# 禁用相关调度 & 禁止前端业务写入

+ 记录当前调度规则
+ 禁止调度
```
./pd-ctl config show  -u http://172.16.5.89:2679 | grep schedule-limit

"leader-schedule-limit": 4,
"region-schedule-limit": 4,
"replica-schedule-limit": 8,
"merge-schedule-limit": 8,
"hot-region-schedule-limit": 4   


./pd-ctl -u http://172.16.5.89:2679 -i

config set leader-schedule-limit 0
config set region-schedule-limit 0
config set replica-schedule-limit 0
config set merge-schedule-limit 0
config set hot-region-schedule-limit 0
```
![center](./student-guide/diagram/place-holder.png)

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禁用相关调度 & 禁止前端业务写入
记录当前调度规则
禁止调度