达梦支持dataX的数据同步，配置时选择rdbmsreader和rdbmswriter即可。如DM到DM的同步，可以配置为：

{
  "job": {
    "setting": {
      "speed": {
        "channel": 3,
        "byte": 1048576
      },
      "errorLimit": {
        "record": 0,
        "percentage": 0.02
      }
    },
    "content": [
      {
        "reader": {
          "name": "rdbmsreader",
          "parameter": {
            "username": "SYSDBA",
            "password": "SYSDBA",
            "splitPk": "",
            "connection": [
              {
                "querySql": [
                  "select C1,C2 FROM TEST_DATAX"
                ],
                "jdbcUrl": [
                  "jdbc:dm://127.0.0.1:5236"
                ]
              }
            ]
          }
        },
        "writer": {
          "name": "rdbmswriter",
          "parameter": {
            "username": "SYSDBA",
            "password": "SYSDBA",
            "column": [
              "\"C1\"",
              "\"C2\""
            ],
            "preSql": [
              "delete from TEST_DATAX"
            ],
            "connection": [
              {
                "table": [
                  "TEST_DATAX"
                ],
                "jdbcUrl": "jdbc:dm://192.168.137.1:5236"
              }
            ]
          }
        }
      }
    ]
  }
}

对于canal，其再源端是解析的mysql的binlog，这个对其他数据库是不通用的（除非是基于mysql的国产数据库）。达梦本身有基于解析redo日志的同步软件DMHS，可以参考：https://eco.dameng.com/docs/zh-cn/start/dmhs-product-introduction.html