SONARPLEX supports detection of flapping hosts and services. Flapping means that services or hosts are changing their status (you can view service and host status respectively inUser Web Interface > Monitoring > Services or User Web Interface > Monitoring > Hosts) too frequently.
For detecting hosts and services flap, proceed as follows:
- Open the Administration Web Interface > Configuration > Advanced > Flap Detection
- Enable the checkbox „Enable Flap detection”
- You can modify the default setting
- Save your settings by clicking on
Utilities with self-explaining names can be used to manage flap detection immediately without restarting monitoring process.
Flap Handling
When a flapping service or host is detected for the first time, SONARPLEX will:
- Create an event log message indicating that the service or host is flapping.
- Add a non-persistent comment to host or service about it.
- Send a "flapping start" notification for the host or service to appropriate contacts.
- Suppress all other notifications for the service or host.
When flapping for service or host stops, SONARPLEX will:
- Create an event log message indicating that the service or host has stopped flapping.
- Delete the comment that was originally added to the service or host when it started flapping.
- Send a "flapping stop" notification for the host or service to appropriate contacts.
- Start to send other notifications for the service or host.