Questions tagged [go-ethereum]

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

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3
votes
1answer
132 views

atom-ethereum-interface returning different outputs from browser-solidity

I'm working on a proof-of-concept "email server" dapp and am getting different behavior in atom-ethereum-interface vs. browser-solidity I'm running a private blockchain in a Docker container with my ...
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0answers
83 views

Mist 0.8.5 & Geth 1.5.0

Current Mist is 0.8.5 and it runs geth 1.4.17. How can I initial geth 1.5.0 by Mist 0.8.5 without manually start Geth 1.5.0 first ? It's all to do with instruct geth that chaindata is on an external ...
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2answers
2k views

Float not allowed in solidity vs decimal places asked for token contract

We know that solidity doesn't support the float values. But here (https://www.ethereum.org/token#understanding-the-code) they accept one input parameter 'decimal places' for calculation purpose. How ...
2
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1answer
138 views

Are DAG files needed for non-mining nodes

DAG files are needed for Ethereum proof-of-work system: https://github.com/ethereum/wiki/wiki/Ethash-DAG However are these files necessary for non-mining clients e.g. geth full nodes that do not mine?...
3
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1answer
770 views

Account creation in private testnet vs mainnet

When we setup geth private testnet, we define one genesis file. Suppose after mining 100 blocks I want to create one more account. In this case I will update the alloc key of genesis file with new ...
6
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1answer
937 views

Geth unable to broadcast pending transactions

Been having issues since the last 2 or 3 days. Unable to get pendingTransactions mined despite Geth getting caught up to the latest block and having 25 connected peers. The transactions were created ...
5
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2answers
739 views

How could I update default homesteadBlock value on my private Ethereum blockchain?

I am trying to create my private Ethereum blockchain with homesteadBlock value that I want to assign. As I understand default homesteadBlock value is 1500000. [Q] How could I assign homesteadBlock ...
3
votes
1answer
527 views

Account import differs between eth and geth

I created an account with eth and ended up with a JSON file in the Web3 Storage Definition format. After backing up this JSON file, I am able to delete my .web3 directory and reimport this JSON file ...
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0answers
133 views

Can EthereumJ connect with geth in my private network?

I0908 10:55:59.650726 p2p/peer.go:301] Peer c944075180d7ede0 172.21.101.100:30303: Starting protocol eth/62 I0908 10:55:59.650903 eth/handler.go:252] Peer c944075180d7ede0 [eth/62]: peer connected [...
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2answers
183 views

Writing GBytes of data to disk, despite no network activity - what, precisely, is geth doing?

I'm watching geth 1.4.17 on Activity Monitor. Judging by the Network page, it's not doing anything. Rcvd Bytes is 5.9MBytes, and Sent Bytes is 2.6MBytes, and it's been that way for a while now. But ...
1
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1answer
235 views

Problems with Geth after installing Parity

I used to run a node on my Mac by simply typing geth console on the cli. However, I had to stop running geth about a month ago when the DOS attacks started. Last week though, I downloaded and ...
8
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1answer
552 views

No signer to authorize the transaction with

When trying to make a transaction on a boundContract with geth-api through the library of @karalabe. I am missing a way to get the signer. I only see the interface for signer in the aar but no way to ...
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0answers
70 views

Are not send transactions from coinbase account

i have a Ethereum-Wallet with 2 accounts. Transactions from first account(Main account (Etherbase)) not sending but incoming transactions working correctly. EtherWallet output: [2016-10-11 10:57:49....
2
votes
1answer
185 views

Is fast sync the reason why my ethereum wallet doesn't show the ether I got back through the DAO withdraw?

