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• DRY Authenticated Tasks in Cocoa (with distributed objects)

  - by arbales

  I'm kind of surprise/infuriated that the only way for me to run an authenticated task, like perhaps sudo gem install shi*t, is to make a tool with pre-written code. I'm writing a MacRuby application, which doesn't seem to expose the KAuthorization* constants/methods. So.. I learned Cocoa and Objective-C. My application creates a object, serves…

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• What is lightweight lock in distributed shared memory systems?

  - by Kutluhan Metin

  I started reading Tanenbaum's Distributed Systems book a while ago. I read about two phase locking and timestamp reordering in transactions chapter. While having a deeper look from google I heard of lightweight transactions/lightweight transactional memory. But I couldn't find any good explanation and implementation. So what is lightweight…

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• Where do you earn more money (Autonomous Systems vs Distributed Systems)? [closed]

  - by Puckl

  I am interested in both topics and I can choose between them for my computer science master. I think the distributed systems master focuses more on software technologies and the autononmous systems master is focused on robotics and machine learning. Do you get good jobs in the fild of machine learning without a Ph.D.? I guess there are…

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• SOA and distributed transactions

  - by Bermo

  When do distributed transactions make sense in a service-oriented architecture?

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• Is Terracotta a distributed cache?

  - by Derek Mahar

  Is Terracotta a distributed cache? Why or why not?

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• Distributed, persistent cache using EHCache

  - by Richard

  I currently have a distributed cache using EHCache via RMI that works just fine. I was wondering if you can include persistence with the caches to create a distributed, persistent cache. Alongside this, if the cache was persistent, would it load from the file store, then bootstrap from the cache cluster? Basically, what I want is: …

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• Simplest distributed persistent key/value store that supports primary key range queries

  - by StaxMan

  I am looking for a properly distributed (i.e. not just sharded) and persisted (not bounded by available memory on single node, or cluster of nodes) key/value ("nosql") store that does support range queries by primary key. So far closest such system is Cassandra, which does above. However, it adds support for other features that are…

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• Framework or tool for "distributed unit testing"?

  - by user262646

  Is there any tool or framework able to make it easier to test distributed software written in Java? My system under test is a peer-to-peer software, and I'd like to perform testing using something like PNUnit, but with Java instead of .Net. The system under test is a framework I'm developing to build P2P applications. It uses JXTA…

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• Reliable test for MSDTC promoting transactions to distributed?

  - by Oded

  How can I reliably check that MSDTC has promoted a transaction to a distributed transaction, from .net code? Currently a co-worker is testing this by shutting down the coordinator on his machine - if an exception is thrown this is taken as evidence that an attempt to promote the transaction has occurred. Is this a valid test?

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• Where do I start with distributed computing?

  - by folone

  I'm interested in learning techniques for distributed computing. As a Java developer, I'm probably willing to start with Hadoop. Could you please recommend some books/tutorials/articles to begin with?

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• technologies beside scaling web applications in a distributed nature

  - by wik

  Hello, I am interested in theory to scale web applications in a distributed nature, i.e. when there is some platform/stack can be extended by others applications running on different servers, etc. I am researching this field and feels the lack of the right keywords :) Interesting concepts found so far: opensocial through API,…

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• distributed system programming with php

  - by ranganaMIT

  Hi guys, I'm doing a system for a hospital in my country as the final year project of my degree, my supervisor specially asked me to use php and mysql for this. i don't have any experience with distributed systems and php programming, can any one help me out to build my base and improove my knowledge stating some sites, books to…

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• Jboss Cache as distributed state repository

  - by michael lucas

  Is using JBoss Cache as distributed state repository a good idea? Can JBoss Cache be applied in situation when you need the guarantee that each time you read something from repository you get the newest version of it? - and irrespective of which node in a cluster we consider?

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• Why is TransactionScope using a distributed transaction when I am only using LinqToSql and Ado.Net

  - by Ian Ringrose

  We are having problems on one machine, with the error message: "MSDTC on server XXX is unavailable." The code is using a TransactionScope to wrap some LingToSql database code; there is also some raw Ado.net inside of the transaction. As only a single sql database (2005) is being accessed, why is a distributed…

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• Unit test distributed software

  - by user262646

  Is there any tool or framework able to make it easier to "unit test" distributed software written in Java? My system under test is a peer-to-peer software, and I'd like to perform testing using something like PNUnit, but with Java instead of .Net.

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• PHP SoapClient: Problems with Distributed WSDL File

  - by Dave

  Hello, I have a problem using a distributed WSDL File ( scheme / other definitions are declared outside the actual wsdl) with php's SoapClient. This is the Fault Message I get: SOAP-ERROR: Parsing WSDL: 'getSomeInfo' already defined. After some googling , it seems to be a bug inside php as someone else discovered…

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• How to make distributed builds using XCode 3.2 on OS X 10.6

  - by Sorin Sbarnea

  After I upgraded using a clean install from OS X 10.5 to 10.6.2 and upgraded the XCode to 3.2.1 I wasn't able to use distributed builds feature anymore. There are several issues that I detected: In most cases Bonjour is not detecting the other computers even they are on the same switch. I added a custom 'set' where…

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• What grid distributed computing frameworks are currently favoured for trading systems

  - by Rich

  There seems to a quite a few grid computing frameworks out there, but which ones are actually being used to any great extent by the investment banks for purposes of low latency distributing calculation? I'd be interested to hear answers covering both windows,Linux and cross platform. Also, what RPC mechanisms seem to…

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• Enumerating combinations in a distributed manner

  - by Reyzooti

  I have a problem where I must analyse 500C5 combinations (255244687600) of something. Distributing it over a 10 node cluster where each cluster processes roughly 10^6 combinations per second means the job will be complete in about 7hours. The problem I have is distributing the 255244687600 combinations over the 10…

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• Distributed development systems

  - by Nathan Adams

  I am interested in a system that allows for distributed development with an authentication piece. What do I mean by that? Ok so lets take SVN, SVN keeps track of revisions and doesn't care who submits, as long as you have the right to submit you can submit, really, to any part in the repository. Where does my…

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• Distributed Lock Service over MySql/GigaSpaces/Netapp

  - by ripper234

  Disclaimer: I already asked this question, but without the deployment requirement. I got an answer that got 3 upvotes, and when I edited the question to include the deployment requirement the answer then became irrelevant. The reason I'm resubmitting is because SO considers the original question…

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• Distributed Cache with Serialized File as DataStore in Oracle Coherence

  - by user226295

  Weired but I am investigating the Oracle Coherence as a substitue for distribute cache. My primarr problem is that we dont have distribituted cache as such as of now in our app. Thats my major concern. And thats what I want to implement. So, lets say if I take up a machine and start a new (3rd) reading…

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• Experience with MooseFS?

  - by brown.2179

  Anyone have any experience using MooseFS? I want an easy distributed storage platform to store static data archive of about 10 TB and serve it to 20-40 nodes. Also I want to be able to add storage as the archive grows without having to rebuild the filesystem. I don't care if it's a bit slow. I just…

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• Oracle Fusion Distributed Order Orchestration

  Designed from the ground-up using the latest technology advances and incorporating the best practices gathered from Oracle's thousands of customers, Fusion Applications are 100 percent open standards-based business applications that set a new standard for the way we innovate, work and adopt…

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• Experience with MooseFS?

  - by brown.2179

  Anyone have any experience using MooseFS? I want an easy distributed storage platform to store static data archive of about 10 TB and serve it to 20-40 nodes. Also I want to be able to add storage as the archive grows without having to rebuild the filesystem. I don't care if it's a bit…

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