PiflowX-DorisRead组件

DorisRead组件

组件说明

从Doris存储读取数据。

计算引擎

flink

有界性

目前Doris Source是有界流，不支持CDC方式读取。

组件分组

Doris

端口

Inport：默认端口

outport：默认端口

组件属性

DorisRead示例配置

{
   
  "flow": {
   
    "name": "DorisWriteTest",
    "uuid": "1234",
    "stops": [
      {
   
        "uuid": "1111",
        "name": "DataGen1",
        "bundle": "cn.piflow.bundle.flink.common.DataGen",
        "properties": {
   
          "schema": "[{\"filedName\":\"id\",\"filedType\":\"INT\",\"kind\":\"sequence\",\"start\":1,\"end\":10000},{\"filedName\":\"name\",\"filedType\":\"STRING\",\"kind\":\"random\",\"length\":15},{\"filedName\":\"age\",\"filedType\":\"INT\",\"kind\":\"random\",\"max\":100,\"min\":1}]",
          "count": "100",
          "ratio": "50"
        }
      },
      {
   
        "uuid": "2222",
        "name": "DorisWrite1",
        "bundle": "cn.piflow.bundle.flink.doris.DorisWrite",
        "properties": {
   
          "fenodes": "192.168.186.102:8030",
          "username": "root",
          "password": "",
          "sinkLabelPrefix": "doris_label2",
          "tableIdentifier": "demo.test",
          "tableDefinition": "{\"catalogName\":null,\"dbname\":null,\"tableName\":\"\",\"ifNotExists\":true,\"physicalColumnDefinition\":[{\"columnName\":\"id\",\"columnType\":\"INT\",\"comment\":\"id\"},{\"columnName\":\"name\",\"columnType\":\"STRING\",\"comment\":\"name\"},{\"columnName\":\"age\",\"columnType\":\"INT\"}],\"metadataColumnDefinition\":null,\"computedColumnDefinition\":null,\"watermarkDefinition\":null}",
          "properties": "{}"
        }
      },
      {
   
        "uuid": "3333",
        "name": "DorisRead1",
        "bundle": "cn.piflow.bundle.flink.doris.DorisRead",
        "properties": {
   
          "fenodes": "192.168.186.102:8030",
          "username": "root",
          "password": "",
          "tableIdentifier": "demo.test",
          "tableDefinition": "{\"catalogName\":null,\"dbname\":null,\"tableName\":\"\",\"ifNotExists\":true,\"physicalColumnDefinition\":[{\"columnName\":\"id\",\"columnType\":\"INT\",\"comment\":\"id\"},{\"columnName\":\"name\",\"columnType\":\"STRING\",\"comment\":\"name\"},{\"columnName\":\"age\",\"columnType\":\"INT\"}],\"metadataColumnDefinition\":null,\"computedColumnDefinition\":null,\"watermarkDefinition\":null}",
          "properties": "{}"
        }
      },
      {
   
        "uuid": "4444",
        "name": "ShowData1",
        "bundle": "cn.piflow.bundle.flink.common.ShowData",
        "properties": {
   
          "showNumber": "100"
        }
      }
    ],
    "paths": [
      {
   
        "from": "DataGen1",
        "outport": "",
        "inport": "",
        "to": "DorisWrite1"
      },
      {
   
        "from": "DorisWrite1",
        "outport": "",
        "inport": "",
        "to": "DorisRead1"
      },
      {
   
        "from": "DorisRead1",
        "outport": "",
        "inport": "",
        "to": "ShowData1"
      }
    ]
  }
}

DorisRead示例说明

本示例演示了通过DataGen生成100条测试数据，然后使用DorisWrite组件写入doris，然后使用DorisRead组件将数据从doris中读取，最后通过showData组件打印到控制台。

演示DEMO