Hi, I am new to asp.net, I have been tasked to upgrade the physical architecture to load balancing environment to support the application. I done some reading the session state should be configure to Out-Process instead of In-Proc to support load balancing. Is there any other issues I need to take note for asp.net web application t...
I'm building production configuration where 2 tomcats are sitting behind the apache with load-balancer and mod_proxy. What I need is the script which checks whether particular instance of tomcat is running. The problem is I use AJP connector in tomcat. Is it possible to issue HTTP request to apache somehow that I make sure only needed in...
Hello, guys! I'm currently developing a project supported on a WebLogic clustered environment. I've successfully set up the cluster, but now I want a load-balancing solution (currently, only for testing purposes, I'm using WebLogic's HttpClusterServlet with round-robin load-balancing). Is there any documentation that gives a clear compa...
One of the challenges that we face during deployments on multiple load balanced instances is – the risk of not deploying the latest code base to one or more load balanced instances. Idea is to use only one instance for direct deployment and entrust sync up to a script that syncs up selected list of folders to the other load balanced in...
Sorry for my Dummy Question, but... I am making a script on php/mysql (codeigniter) and I am extremally interested in knowing if there is a way without big architectural changes of the script make a load balancing. I mean, that for example now I will rent a medium dedicated server with 2GB ram, 200GB memory and good processor, and this...
Ran into this issue yesterday on one of our sites. First of all the site is hosted in a web farm environment and for the time being I have added a static machineKey to the web.config on both nodes (2 node environment). This has solved the issue and everything is running fine now. This raised the following question: Why is it that all...
I need to quickly replace a listings website which has the following characteristics: smallish database (10,000 items, < 1GB) < 10% of the items updated/created/removed daily most common activity is searching the whole dataset, returning 1-1000 items traffic peaks at 1m page impressions per day Scaling strategy for the existing app h...
I'm creating web application behind load balancer. To this moment I configured it to store session in database but I'm not sure how should I handle session expiration. The problem is not sessions are not removed from database but Session_End event because I have to call some web service method in it. Assuming Session_End is called when ...
I'm currently trying to build a High-Availability and load-balanced web application with Sql Server Replication technologies. Automatic fail-over is built into the application logic. Basically, there are two groups of app servers running the same, each with its own Sql instance. They are set to use the other instance in case of failure. ...
Hi I am considering to develop an web application with Spring and OSGi. It seems like they fit together nicely. What are the options for clustering and loadbalancing such an app and what are the pros and cons of each? Thanks ...
Hello, I have a problem. I need to host many (tens, hundreds) of small identical JAVA web applications that have different loads during one time. I want to use Glassfish V3. Do I need to use a load balancer and clusters or something else? Advise where can I find information about similar problems and their solutions... Best regards, Al...
HI ALL, I want to know whether ajp protocol for load balancing is supported in WAS7? If so what is the configuration or the settings that is supposed to be done in WAS. I am using a IBM HTTP Server configured to use ajp protocol for load balancing & my App Serv (WAS7) is not responding to it. i have already verified http://publib.boul...
I have a situation very similar to the one in this question: http://stackoverflow.com/questions/774695/selective-cache-clearing-across-load-balanced-servers-asp-net The difference is that due to our hosting configuration, I am unable to address individual servers by IP address. Assuming I cannot access specific servers via web requests...
Building a JSF application with Spring on Tomcat. The target is a web farm, and the client has requested that we design our application so that it can be load balanced without relying on "sticky sessions" in the LB. In .NET, you can configure the session store to be SQL Server or the ASP.NET State Service. What alternatives are ther...
Can I implement load balancing in BGP? ...
Hey folks, I was trying to read up on load balancing in Windows Azure, and all the information about it is extremely vague and non-specific. All I really want is a simple answer: how does Azure perform load balancing? Many applications use sessions or in-memory data to increase performance. With Azure, I'm not sure if this is possible,...
I was discussing load-balancing with a colleague at lunch. I admit that I know very little about this topic. We were discussing the various ways of maintaing session in a ASP.NET application -- none of which suited the high performance load balancing that he was looking for. What about Silverlight? says I. As far as I know it is statel...
We usually blacklist IPs address with iptables. But in Amazon EC2, if a connection goes through the Elastic Load Balancer, the remote address will be replaced by the load balancer's address, rendering iptables useless. In the case for HTTP, apparently the only way to find out the real remote address is to look at the HTTP header HTTP_X_F...
I have a website which runs on IIS (Asp.net application, some of them are in dotnetnuke also) and we are expecting higher numbers of traffic on some of the sites, so we are planning to add a load-balancer, but before going to do that, we just want to know is it worth to do that? So, I want to know if is it possible to simulate load balan...
We have some legacy ASP.NET code that detects if a request is secure, and redirects to the https version of the page if required. This code uses Request.ServerVariables["SERVER_PORT_SECURE"] to detect if SSL is needed. Our operations team has suggested doing proxy SSL at the load balancer (F5 Big-IP) instead of on the web servers (assu...