Mist is synchronizing extremely slowly on Linux Ubuntu 15.10. Any way to speed it up? [duplicate]

Mist is synchronizing extremely slowly on Linux Ubuntu 15.10. Any way to speed it up? Current info: Downloading block 1,081,182 of 1,521,138. It's downloading like a few blocks per minute, tops ...
3
votes
2answers
441 views

Migrating from TerstRPC to live testnet (Ropsten)

I have successfully developed my smart contracts in Solidity and the scripts using the web3 API to deploy them on the testRPC. Now, I would like to test on a testnet network: Ropsten. How can I ...

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