| UNKNOWN |
The category of this event is unknown |
| HEALTH_EVENT |
This event was generate during a health check |
| LOG_EVENT |
This event was sent because a specific log message was detected |
| AUDIT_EVENT |
This event was caused by an audit event e.g. service restart,
role reconfiguration, etc |
| ACTIVITY_EVENT |
This event was triggered by an activity event
e.g. activity entered shuffle phase, stopped, preempted, etc |
| HBASE |
This is an HBase domain specific-event. |
| SYSTEM |
This event was generated by the CM server for a system event |