Testing performance weight

If you have chosen the Weighted Least Concurrent Report Sets (Weighted Min-load) algorithm for load balancing (loadbalance.type=2 in the server.properties file), you will have to perform a performance weight test on the admin server. Then, based on this test result, the admin server will distribute tasks accordingly to each server in the cluster. You can also specify a weight value directly and make it take effect immediately.

To test performance weight:

1. On the JReport Administration page, click Cluster on the system toolbar and then click the Weight tab.
2. You can specify a weight value manually or perform a weight test to calculate the weight value.

   Click the Test button, the admin server will then have each cluster server run a specified report set. After all the servers have finished running, the admin server will then obtain the effective running time from each server, and then calculate their Performance Weight values using the following formula:

   	Effective running time the member server takes
   Performance Weight =
   	Effective running time admin server takes

   The value of the Performance Weight for the admin server is set to 1. Finally, the admin server will show a list of Performance Weight values for all clustered servers. Click Save to save the weight values.