Questions tagged [go-ethereum]

Go Ethereum (short: Geth) is a Golang implementation of the Ethereum protocol.

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Is smart contract data valid if i access the contract data in ethereum node which is not synced?

Is smart contract data valid if i access the contract data in ethereum node which is not synced yet to latest block? EDIT: By valid, i meant, consider this scenario: if i have a the smart contract ...
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0answers
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if --fast is used to sync geth in ethereum node, can it be used for mining? [duplicate]

using --fast does not download the full blockchain only the blockheaders ,then if --fast is used to sync geth in ethereum node, can it be used for mining?? will it mine same as a node synced normally?...
3
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1answer
958 views

size of blockchain on hard disk for ethereum light clients

whats the size of block headers ( minified blockchain) that ethereum light clients are using? how much is the size of the blockchain data required for the light clients to do a transaction and veryfy ...
4
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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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2answers
4k views

Port 30303 error in Mist when I run geth with a different datadir

I run geth with the following command. When I try to start Mist I get an error 30303: bind: address already in use. Why and how can I fix it? This is the command I use to run geth: geth --datadir /...
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2answers
282 views

Is it possible to modify this command to use with the console in Geth?

I use this command because it allows me to sync the Geth blockchain to an external SD card rather than to the internal hard drive: geth --datadir /media/user/sdcard/chaindata --ipcdisable However, ...
17
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1answer
4k views

Instrumenting EVM

I need to get all contract internal transactions. To do it, I'll need to instrument Ethereum EVM. My question is: what I should do to get the transaction details? Right now, I'm looking to the code ...
3
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1answer
1k views

Cannot mine on Ubuntu 14.04

I've been trying to start mining on an Ubuntu 14.04 machine for two days now but I just can't make it work; there are no error messages or anything but the behaviour is very weird: I've tried mining ...
2
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2answers
672 views

Cannot send ETH or DAO via Ethereum Wallet (Mist)

I have DAO and ETH in my Ethereum Wallet. Every time I try to send it, I input my password and press send, and it sits there saying "confirming" for a few minutes. Eventually, it just reverts back to ...
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0answers
42 views

I want to change the default download location of the chain data to an SD card instead of the internal hard drive. How can I go about it? [duplicate]

I want to change the default download location of the Geth chain data from the internal hard drive and use an SD card instead. How can I go about it? OS: Ubuntu 15.10. The hard drive is kind of ...
5
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1answer
985 views

How do I transfer from The DAO to an exchange using Linux and geth from the terminal?

I don't want to use Mist to interact with the DAO. How do I do it from geth instead?
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Is it possible to use the Geth Console and turn off syncing entirely? [duplicate]

Is it possible to use the Geth Console and turn off syncing entirely? If there is a JS command or another way to make the Geth Console turn off syncing entirely while still being able to use the ...
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2answers
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How can I view The DAO proposals including the current voting status?

The EtherScan.io website provides a page for The DAO proposals. This page does not provide the current voting status. How can I view The DAO proposals including the current voting status?
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4answers
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“potential rewrite attack” message on Geth

When I was sending Ether using Mist I got the following message on Geth. I0528 18:34:57.312997 core/blockchain.go:959] imported 1 block(s) (0 queued 0 ignored) including 3 txs in 19.344963ms. #...
5
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1answer
142 views

How to enable vi mode in geth console? (readline's inputrc not honored)

Does the geth console input prompt use the standard readline library? For apps that do, setting in ~/.inputrc: set editing-mode vi enables vi mode on the command prompt. For example, try $ python ...
5
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1answer
99 views

Why do I see some random transactions to “The DAO” in my mist client?

I am curious to know, why I do see some random transactions of "The DAO" in my mist client within my "last transactions" section. I have actually two of them yet: Is it because I watch my Tokens?
4
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2answers
2k views

Delete Wallet AND disable Wallet address

How can I delete my Wallet (deleting the Wallet file) AND disable the blockchain address to prevent accidential money to be send and lurking there forever without access for anyone? Thanks
3
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2answers
419 views

What are the incentives of holding ETH if developers and businesses can issue their own cryptocurrency for use in their Dapps running on Ethereum?

Will these new Ethereum based cryptocurrencies be able to transact freely between fiat and other cryptos outside of Ethereum? Or would they be able to only convert between ETH? The only way ETH ...
3
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1answer
344 views

filter for non-contract addresses?

If I set up a filter to receive changes, I only seem to receive transactions for addresses that are contract addresses. How to put a filter to receive transactions that are sent to an address that is ...
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2answers
4k views

geth RPC API to check if geth is running in testnet or mainnet?

Simple question: is there a way to query geth to know if it was launched with --testnet flag or not?
4
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3answers
627 views

ClamAV finds eicar in chaindata ldb and quarantines file

What would happen if one of the .ldb files from the mist chaindata was deleted, i.e. /Users/yourname/Library/Ethereum/chaindata/060540.ldb was removed. One of the ClamAV engines found a test virus ...
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0answers
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Ethereumj client and go-client [duplicate]

I started exploring the both the clients (go client and the EthereumJ) and saw the folder structure both of the client generates are so very different. For example the go client would have the ...
5
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1answer
245 views

How to retrieve The DAO proposals using geth?

