# 2022-02-14-15:48:08+0800 Set max-merge-region configs

- Cause: TCOC-262
- Operation:
```bash
# kubectl exec --tty --stdin -n tidb1379661944595614073 db-pd-0 -- /bin/sh

# In the PD container
/pd-ctl config -u https://127.0.0.1:2379 --cacert=/var/lib/pd-tls/ca.crt --cert=/var/lib/pd-tls/tls.crt --key=/var/lib/pd-tls/tls.key set max-merge-region-size 20
# Success!

/pd-ctl config -u https://127.0.0.1:2379 --cacert=/var/lib/pd-tls/ca.crt --cert=/var/lib/pd-tls/tls.crt --key=/var/lib/pd-tls/tls.key set max-merge-region-keys 200000
# Success!
```
- Impact: The PD config has been changed. 
- Time window:  2022-02-14-15:48:08+0800 - 2022-02-14-15:51:00+0800