# 2021-05-10-11:32:27+0800 scale up db monitor of cluster 1311285575352848384

- Cause: https://pingcap.pagerduty.com/incidents/P0AHH1M
- Operation:

```bash
# take a backup of current db monitor
kubectl get tidbmonitor -n tidb1311285575352848384 db -o yaml > tm_backup.yaml

# edit target db monitor resource, set memory request/limit to 6g/12g
kubectl edit tidbmonitor -n tidb1311285575352848384 db

# wait the upgrade complete
kubectl get po -n tidb1311285575352848384 --watch
```

- Impact:  the db-monitor pod will be restarted
- Recovery operation:  apply the `tm_backup.yaml` back to the cluste
- Time window: 2021-05-10 11:40 ~ 11:50 CST