load-balancing

I had done simple setup: Backend(website): 1 machine having tomcat installed and serving on 8080. webapps folder of tomcat has two folder 1 withGoogleRule1 |--test.html 2 withoutGoogleRule1 |--test.html Now i have a google-load-balancer setup with below settings Now Backend machine direct ip is http://104.197.37.171:8080/withoutGoogleRule1/test.html Load Balancer url is http://107.178.240.39:8080/withoutGoogleRule1/test.html PROBLEM: No matter how many time we refresh url for direct machine, all requests always servers correctly. But if you access url using load balancer 1 out of 5 time it

I have used Apache HTTPD mod_jk and Tomcat for a high availability solution. Here is the workers.properties for it. worker.list=myworker worker.myworker1.port=8009 worker.myworker1.host=host1 worker.myworker1.type=ajp13 worker.myworker1.lbfactor=1 worker.myworker2.port=8009 worker.myworker2.host=host2 worker.myworker2.type=ajp13 worker.myworker2.lbfactor=1 worker.myworker.type=lb worker.myworker.balance_workers=myworker1,myworker2 worker.myworker.sticky_session=True Right now, the requests are equally distributed among the workers and applications are working fine. What I want is, all the

Looking to implement Load balancing for two Tomcat 7 instances each on a different machine & two other Tomcat 7 instances on a different machine serving two different purpose. On Machine 1, will have two Tomcat instances TomA.1 & TomB.1 running on different ports On Machine2, will have two Tomcat instances TomA.2 & TomB.2 running on different ports Now TomA.1 & TomA.2 needs to be run in LoadBalanced fashion & similarily TomB.1 & TomB.2 needs to be run in LoadBalanced fashion. Would highly appreciate if anyone can point to the best practices & which Apache module to use as a load balancer. Mod

I'm coding an online multiplayer game using nodejs and HTML5 and I'm at the point where I would like to have multiple maps for people to play on, but I'm having a scaling issue. The server I'm running this on isn't able to support the game loops for more than a few maps on its own, and even though it has 4 cores I can only utilize one with a single node process. I'd like to be able to scale this to not even necessarily be limited to a single server. I'd like to be able to start up a node process for each map in the game, then have a master process that looks up what map a player is in and

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. I'd configure my load balancer with stickey sessions to avoid this problem. With sticky sessions, you'll be directed to the same server over and over again during the session. If your application is stateless, it shouldn't matter. Whether a standard HTTP request or Ajax based request to your server, if your application does not rely on server side state (such

Is there a way to modify how R foreach loop does load balancing with doParallel backend ? When parallelizing tasks that have very different execution time, it can happen all nodes but one have finished their tasks while the last one still have several tasks to do. Here is a toy example: library(foreach) library(doParallel) registerDoParallel(4) waittime = c(10,1,1,1,10,1,1,1,10,1,1,1,10,1,1,1) w = iter(waittime) foreach(i=w) %dopar% { message(paste("waiting",i, "on",Sys.getpid())) Sys.sleep(i) } Basically, the code register 4 cores. For each loop i , the task is to wait for waittime[i] seconds

In some requests the $_SERVER['HTTP_HOST'] not exists. I researched on the causes and now I know that this occurs on HTTP 1.0 requests. I have 4 domains in many machines behind a load balancer on AWS EC2 and I don't have a idea how to solve this problem. This is important, because is a business rule. 来源： https://stackoverflow.com/questions/24044630/http-host-not-found-behind-load-balancer-on-ec2