eG Monitoring
 

Measures reported by CassStrgeTest

This test reports the current size of the target Cassandra Database node and the rate at which data is growing. This test also reveals the rate of unhandled exceptions on the database node. Using this test, administrators can figure out how well the database node is growing as well as capture and rectify the unhandled exceptions before the data becomes stale!

Ouputs of the test: One set of results for the target Cassandra Database node that is being monitored.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Node_size Indicates the current data size of the target node. MB  
Growth_rate Indicates the rate at which data is growing on the target node. MB/sec  
Exceptions Indicates the rate at which unhandled exceptions occurred on the node during the last measurement period. Exceptions/sec Ideally the value of this measure should be 0. A sudden/gradual increase of this measure indicates that too many unhandled exceptions have occurred. Administrators may need to troubleshoot the unhandled exceptions by checking the Errors and Fatal measures reported by the CassLogTest test.