I'm using git for version control but I'm currently lacking a good issue/bug/ticket tracker with Eclipse Mylyn integration. The features I'm looking for: Open source implementation (so that I can add the features I need in the future. GPL, LGPL, MIT or BSD license preferred). Distributed (the issues must be stored in git the repositor...
this time someone should please relpy i am struggling with running my code using distributed cahe. i have already the files on hdfs but when i run this code : import java.awt.image.BufferedImage; import java.awt.image.DataBufferByte; import java.awt.image.Raster; import java.io.BufferedReader; import java.io.ByteArrayInputStream; impor...
I have multiple servers containing the same table schema, but each responsible for a portion of the overall data... No one machine needs to contain all the data. Each machine only contains data relating to its department. Is there a central database server which will contain all the data, or just a central db server which can be used t...
I'm working on a turn-based web game that will perform all world updates (player orders, physics, scripted events, etc.) on the server. For now, I could simply update the world in a web request callback. Unfortunately, that naive approach is not at all scalable. I don't want to bog down my web server when I start running many concurre...
Hi, I need to setup a file distribution system between different sites of a WAN. Files that are dropped into some input directories on the source machine should be distributed into a directory on each of the target machines at other sites. One of the requirements is that between certain sites the only allowed traffic is SMTP. There is a...
I've been recently playing around with distributing our testing load across multiple machines (and multiple cores) over the network. I've tried out: SpecJour http://github.com/sandro/specjour This worked pretty well and was really easy to set up. Reduced out testing time by about 30% across 4 machines (8 cores) However, I really li...
if a db "A" created at site alpha then also schema copied at site beta which is 50 to 100 of miles away but still data in both is same and must be in syc. will it be called a distributed database or would it be wrong? EDIT why is it not distributed? its related, what does it need to be called distributed? same schema different da...
. A distributed database is a collection of multiple, logically interrelated databases distributed over a computer network. Sometimes "distributed database system" is used to refer jointly to the distributed database and the distributed DBMS. please can any one give a simple yet clear example of "multiple logically in...
Occasionally, I get following exception when running my Java EE application with Glassfish: Error in allocating a connection. Cause: java.lang.IllegalStateException: Local transaction already has 1 non-XA Resource: cannot add more resources. The application uses a single JDBC connection pool that is not XA-capable. However, I was not...
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...
Are there any existing libraries/frameworks/products for a distributed shared memory system implemented in .NET, or easily accessible from .NET clients? Googling gives some links to academic papers, but I couldn't find any real implementations. Note: I am most interested in something that runs on a LAN, not in "cloud". ...
a few basic questions, using vs08 c# and sql which oracle version should i download? oracle10g? does it have a disgn interface like sql server mangement studio.? will this distribution concept have a graphical tool which say "hi, on which servers would you like to distributed the database and on what basis? using a local applicat...
I'm looking into Paxos and I'm confused about how the algorithm should behave in this contrived example. I hope the diagram below explains the scenario. A few points: Each agent acts as a proposer/acceptor/learner Prepare messages have form (instance, proposal_num) Propose messages have form (instance, proposal_num, proposal_val) Se...
I need a deterministic random number generator that maintains some sort of distribution (e.g. uniform or normal) that works over a cluster. Boost::Random fulfils most of these requirements. Is there any way I can use it in a cluster while maintaining the distribution? If there was an efficent way to advance the the number generator thi...
Hi. I'm working on a project, creating a distributed client/server webcrawler. I've looked into heretrix/grub/boinc/etc... I'm looking to find a couple of people who are relatively skilled in this area that I can talk to, discuss some issues with. If you know of a good architecture that discusses both the client/server side issues, o...
Hi everybody, I have thought a bit about making a somewhat lightweight consistent-hashing-like PHP function to shard uploaded files between different servers. Obviously, rand() would work to distribute the files among the servers somewhat evenly, but when requesting the files, no one will know which file lies on what server... I know ...
Most interested in peer-to-peer solutions - without central server. So, I imagine it like a library that brings to my application a functionality of transparent cache management with feature of remote instances synchronization. It should support cache record timeout and forcing invalidation. UPDATE: If not completely peer-to-peer - at l...
I am looking for a way to make distributed computing over a network (lan). Is there any good framework or a library for this purpose in C/C++. ...
Hi, Do you know any good reference about testing distributed systems? It could be about main types of test for distributed systems, major tests, who are the main authors about it ... Thanks for any help, Giovanni ...
I want to practice programming on a distributed cluster and I would like to not have to pay. I know about Amazon EC2, but it is not free up to a certain usage kind of thing. Is there anything like this? ...