Load Balancers & Applications

Overview

This section provides a holistic view of all load balancers and applications in the cluster. Here you can inspect how the components of the cluster are associated with each other and how the traffic is expected to flow.

Cluster Diagram

Tiers

• Users (tier 0): Shown as cloud icon. Indicates traffic coming from the Internet.

• Load Balancer (tier 1): This is the topmost element. It shows the name and the URL endpoint of the load balancer which handles the distribution of incoming traffic to the applications.

• Applications & Servers (tier 2): An application is a "container" encapsulating one or more instances running on a single server. Each application is tagged with the server it is deployed on.

• Application Instances (tier 3): These boxes represent individual instances of each application. Each instance is an application process running on the specified server and port.

Unassociated Applications

If the cluster contains applications not associated with any load balancer, ClusterWare shows information about them in the bottom of this section.

Status Indicators

Traffic Flow Status

• Animated arrow - traffic flowing normally: It means that all applications are running and are included in the load balancer config.

• Static arrow - no traffic flowing: It may indicate for example that some applications are not included in the load balancer config.

• Warning icon - disruption in traffic flow: For example when not all application instances are running.

Application Instance Status

• Animated green cog: represents a running application instance.

• Static yellow cog: represents a stopped application instance or an application instance pending start.