# Split Write Hotspot (G)


![left](./student-guide/diagram/21-during-business-operation-03-01.png)

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- Target region ID can be located through the traffic visualization menu  
          pd-ctl region key {start_key}
- Split Region
          pd-ctl operator add split-region {region_id} —policy=
- Transfter splits the new region to another store
        - Filter out the new region id after split via pd.log
        - transfter to a store with relatively low resource utilization 
                - operator add add-peer {new_region_id} {target_store_id}
                - operator add transfer-leader {new_region_id} {target_store_id}
                - operator add remove-peer {new_region_id} {original_store_id}
```
SPLIT TABLE table_name INDEX idx_name BETWEEN () AND () REGIONS n;
```