I'm going to build a high-performance web service. It should use a database (or any other storage system), some processing language (either scripting or not), and a web-server daemon. The system should be distributed to a large amount of servers so the service runs fast and reliable. It should replicate data to achieve reliability and a...
I want to have groups of 2-4 users playing a game that will require each user send to the others about 10-20 bytes of info every 1-3 seconds. So basically, low bandwidth usage, but low latency required. So I would like to have my own server/cluster of servers to support this communication, e.g. starting with 1000 users simultaneously and...
I am looking for a library that will allow an arbitrary group of computers to participate in a "cluster", where I'm using that term to mean a group of systems in which: the systems are able to automatically discover each other, the systems engage in a master election process to determine the cluster master the systems will re-elect a n...
I have some legacy scientific code running on a Rocks cluster, with SGE. I have an application-specific job submission script that generates qsub scripts (i.e. the script which Sun Grid Engine takes and runs). Within the qsub script, my legacy app is called. This app sends it's output to STDOUT. SGE intercepts STDOUT and spools it into ...
I have an x86-64 computer running Linux that I would like to supplement with other non-x86-64 Linux machines. Is it possible to somehow benefit from the computational power of another machine without it being the same architecture? As a second question, what kind of performance increases are available and does it require specialized so...
Hi, I try to ask my question here because nobody on paraview mailing-list answered until now. I try to get a tiled display to work with ParaView, so here is my setup: I have 3 Windows XP machines each equiped with graphic cards. Each graphics card is connected to a monitor, so I want to get my ParaView output on that three monitors. I ...
I'm trying to work out whether we should try out Condor or Sun Grid Engine at work (or possibly something else). We often have lots of unused WinXp workstations. The hope is that we could use wake-on-LAN, run all our jobs, and then shut down automatically. We'd mainly be running Matlab, Java or Python simulations for either monte-carl...
Hello, I have a content management system running on a web server, that among others allows the user to upload assets like images, files, etc to the server. The problem i have is that there will be 2 servers running behind a load balancer and i am trying to find an efficient way to handle the assets management. The question i have is: ...
I have five nodes behind a load balancer and I'm trying to determine the optimal configuration for a Django based site. Each node has access to Postgres, mod_wsgi, Apache, Lighttpd, memcached, pgpool2 (for database replication) and glusterfs(for media file replication) and is running Ubuntu 8.04LTS. So far, the setup is four nodes runn...
I use a visualization software as a parallel MPI (MPICH2) program running on a cluster to drive a tiled display (ParaView). The OS is Windows XP. Each node in that cluster has two graphic cards. To each graphic card one monitor is connected. The first monitor is for administrative usage. The second monitor (output) is connected to a beam...
Hi, from the extense list of Quantum and Molecular Dynamics packages, which ones can be easily "interconnected" to a cluster which works with the queueing systems PBS and Sun Grid Engine? Or is it there some program or method that allows "packing" all jobs in a PBS or SGE way? Thanks ...
Hi, I want to implement NDB cluster for MySQL6. I want to do it for very huge data structure min 2 milioon databases But I want to know is there any limitations of implementing NDB cluster. eg-> RAM size, or is there any limitation on creating number of databases, or limitations on size of database for NDB cluster. Thanks Sunil KUmar...
Does the VFS work in a cluster scenario? ...
Regarding iPhone Map Kit cluster pinpoints: I have 1000's of marks that I want to show on the map but it's just too many to handle so I want to cluster them. Are there frameworks available or proof of concepts? That this is possible or is already been done? ...
Could anyone hint me how to configure SwarmCache for Hibernate to work in cluster (distributed cache)? Probably there are some other alternatives (please, don't suggest JBoss Cache)? ...
I'm using function cvKMeans2() from OpenCV library for clustering. It has optional parametr: centers - The optional output array of the cluster centers The same parametr is also in function kmeans(). I want to know informations about clusters. But I haven't found what is a type of that cluster center in array, so I can't get it. Thanks...
How can one develop a cluster-aware servlet and what is the design criteria for the same? ...
I have a cluster of servers running a spring application. Some of the spring components need to be configured differently depending on the role their server is playing (primary, secondary, etc). I don't want to maintain separate spring config files for each role, rather I want to dynamically detect this when the application is started....
We have a pair of Oracle servers which are set up as nodes in a cluster (apologies if my terminology is way off). In my tnsnames.ora file, we have an entry that looks like EXAMPLE.GOV = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 1.2.3.4)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = 1.2.3.5)(PORT = 1521)) (LOAD_...
If I spawn a new process on a busy node in an erlang cluster and other nodes are idle will the process automatically be spawned on one of the free nodes? Update: I found another question similar to this one too: http://stackoverflow.com/questions/662131/using-erlang-how-should-i-distribute-load-amongst-a-cluster ...