# Incremental data replication - Add the data source to `DM`

+ New data source file `mysql-source-conf1.yaml` / `mysql-source-conf2.yaml` 
```
source-id: "mysql-replica-01"
from:
  host: "10.90.2.119"
  port: 3306
  user: "dm_user"
  password: "Ibm6mTTM5uCZ+UBHzqsMJkCQQX9tQPsrxzI="
```

```
source-id: "mysql-replica-02"
from:
  host: "10.90.1.84"
  port: 3306
  user: "dm_user"
  password: "Ibm6mTTM5uCZ+UBHzqsMJkCQQX9tQPsrxzI="
```
-------------------------------------------------------------
Create a new data source file `mysql-source-conf1.yaml` / `mysql-source-conf2.yaml` to configure two upstream data sources into `DM`.
If the `MySQL` instance has enabled `GTID` mode, the variable 'enable-gtid' needs to be added, set to true.
```
source-id: "mysql-replica-01"
from:
  host: "10.90.2.119"
  port: 3306
  user: "dm_user"
  password: “Ibm6mTTM5uCZ+UBHzqsMJkCQQX9tQPsrxzI="

source-id: "mysql-replica-02"
from:
  host: "10.90.1.84"
  port: 3306
  user: "dm_user"
  password: “Ibm6mTTM5uCZ+UBHzqsMJkCQQX9tQPsrxzI="
  ```