Disabling and Re-enabling Alerts
You can optionally disable alerts. When an alert is disabled, no alert instances are in effect and Ambari will no longer perform the checks for the alert. Therefore, no alert status changes will be recorded and no notifications (i.e. no emails or SNMP traps) will dispatched.
Browse to the Alerts section in Ambari Web.
Find the alert definition. Click the Enabled or Disabled text to enable/disable the alert.
Alternatively, you can click on the alert to view the definition details and click Enabled or Disabled to enable/disable the alert.
You will be prompted to confirm enable/disable.