Questions tagged [distributed-apps]

21 questions
9
votes
1 answer

How to distribute applications across nodes without having to start all applications as part of the Distributed Hand-shake

Background I have an application that is auto-started when a node is started (using .rel, .boot, etc.) I want the application to fail-over to alternate nodes if a first node goes down. I use Erlang's Distributed Application capability to handle…
Jr0
  • 2,131
  • 13
  • 23
2
votes
1 answer

How to persist data after deployment in Solidity

I am pretty new to Solidity and working with Ethereum in general. In the (d)app I'm working on I need to be able to persist data onto the ledger, but I'm not sure I understand how this works. Let's say I have the following contract (simplified for…
Karim Stekelenburg
  • 633
  • 12
  • 26
2
votes
2 answers

how can i make dapp work on regular browsers?

I am trying to work on a dapp using Ethereum that works well for the normal end user (works on regular browsers like Ethereum without Metamask), is there a way to do that?. and how did https://stampd.io did it? Thanks
2
votes
4 answers

Framework Recommendation for developing distributed iPhone / iPad applications

Is there a distributed application framework (commercial is okay as well) that supports iPhone / iPad ? What I'm looking for in the framework: Allows me to focus on the application logic I don't have to code "low-level" network programming (I've…
sivabudh
  • 31,807
  • 63
  • 162
  • 228
2
votes
2 answers

Finding the time taken to send messages with WCF net.tcp

I’m writing a prototype WCF enabled distributed app, to try and find out any issues I’ll have upgrading my existing “sending xml over tcp to communicate” apps I’ve got. I’m using Callback Contracts to register clients with a server (Singleton in…
Rob Gray
  • 3,186
  • 4
  • 33
  • 34
1
vote
0 answers

How to code off chain smart contracts in blockchain?

I am coding a Dapp that uses Zero Knowledge proofs. All I want to do is write that zero knowledge proof as a off chain smart contract to reduce the gas consumption. How to code such a contracts. for example, doing a private transaction offchain and…
Vinay
  • 111
  • 1
  • 7
1
vote
2 answers

Start with remoting or with WCF

I'm just starting with distributed application development. I need to create (all by myself) an enterprise application for document management. That application will run on an intranet (within the firewall, no internet access is required now, BUT is…
Sheldon
  • 2,598
  • 10
  • 27
  • 36
0
votes
0 answers

Hyperledger Besu NullPointerException on permissioning dapp removing a node

We are using onchain permissioning on a private network with Hyperledger Besu, but when we remove a node, we get a NullPointerException: ERROR Unhandled exception java.lang.RuntimeException: Error building payload to call node permissioning smart…
0
votes
1 answer

Large user data and request handling in Corda

I am making a Cordapp to store User data as states in Corda. I am expecting around 1000-2000 rpc users to user this Cordapp. Will Corda be able to handle such a load? What all things should I keep in mind while writing the Cordapp ton handle the…
Kshitiz Sharma
  • 722
  • 6
  • 14
  • 34
0
votes
1 answer

Where can I find console log of lite-server?

I’m now developing a simple Dapp using Truffle. When command npm run dev is submitted, the console mode changes as below. Therefore, even though “console.log(message for debug here)” is written in JavaScript file of Dapp, I cannot receive the log…
user46556
  • 1
  • 1
0
votes
1 answer

Java SimpleClient & SimpleServer Sending Commands Being Weird

Hi Stackover flow world, Thought I'd send something over as I haven't shared a question in some time. I've been pretty stumped on the weirdest, possibly simplest question ever, that I've been finding all sorts of different responses online.…
Arsalan Khalid
  • 246
  • 1
  • 4
  • 15
0
votes
1 answer

Getting new BigNumber() error when calling a function in solidity using truffle. How do I fix the error?

I get this error when I try to call my solidity function using truffle. My solidity code is as : pragma solidity ^0.4.14; contract SimpleDemo { function returnNumber () public view returns (uint) { return 500; } } The way I'm…
0
votes
1 answer

Solidity - EVM Invalid JUMP when using webpack app

I am creating a frontend app based on Truffle + Webpack, following this tuto : http://truffleframework.com/tutorials/building-testing-frontend-app-truffle-3, and have no uderstanding of JavaScript at all. The code works on truffle console and the…
Alex Sala
  • 1
  • 1
0
votes
1 answer

Can registry and interface objects for java RMI be declared static globally?

I seem to have a dilemma. Sparing the complicated details of my project, i'm attempting to do the following. (excluding and replacing some code like imports and try-catch for simplicity) 1 public class Client 2 { 3 private Registry reg1; 4 …
Gabe879
  • 1
  • 1
0
votes
1 answer

can i use springsmvc + ejb + hibernate for distributed application?

can i use the combination of springs mvc + EJB + Hibernate for my application. My application is a distributed application. So is this combination suitable for my application? I want to develop an distributed application and have started the gui…
Monica
  • 1
  • 2
1
2