Clustering › How to Set Up Load Balancing › Verify Load Balancing

Verify Load Balancing

Verifying your load balancing setup is required to help ensure that it runs efficiently. To verify your load balancing setup, follow these steps:

1. Sanity test the implementation, as follows:
   • To test failover functionality, verify that the load is distributed to other nodes when one of the nodes in the same cluster shuts down.
   • To test load balancing, verify that the load is distributed to other nodes when one of the nodes in the same cluster becomes busy.
2. If you add or delete clusters at a later time after your initial setup, use the previous steps as a model to adjust the workers.properties files to account for the newly added or deleted cluster.
3. We suggest that you cluster your load balancer computers to help avoid single-point-of-failure problems with an individual load balancer computer. For instructions, see the Apache web site, www.apache.org, and other resources with expertise in clustering load balancer computers.
4. Verify that all clustered nodes for Service View and CA Workflow communicate efficiently with all load balancer computers using the telnet utility.
5. If clusters do not run efficiently, verify that this communication exists and check for any network configuration problems. For example, in the following diagram, all the machines V1-V2 and W1-W3 clusters must be able to run the “telnet loadbalancer portno” command.

   For example, if your loadbalancer host name is abc and port is 89, then you should be able to successfully connect using the following command from all your clustered nodes:

   telnet abc 89