The Disk Usage Alarm Is Frequently Generated

Symptom

Alarms are generated when the disk usage of a DWS cluster reaches 80%.

Possible Causes

The alarm threshold configured for the cluster is improper.

Handling Procedure

Set the triggering condition on the GaussDB (DWS) management console. You can set the disk usage, alarm duration, and frequency.

If the cluster disk usage reaches 90%, the cluster becomes read-only. You will need time to handle this issue.

1. Log in to the GaussDB(DWS) management console.
2. In the navigation pane on the left, click Alarms.
3. Click View Alarm Rule in the upper left corner.
4. On the Alarm Rules page that is displayed, click Modify in the Operation column of the target alarm rule. Change the trigger condition. If the average value is greater than 90%, the alarm will be triggered. Set the suppression policy to generate one alarm each day. (This example is for reference only.)
   • Trigger: calculation rule for threshold determination of a monitoring metric. Select the average value within a period of time of a metric to reduce the probability of alarm oscillation.
   • Constraint: suppresses the repeated triggering and clearance of alarms of the same type within the specified period.
   Figure 1 Setting an alarm rule