How can Zabbix mitigate duplicate alerts for the same issue?

Zabbix can effectively mitigate duplicate alerts for the same issue by setting up trigger dependencies. This mechanism allows a dependent trigger to suppress alerts from one or more triggers that would normally generate alerts when a specific parent trigger is in a certain state.

For instance, if two triggers are monitoring different symptoms of the same underlying issue, you might want to configure a dependency such that when the parent trigger indicates a problem, the dependent triggers do not send out their own alerts. This approach helps to consolidate notifications and prevents the noise that can come from simultaneously alerting multiple symptoms of a singular issue. Therefore, it ensures that operators can focus on addressing the root cause without being overwhelmed by repeated alerts for the same problem.

The other approaches, while having their uses, do not address the core issue of alert duplication effectively. Adjusting alert severity levels, for example, might change how alerts are prioritized but does not prevent multiple alerts from being generated in the first place. Configuring email notifications pertains to how alerts are communicated rather than their occurrence. Disabling problematic triggers may be a short-term fix but doesn't resolve the situation in a way that maintains monitoring integrity.