Using this test, administrators can identify the number of available CPU cores, the total memory used by the CPU and the available worker slots in the Supervisor node of the target Apache Storm. Any aberrant condition of memory usage will alert the administrators to take remedial measures before users start complaining. Administrators may schedule periodic reboots of the Supervisor nodes. By knowing that a specific node has been up for an unusually long time, an administrator may come to know that the scheduled reboot task is not working on a node. This test included in the eG agent also monitors the uptime of critical nodes.

This page depicts the default parameters that need to be configured for the StormSupSumTest test.

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

• In the HOST text box, specify IP address of the target server that is being monitored.

• By default, the SSL flag is set to No, indicating that the target Apache Storm is not SSL-enabled by default. To enable the test to connect to an SSL-enabled Apache Storm, set the SSL flag to Yes.

• Once the above values are provided, click on the UPDATE button to register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.