Configuration of CassHintTest

By closely monitoring the Casssandra Database node, this test helps administrators to figure out if the hinted handoff is enabled or not. In addition, this test reports the total number of hints that the node needs to be updated with and the number of hints that are active for replay. If there is an abnormal increase in the count of hints, administrators may infer that there is a potential database performance degradation.

The default parameters associated with this test are as follows:

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• Specify the IP address of the host for which the test is being configured.

• Specify the PORT at which the HOST listens. The default value is 9042.

• Specify the port at which the JMX listens for requests from remote hosts in JMX REMOTE PORT text box. Ensure that you specify the same port that you configured in the management.properties file in the (JAVA_HOME)\jre\lib\management folder used by the target application.

• If JMX requires authentication only (but no security), then ensure that the JMX USER and JMX PASSWORD parameters are configured with the credentials of a user with read-write access to JMX. To know how to create this user, refer to Monitoring Cassandra Database document.

• Confirm the JMX PASSWORD by retyping it in the CONFIRM PASSWORD text box.

• Once the necessary values have been provided, clicking on the Update button will register the changes made.

When changing the configuration for specific servers, a “*” beside the text box corresponding to the parameter signifies that these values have to be manually configured by the user. The parameter values that require to be configured will typically be prefixed with a “$” or contain a series of “*”. A value of "none" in the parameter value indicates that the corresponding parameter value can be changed if required.