What is a Cloud Load Balancer?
A Cloud Load Balancer accepts network traffic on a specific Cloud IP address, then distributes the requests to Cloud Servers contained within the load balancing group, according to the load balancing mode of the load balancer.
At this point of time, the Cloud Central system supports load balancing for the most common protocols, HTTP and HTTPS, additional protocols will be supported in a future release.
The load balancing modes that are supported include:
Round Robin: New requests are distributed to the next Cloud Server in the load balancing group in a 'round robin' fashion.
Least Connection: New requests are routed to the Cloud Server in the load balancing group with the least number of active connections.
Source: New requests from a source IP address are routed back to the same Cloud Server as previous requests from the same source IP address.
This mode is also known as 'sticky or persistent sessions', and is particularly useful for HTTPS / SSL connections to avoid renegotiation of the connection for each new request. It is also useful when a request must be routed back to the same server if the users session state is contained within the cloud server.