Does anyone know a simple load balance algorithm (formula) that relates users connected, cpu load, network load and memory usage? This will be used to compare various servers and assign to a new user the best at the moment. Thank You. ...
If you were an asynchronous javascript call in an Asp.Net MVC environment, and you had to work with a round-robin style of load balancer, would you be able to find your way home? edit: adding clarification ..using in-memory session state. ...
How can i connect two or more machines to form a network grid and how can i distribute work load to the two machines? What operating systems do i need to run on the machines, and what application should i use to manage the load balancing? NB: I read somewhere that google uses cheap machines to perform this fete, how do they connect tw...
I am trying to reduce the load on my webservers by adding an "Image server" (a dedicated server for handling image requests), and redirecting all requests for .gif,.jpg,.png etc., to it. My question is, what is the best way to handle the redirection? At the firewall level? (can I do this using iptables?) At the load balancer level? ...
Hi, Is there a way to automatically publish a website to multiple locations at once? Our website is load balanced across multiple servers, so when I want to publish I have to do it to each server individually. Thx, Trev ...
I develop a web application that needs to be load balanced across 4 webservers. My company is purchasing the load balancer hardware (Cisco). There is confusion on how to tell the load balancer that a webserver should be in the rotation. The IT Hardware support team wants me to create a one page web application that will sit next to the...
We have a few 'classic asp' client facing websites feeding off a central asp.net mvc site which acts as a webservice ie we query the MVC controllers directly from the ASP sites with extensive use of jquery ajax. This MVC site in turn queries sql server running on a seperate box. We have a custom session profile which requires a call to t...
At one of our client's site we have the following topology of BizTalk 2006 in production environment: 2 BizTalk Runtime servers 1 SQL Server with MsgBox and TrackingDB on it. One of the runtime servers are dedicated physical server and the another is virtual server, though both have 4 CPUs and 8Gb of memory. The physical server ...
I have a web project that I developed where one of the main functions is uploading files. All the permissions are based on Windows Authentication. When I first created the project, I didn't realize that it would be on a load balanced server. Now it's in the environment with the load balanced server and the file upload has become a majo...
I would like to know how MOSS Front End load balancing works, just an overview or a link to a site that contains this type of information. In otherwords, I have 2 front end servers in the farm, how does MOSS distribute the work load? ...
UPDATE 3: I created a Visual Studio 2008 test project and tried to create a service reference to shared site WCF service reference and received the following error: There was an error downloading 'http://apps.mydomain/MyService.svc'. The request failed with HTTP status 400: Bad Request. Metadata contains a reference that cann...
If I simply point to both in my DNS record, wouldn't 50% of traffic be in trouble as well? ...
Scenario: The website is hosted on 3 servers using IIS on each. All 3 servers are clustered using the network load balancing software that comes with Windows Server 2003. All 3 sites are configured to store session state on a separate server that has been designated as a "State Server". I have been asked to scale up the "State Serve...
Does anybody knows if there is a sort of 'load-balancer' in the erlang standard library? I mean, if I have some really simple operations on a really large set of data, the overhead of constructing a process for every item will be larger than perform the operation sequentially. But if I can balance the work in the 'right number' of proces...
I am setting up a online video playing web site (like Youtube). My technical challenge is to serve a lot of hits and still maintain performance. My current solution is to set up several back-end servers, having each server cache a part of the video which could save the time to read the video file from disk I/O. Another front-end server...
I don't have the faintest clue on how a software or hardware load balancer works. I guess the hardware load balancer is basically a switch and based on some algorithm decides which node to switch to for a incoming request. On the software load balancer front, I guess the software picks up a node and uses a reverse proxy connection to it....
Hi guys, I'm setting up a project and one of the main questions is how to implement a simple message queueing system (something along the line of a messenger chat system). I would like to avoid polling, but there will most likely be a lot of concurrent connections (tens of thousands). These will be HTTP+SSL connections, started from an a...
Our postgres server is about hitting its capacity and we're looking into adding a second database server. Are there any scaling solutions that are particularly good for a postgres setup? ...
I have two servers running Windows 2008 Web Edition and SQL 2008 Standard Edition, how would be the best approach to load balance them? Should I use database mirroring or log shipping? Is Win2008 NLB easy to configure by a developer, since I'm not a sys admin? What I'm looking for is to be able to have my sites running in case of a si...
Does the OnSessionStart / Session_Start event still only fire once (total) in a server farm environment, or since requests are handled by multiple servers, could it fire up to once per server? ASP.NET / IIS6 or 7 It should not be assumed that the server is using Sticky Sessions. ...