I'm using Node.JS with Web3 interface to a Go Geth server. I'm trying to get proposals in both TESTNET and LIVENET but I'm unable: What I've done so far: I'm using Node.JS I've got the .abi ...
1
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1answer
434 views

why contracts can't be deployed on my private chain using geth CLI?

I tried to use the geth CLI(the eth.contract command line) to deploy a new contract to my private chain, but why is there no response even no transactions received by the chain according to the log ...
3
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2answers
702 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?
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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 ...
2
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1answer
1k views

geth --dev exposes live net accounts. Is it safe?

Running geth console with and without the --dev option seems to expose the same accounts. Is it safe to use same accounts when developing? If not, what is the recommendation?
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1answer
3k views

How to check the VM trace using Geth?

How to check the VM trace using Geth? I've ran geth with --verbosity 6, and stuff like this gets logged: I0525 01:26:12.418607 core/vm/vm.go:157] running byte VM b82addc7 I0525 01:26:12.419818 core/...
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2answers
439 views

How can developers test time-dependent contracts?

I'm working on a revenue distribution contract that lumps eth by week. In order to test it, I need some way to set the now variable. Is there any way to do that? Using solidity/geth.
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0answers
113 views

slow start of block synchronization in geth [duplicate]

What can I improve or debug to find causes of a delayed start of the block synchronization in geth? I am running the latest geth (1.4.5-stable-a269a713) on Ubuntu 15.10, I noticed this behavior ...
5
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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 ...
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0answers
51 views

admin.chainSyncStatus API doesn't work? [duplicate]

I've found a good API I want to use to see if my geth is in sync: admin.chainSyncStatus. However, when I call it through web3/nodejs, I get this error: /home/myuser/Documents/Code/Crypto/...
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3answers
18k views

how do you know your db is synced in geth?

In order to answer this question there is a need to get the timestamp of when the database is synced with geth. I can think of two ways of doing that : find the 1st occurrence of 1 block in the geth ...
2
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1answer
2k views

Downloading full blockchain again after using geth --fast on 0.7.4 [duplicate]

I've downloaded the newest mist browser on a new pc and used geth --fast. After fully syncing (which was about 1,5 hours) the syncing started from 0 again, but this time slow, downloading the whole ...
6
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2answers
491 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 ...
3
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1answer
872 views

What optimizations does Geth's --jitvm do?

geth help has: VIRTUAL MACHINE OPTIONS: --jitvm Enable the JIT VM --forcejit Force the JIT VM to take precedence --jitcache "64" Amount of cached JIT VM programs What ...
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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 ...
2
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2answers
395 views

Buliding geth from source does not make Solidity available

I've made a fresh install of go-ethereum from source on Ubuntu and Fedora, launched it and expected to find Solidity available when doing eth.getCompilers(), but I get an empty list instead. I have ...
21
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2answers
6k views

Is there a way to stop the Geth console from printing syncing information?

Is there a way to stop the Geth console from printing syncing information? I start Geth with geth console. Actually, I do not want to see all that syncing information constantly. Can I turn it off ...
4
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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-...
7
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1answer
2k views

What is Geth's JIT VM?

Whilst downloading the blockchain which has taken me approximately a week to get to block 1.09 mil, I received a message from geth.exe after a reboot around 1050999 -1060888 You're one of the lucky ...
3
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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 ...
8
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1answer
2k views

How to change verbosity without restarting geth? (admin.verbosity undefined)

Documentation of console API advertises admin.verbosity, but my node says it's undefined in Geth/v1.4.4-stable-8ea3c88e/linux/go1.6.2. So, how to change verbosity without restaring the node with a ...
5
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2answers
622 views

Geth private testnet: what's wrong?

I have downloaded geth and ethminer, and started running a testnet with 2 nodes - 1 mining and the other not. Here's my (noobish) problems: If I submit a txn to my non-mining node, it won't get ...
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0answers
25 views

Is there an easy way in the Geth console to see the current numbers of blocks in existence? [duplicate]

Is there an easy way in the Geth console to see the current numbers of blocks in existence? Same as "best block" at ethstats.net. I tried admin.chainSyncStatus but it just returns 'undefined'
36
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2answers
53k views

how to unlock the account with geth?

when I use the web3 interface to sign on msgs, it tell me that the account should be unlocked, how can I manage this with geth and what exactly does unlocking mean?
3
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0answers
278 views

Unable to receive ether in testnet account [closed]

I have set up a test net account using the ethereum wallet on my PC. I have left my miner on in the test environment for several hours and failed to mine test ether. I have also tried getting ether ...
5
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1answer
1k views

How to make synchronous web3.js function calls?

I am using the web3.js library directly in HTML, not via Node.js to interact with my local geth node. The following code gives me an error (web3.min.js:2 Uncaught TypeError: e is not a function) when ...
9
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1answer
2k views

Link solc with geth problem

After upgrading to geth 1.4.4 I am no longer able to from to reference the compiler from geth. The solc compiler is installed in /usr/local/bin but this is what I get when I check for available ...
7
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2answers
4k views

Sync blockchain while mining?

I'm new to ether mining. Do I have to sync with the blockchain while mining? Currently I'm using ethminer for solo mining with GPU and geth to sync with blockchain.

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