load-balancing

I'm trying to use ModCluster to load balance some servers. We have one single EAR that need to be load balanced by different DNSs. We have this scenario. We need to maintain the same context 'system1' because of backward compatibility 4 servers for urla.com.br/system1/ 2 servers for urlb.com.br/system1/ Using Wildfly 10.1.0 in domain mode, they are separated by two server groups: URLA and URLB . They share the same profile (URL-HA) and socket bindings (URL-HA-SOCKET). I have an Apache with mod_cluster with a minimal configuration. LoadModule cluster_slotmem_module modules/mod_cluster_slotmem

I'm wondering how load balacing and failover between client and query routers work in MongoDB. I haven't found any matching documentation so far. Everyone says it's not relevant and I don't think so. Every piece of software / hardware can die and there'll be always a reason why you can't bring it up immediately again. The situation is very simple. Assuming a usual setup with sharded replicat sets, a client connects to a query router and performs operations. What happens if the query router dies? Is there an intended way for automatic failover to a second query router? Or for load balancing

I have service running on Google Compute Engine. I've got few instances in Europe in a target pool and few instances in US in a target pool. At the moment I have a domain name, which is hooked up to the Europe target pool IP, and can load balance between those two instances very nicely. Now, can I configure the Compute Engine Load Balancer so that the one domain name is connected to both regions? All load balancing rules seem to be related to a single region, and I don't know how I could get all the instances involved. Thanks! You can point one domain name (A record) at multiple IP addresses,

I am looking for a solution that allows me to deploy multiple load balanced Grails instances that have shared cache (EhCache Server ?) and sessions, is this possible ? I can't find any documentation on this (connecting to a common EhCache server or using Distributed EhCache, and sharing sessions (using EhCache too ?))... I'm looking for something that will work like multiple Rails instances with a common memcached and sessions/caches stored in the memcached... I was recently listening to a talk by Dave Klein , author of the book "Grails: A Quick Start Guide", and Mike Allen, Product Managemer