distributed-computing

What are some good interview questions for Distributed Systems?

For a job that has a bend for distributed systems, what would you ask the candidate? Easy, intermediate and advanced questions are all welcome. I don't have specific requirements for the job. General questions are fine. On top of my head I can think of: Advanced (?) 2-phase commit protocol 3-phase commit protocol ...

Open distributed computing research questions/topics?

Hej, I recently read a lot of papers from Lamport, Fischer, Lynch, Brewer to get a feeling for their perspective of distributed systems. I was wondering, what are current open distributed computing research questions/topics? Many areas from databases, communication, fault-tolerance, number crunching, etc. seem to be tackled and in quit...

what is single-node programming models

I am reading some article about pervasive computing, and lots of place mention about "single-node programming models" in distributed computing. i try to search "single-node programming", cannot really find something that i can understand. So does anyone anything about this programming model... I just want to know what is it. and how i...

Book recommendation on distributed computing concepts used in Cassandra

What book would you recommend on distributed computing concepts/database internals such as the ones used for Cassandra, the concepts are listed here: Cassandra glossary? Thanks! ...

web indexer using java

is parallel system or distributed system is good for web site crawler and web indexer which is develop in JAVA,if so which are the available frameworks? ...

one program runs on multiple JVMs?

I know that MPI does it, also heard that Erlang has nice support for this. But is there any similar frameworks/languages on JVM? I need to run one program distributed on multiple machines transparently. Thanks, ...

Boost::Signals encapsulation over network

I am currently involved in the development of a software using distributed computing to detect different events. The current approach is : a dozen of threads are running simultaneously on different (physical) computers. Each event is assigned a number ; and every thread broadcasts its detected events to the other and filters the releva...

Distributed Computing application in Azure provided as a web-service to desktop View application

Is is possible for an Azure application to offer a service to end-users for carrying out long-running computation tasks that are going to be distributed over multiple Workers (with persistent storage)? And would it be possible to provide this through a web-service that is accessed by a desktop .Net application (the View) or do you alway...

Using Cloud/Distrubted computing to share processor time - possibilities and methods

My question is one I have pondered around when working on a demanding network application that would explicitly share a task across the network using a server to assign the job to each computer individually and "share the load". I wondered: could this be done in a more implicit manner? Question Is there a possibility of distributing p...

Joining very large lists

Lets put some numbers first: The largest of the list is about 100M records. (but is expected to grow upto 500). The other lists (5-6 of them) are in millions but would be less than 100M for the foreseeable future. These are always joined based on a single id. and never with any other parameters. Whats the best algorithm to join such list...

error in reading R file while submitting a r job to condor

Hi Everyone, I have a R Job that is submitted to the condor, The R file(one.R) which is submitted to the condor is reading another R file(two.R), when I submit the job to the condor its is failed and the reason for that is the submitted R(one.R) file is not reading the called R file(two.R) Error in text file is : Error in file(file, "r...

Natural distributed computing using .NET TPL

I am developing an application that has the potential for massive parallel processing. Currently, I am using a single PC with 8 cores, but I need to support distributed computing. TPL Constructs such as PLINQ and Parallel.ForEach could be used to naturally distribute work load between different threads. How could they be made to distrib...

Jikes RVM as distributed compiler

Can we use Jikes RVM as distributed compiler? Thanks Rahul ...

Preparing for a Masters degree in Distributed Systems

I am planning to take a Masters degree from my university in Networks and Distributed Systems. Though I am not sure whether I will be accepted or not, I had like to prepare for it before hand. The only thing I know about distributed systems as of now is all that I read in Tanenbaum's Modern Operating Systems book (which I totally loved b...

Explaining Apache ZooKeeper

I am trying to understand ZooKeeper, how it works and what it does. And I am totally confused. Is there any application which is comparable to ZooKeeper? If you know, then how would you describe ZooKeeper to a layman. (Considering I am one) I have tried apache wiki, zookeeper sourceforge...but I am still not able to relate to it. Any ...

setting up a distributed computing network

I need a lot of computing power for a new scientific application I built. As I am on a budget, and since the app requires lots of CPU but little memory (400MB), a friend recommended that I buy many "old" machines (Pentium 4, 3Ghz, 1GB memory) and use them to run instances of my application (every app instance is independent of one anoth...

Automatic provisioning of xen in private cloud

I am setting up private cloud for some experiments using xen as the hosting system. But I am faced with a problem for which I can't seem to get solutions. I have to do some kind of automatic provisioning of VMs given the server load. Eg: if server of type A gets to lets say 60% load the cloud should spawn off another vm instance of the ...

Good Open source avenues to work on OS / low level distributed system stuff.

Or rather, if I'm reading "Understanding the Linux Kernel" and more of Linux/OS level or more low level dist. computing stuff, what kind of open source projects are worthing taking a look at - except of course the Linux distros. Thanks Ajay ...

Are Multi-Agent Systems just hype?

As a researcher I am curious to hear what people think of Multi-Agent Systems if of course you came across the whole idea. Do you believe there is something more in there than just a hype and another buzzword? Can you see any potential uses in business or everyday computing? Or do you think that we can already achieve everything MAS has ...

How Polling mechanism can be realized with RMI?

Hi! Following the design/architecture i created for multiuser/network turn-based game with RMI server callbacks, I have tried to create a distributed animation in which my model(Ball) is remote object and it updates the clients via callback mechanism from server. The current situation of code is : The model remote object, which is it...