# 2022-07-27-15:57:00+0800 restart tiflash to reload new cert

- Cause:
  (TCA-9519) The cert of TiFlash has expired and renewed automatically by the cert-manager, but TiFlash didn't reload the new cert. And then Prometheus can't scrap metrics from this old TiFlash.

- Operation:
  restart tiflash

command:
```
kubectl -n tidb1379661944580644069 delete po db-tiflash-0
```