Description
This alert is triggered when the proportion of the disk space used in the directory where all OBServers in a zone are located (the /data/1 mount point of the OS) among the capacity of the operation directory where all OBServers in the zone are located exceeds the threshold.
Alert information
| Trigger method | Alert level | Scope |
|---|---|---|
| Metric expression | Critical | Cluster |
Alert rule
| Metric | Default threshold | Source | Duration | Detection cycle | Time before clearance |
|---|---|---|---|---|---|
| ob_zone_disk_percent | 75 | Internal table __all_virtual_disk_stat of OceanBase Database | 0 seconds | 60 seconds | 5 minutes |
Alert templates
Overview: ${alarm_target} ${alarm_name}
Details: ${alarm_target} ${alarm_name}. The data disk usage of the zone of the OceanBase cluster is ${value}%, exceeding the threshold of ${alarm_threshold}%.
Overview example: ob_cluster=C1-1000:obzone=zone-2. The data disk usage of the zone of the OceanBase cluster exceeds the threshold.
Details example: ob_cluster=C1-1000:obzone=zone-2. The data disk usage of the zone of the OceanBase cluster is 76.0%, exceeding the threshold of 75.0%.
Impact on the system
If the data disk space is insufficient, new data cannot be written to the data disk.
Possible cause
The application data size increases continuously.