# 2021-04-19-19:19:28+0800 increase central metrics scrape timeout duration

- Cause: https://jira.tidbcloud.com/browse/DM-728
- Operation:
1. backup servicemonitors crd
kubectl servicemonitors.monitoring.coreos.com -n prod central -o yaml > sa-backup.yaml
2. update central servicemonitors scrapeTimeout
kubectl edit servicemonitors.monitoring.coreos.com -n prod central

before: 
```yaml
  - port: metrics
    scrapeTimeout: 30s
```

after: 
```yaml
  - interval: 60s
    port: metrics
    scrapeTimeout: 60s
```

- Impact: no impact, prometheus will reload config
- Recovery operation: kubectl apply -f sa-backup.yaml
- Time window: 2021-04-19-19:30:00+0800 ~ 2021-04-19-19:35:00+0800