On block-explorers like ethersan.io I can see that the DAO withdraw worked and that ether was returned to my address. However my Ethereum Wallet (0.84 - Mac OSX using geth-node) shows my old balance. ...
7
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1answer
1k views

How to call Library Function from a Contract? => [error] The contract code couldn't be stored, please check your gas amount. undefined

When I compiled following code at "https://ethereum.github.io/browser-solidity/" it gives me two Web3 deploy code for: var libraryContract = web3.eth.contract(...); //Web3 deploy code var ...
21
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0answers
559 views

E/Go: fatal error: thread exhaustion

I am experimenting with the geth-android library with light-client and in-process node from @karalabe. I could successfully sync with the testnet node from @phonikg, unfortunately this one is down now....
3
votes
1answer
917 views

Connect ethereum node on host machine to docker cluster in VM

My setup is as follows: Windows host machine running an Ubuntu VM using virtual box. On the Ubuntu VM i'm running a private ethereum cluster using docker. This is working fine. I'm connecting them ...
1
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2answers
2k views

Multi node private local ethereum and send transaction

Have a 3-node local private cluster - Nodes A, B and M (miner). Added M as a peer to both node A and node B. When send a transaction transferring 1 ether from node A to node B - eth.sendTransaction in ...
3
votes
1answer
467 views

Do Geth and Parity nodes have the same txpool?

If I broadcast a transaction using a parity node, will it be more likely to be included in a block if the miner is also using Parity? or do geth miners have an equal chance to include the transaction?...
16
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1answer
6k views

What is the difference between a pending transaction and a queued transaction in the geth mempool?

I see the following on the wiki but I dont understand the difference pending: all processable transactions queued: all non-processable transactions
3
votes
1answer
512 views

DDOS attack against Ethereum

Ethereum project has become a victime of Ddos attack, slowing down the transactions and giving priviliges to attackers to mine blocks. So instead correcting bugs in geth or parity is there any robust ...
21
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3answers
6k views

What is knownStates?

I am using geth client (VERSION: 1.4.12-stable-421df866) to sync to the Ethereum testnet. To check the status of the sync, I ran web3.eth.syncing in the geth console. This is the output I see: { ...
2
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2answers
1k views

geth --testnet error:“could not open database”

I am new to Ethereum. I cannot seem to use the geth cli on the testnet. geth and the GUI (synchronized with the testnet) work, but when I try to to get --testnet, I get: dyn1237-76:eth1 sam$ geth -...
5
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1answer
2k views

How could I make Parity connect with my local Ethereum blockchain?

When I run ./parity under /target/release it automatically connects to the public Ethereum blockchain. (It starts syncing with the actual Ethereum blockchain of 900,000 blocks.) I want to connect ...
1
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0answers
41 views

'Mined block' icon in Windows cmd

It might be a trivial detail, but whenever I succesfully mined a block the pickaxe symbol is replaced by '▯▯' in Windows 10 cmd. Why is this? And is there a way to fix it?
21
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3answers
5k views

Why does ethereum creates a new block,without even a single transaction? [duplicate]

I'm running a private Ethereum blockchain. When I set one of the nodes to mine, that node continuously creates blocks, even if there are no transactions inside of it. What is the purpose of this?
23
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6answers
33k views

Insufficient funds for gas * price + value

Sending Address has over 1 Eth in current Balance. Using the Geth console, I can send many transactions of any amount less than .033 eth.sendTransaction({to:'...
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vote
2answers
3k views

How to check Balance of a specific account (MetaCoin)

I'm fairly new to programing and solidity, still on the learning curve of things here.... So right now I'm trying to check for the balance in Wei of the account I submit into the text field (Account). ...
3
votes
1answer
125 views

“DAO-Fork Check” Error When Running Geth in Terminal

I'm running Geth 1.4.15 (just released),and trying to sync the blockchain. For some reason, I always get this "DAO-fork dropping" error message when these spam attacks are occurring. I wanted to know ...
1
vote
3answers
142 views

how difficult is it to link an address to an account?

Every wallet can generate as many addresses as I want in order to obfuscate the origin and destination of transactions. But each account has exactly one key-pair and it is trivial to get the public ...
3
votes
1answer
3k views

what is the hardware requirement for miners in windows? [duplicate]

Are there any hardware requirements for using miners in windows? if yes, what are the requirements?
1
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1answer
938 views

What is JITVM in Geth?

What is JITVM, what it is used for and what is its relation with --fastflag? And also how is it different than EVM. Are they both same if not than what's the difference?
9
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2answers
991 views

geth: shh_newIdentity does not exists/is not available

I'm trying out whispers with web3 and geth on a private testnet. I'm just running the following code taken from Ethereum Whisper wiki. function sendWhisper() { var shh = web3.shh; var appName ...
0
votes
1answer
231 views

How does geth's --fast, --jitvm and --cache headers make blockchain download fast?

