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phoenixwriter.md

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Phoenix Writer

一、插件名称

名称:phoenixwriter

二、支持的数据源版本

phoenix4.12.0-HBase-1.3及以上

三、参数说明

  • connection
    • 描述:数据库连接参数,包含jdbcUrl、schema、table等参数
      • 必选:是
      • 字段类型:List
        • 示例:指定jdbcUrl、schema、table
      "connection": [{
           "jdbcUrl": "jdbc:phoenix:node01,node02,node03:2181",
           "table": ["table"],
           "schema":"public"
          }] 
    • 默认值:无

  • jdbcUrl
    • 描述:针对关系型数据库的jdbc连接字符串
    • 必选:是
    • 字段类型:String
    • 默认值:无

  • schema
    • 描述:数据库schema名
    • 必选:否
    • 字段类型:String
    • 默认值:无

  • table
    • 描述:目的表的表名称。目前只支持配置单个表,后续会支持多表
    • 必选:是
    • 字段类型:List
    • 默认值:无

  • username
    • 描述:数据源的用户名
    • 必选:是
    • 字段类型:String
    • 默认值:无

  • password
    • 描述:数据源指定用户名的密码
    • 必选:是
    • 字段类型:String
    • 默认值:无

  • column
    • 描述:目的表需要写入数据的字段,字段之间用英文逗号分隔。例如: "column": ["id","name","age"]
    • 必选:是
    • 默认值:否
    • 字段类型:List
    • 默认值:无

  • fullcolumn
    • 描述:目的表中的所有字段,字段之间用英文逗号分隔。例如: "column": ["id","name","age","hobby"],如果不配置,将在系统表中获取
    • 必选:否
    • 字段类型:List
    • 默认值:无

  • preSql
    • 描述:写入数据到目的表前,会先执行这里的一组标准语句
    • 必选:否
    • 字段类型:String
    • 默认值:无

  • postSql
    • 描述:写入数据到目的表后,会执行这里的一组标准语句
    • 必选:否
    • 字段类型:String
    • 默认值:无

  • writeMode
    • 描述:控制写入数据到目标表采用 insert into 或者 merge into 语句
    • 必选:是
    • 所有选项:insert/update
    • 字段类型:String
    • 默认值:insert

  • batchSize
    • 描述:一次性批量提交的记录数大小,该值可以极大减少FlinkX与数据库的网络交互次数,并提升整体吞吐量。但是该值设置过大可能会造成FlinkX运行进程OOM情况
    • 必选:否
    • 字段类型:int
    • 默认值:1024

  • updateKey
    • 描述:当写入模式为update时,需要指定此参数的值为唯一索引字段
    • 注意:
      • 采用merge into语法,对目标表进行匹配查询,匹配成功时更新,不成功时插入;
    • 必选:否
    • 字段类型:Map<String,List> - 示例:"updateKey": {"key": ["id"]}
    • 默认值:无

四、配置示例

1、insert

{
  "job": {
    "content": [{
        "reader": {
          "parameter": {
            "sliceRecordCount": ["1"],
            "column": [
              {
                "name": "id",
                "type": "int",
                "value": "400"
              },
              {
                "name": "user_id",
                "type": "int"
              },
              {
                "name": "name",
                "type": "string"
              }
            ]
          },
          "name": "streamreader"
        },
      "writer": {
        "name": "phoenixwriter",
        "parameter": {
          "connection": [{
            "jdbcUrl": "jdbc:phoenix:node01,node02,node03:2181",
            "table": [
              "tableTest"
            ]
          }],
          "username": "",
          "password": "",
          "column": [
            {
            "name": "id",
            "type": "BIGINT"
          },
            {
              "name": "user_id",
              "type": "BIGINT"
            },
            {
              "name": "name",
              "type": "varchar"
            }],
          "writeMode": "insert",
          "batchSize": 1024,
          "preSql": [],
          "postSql": [],
          "updateKey": {}
        }
      }
    }],
    "setting": {
      "speed": {
        "channel": 1,
        "bytes": 0
      },
      "errorLimit": {
        "record": 100
      },
      "restore": {
        "maxRowNumForCheckpoint": 0,
        "isRestore": false,
        "restoreColumnName": "",
        "restoreColumnIndex": 0
      }
    }
  }
}

2、update

{
  "job": {
    "content": [{
        "reader": {
          "parameter": {
            "sliceRecordCount": ["1"],
            "column": [
              {
                "name": "id",
                "type": "int",
                "value": "400"
              },
              {
                "name": "user_id",
                "type": "int"
              },
              {
                "name": "name",
                "type": "string"
              }
            ]
          },
          "name": "streamreader"
        },
      "writer": {
        "name": "phoenixwriter",
        "parameter": {
          "connection": [{
            "jdbcUrl": "jdbc:phoenix:node01,node02,node03:2181",
            "table": [
              "tableTest"
            ]
          }],
          "username": "",
          "password": "",
          "column": [
            {
            "name": "id",
            "type": "BIGINT"
          },
            {
              "name": "user_id",
              "type": "BIGINT"
            },
            {
              "name": "name",
              "type": "varchar"
            }],
          "writeMode": "update",
          "updateKey": {"key": ["id"]},
          "batchSize": 1024,
          "preSql": [],
          "postSql": []
        }
      }
    }],
    "setting": {
      "speed": {
        "channel": 1,
        "bytes": 0
      },
      "errorLimit": {
        "record": 100
      },
      "restore": {
        "maxRowNumForCheckpoint": 0,
        "isRestore": false,
        "restoreColumnName": "",
        "restoreColumnIndex": 0
      }
    }
  }
}