Aug 25
HAProxy is a very fast, efficient piece of software that enables you to load balance multiple servers behind an HAproxy front end. It supports tends of thousands of concurrent connections with moderate hardware requirements, whilst also being incredibly reliable.
The layer 7 load balancing software can even act as a rudimentary firewall – placed in-front of a single server it can screen requests to see if they are malformed or similar. Protecting your Apache server from overloading its CPU or exceeding it’s RAM and going in to swap is a massive worthwhile benefit.
Unfortunately the main feature that HAproxy doesn’t support, is SSL; but there are multiple ways around this which I’m sure you can explore. The official HAproxy website is here: http://haproxy.1wt.eu/
Tagged with: load balancing • proxy
Aug 17
http://techwebinarmaven.com/s/632.load-balancing-in-virtual-server-environments/
No good deed goes unpunished, especially when it comes to IT. As server utilization rates increase thanks to virtualization, the network tends to get punished because where there was once, for example, ten servers there are now 100 virtual servers.
In a Learn How to Virtualize Mission-Critical Applications with VMware and F5 webinar sponsored by F5 Networks and VMware, how to balance application loads across virtual servers is squarely addressed.
Charlie Cano, solution architect for F5 Networks, and Sanjay Aiyagari, a senior partner solutions manager for VMware, take turns discussing how to optimize network traffic using F5 Network appliances that have been tuned to support new VMware technologies, such as AppSpeed, and existing VMware capabilities, such as the Distributed Resource Scheduler.
For instance, F5 Network has added the ability for its products to not only tell VMware that a new virtual machine needs to be spun up, but then also automatically balance network traffic to accommodate that new instance of a virtual machine.
Overall, Cano says the use of F5 Network appliances can result in anywhere from 30 to 50 percent more virtual machine density per physical server because of all the tasks have been offloaded to the F5 Network appliances.
Tagged with: load balancing • server
Jul 27
Load balancing
Load balancing allows your website to continue performing in the event of server downtime due to server failure or planned maintenance. Managed server load balancing from delivers
- Load balancing to improve performance through efficient distribution of network traffic
- Firewalls in High Availability configuration
- Web servers arranged in active-active or active-passive pairs to provide failover redundancy
- Database servers replicated or clustered for reliability and performance
- Improved performance for your website and applications
- Service continuity in the event of a server failure
Load balancing is fully configurable to meet your requirements. You can specify round-robin, weighted round-robin, least connections or least sessions load balancing methods as well as stickiness based on IP address, cookie, session ID.
Tagged with: load balancing • servers