What does the --fast flag does? I read somewhere that it doesn't download transactions of the blocks rather just state downloads? But what are state downloads? What does geth use cache for? It can ...
3
votes
1answer
3k views

How to run your own bootstrap node in Ethereum?

How do I run my own bootstrap node? I mean how do I make my geth only provide peers information not the blockchain. And also how does geth know whether a node is a bootstrap node or regular node? Becz ...
9
votes
1answer
4k views

Difference between full node and bootstrap nodes in Ethereum?

I know that when a new geth instance runs it connects to the bootstrap nodes. What I want to know that do other nodes download blockchain from the bootstrap nodes or nor? Bootstrap nodes are highly ...
2
votes
1answer
1k views

How do I run the Ethereum Wallet software on a private chain?

I have read this post over and over again, but I can't wrap my head around the answer. I too have downloaded the Ethereum Wallet, but want to test some things separately from the main chain (I ...
1
vote
0answers
32 views

finding an address in a sharded ethereum

In the future, Ethereum shall be a network of blockchains, all joined by a common root. This will allow for performance improvements in addition to the use of the proof of stake consensus. Having a ...
3
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1answer
1k views

Geth --dev mode; define reward account for mining

If I set up a development testnet on geth and start mining, what account number gets the rewards? What command can I use to define the mining account? Console1: geth --dev Console2: geth --dev ...
5
votes
1answer
2k views

Launch Mist directly on Testnet

How can I bypass the full ethereum chain sync and open in testnet mode? I'm on a Mac. The full chain sync is taking too long and keeps crashing - all I want to do is test some contract functionality ...
3
votes
2answers
3k views

How to make a GUI with Geth

Actually, I'm not even sure if what I'm asking is possible. At the moment, I can run a script in the Geth Console which is creating contract in local. I would like to create a simple interface with 2 ...
2
votes
1answer
339 views

Problems setting two local nodes on the same computer

i'm setting two local nodes on the same computer as different users (two different sessions). The problem is that i can't make them be peers. Command to wake main node: geth --identity "MainNode" ...
6
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2answers
2k views

How to access all accounts across multiple nodes? JS/Web3.js/API

I'm running a private ethereum development network with 3 nodes connected to each other. Before asking my question, something about my setup. This is how I start those nodes: geth --networkid 2345 --...
2
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1answer
230 views

Set permissions to view variables

I am trying to create a smart contract or a combination of contracts thereof whereby one could set permissions to view variables that can be set in a contract on a private network. Consider an ...
3
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1answer
467 views

Can I use Ethereum's Whisper protocol to transfer files?

Here is an code example: shh.post({ "from": myIdentity, "topic": [ web3.fromAscii(appName) ], "payload": [ web3.fromAscii(myName), web3.fromAscii("What is your name?") ], "ttl": 100, "...
14
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1answer
11k views

Join mining pool with Geth

I followed this guide to set up aws to mine ethereum with an instance that has GPUs. After set up, I let the miner go for a day without any pay in the smallest denomination of Ethereum. I researched ...
5
votes
1answer
3k views

Deploying Smart Contract into Ethereum testnet

I have followed this guide https://ethereum.stackexchange.com/a/2787/2426 (or equivalently https://www.ethereum.org/greeter ) when trying to deploy a simple Smart Contract into Ethereum testnet. I am ...
1
vote
1answer
71 views

ETH-wall 8.3 synching sorta

synching is on and off, it says geth 1.4.10 and not 1.4.12, cant find the 1.4.10 in MACOS to delete so download run synched and yes i've tried the cd's in the console ELI5, or better yet how do I run ...
9
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4answers
3k views

Geth RPC connections securely

I have read everywhere that exposing personal over rpc is dangerous and is vulnerable. The question is HOW? Is it possible for anyone to send transactions to my geth console, if my ipaddress and port ...
4
votes
1answer
440 views

Geth 1.4.12 not finding any peers on Ubuntu 16.04 LTS

I am trying Linux for the first time and try to run Geth 1.4.12 but it can not find any peers. UPnP works fine, the clock sets itself correctly and the firewall is disabled. Do you have any idea ...

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