数据湖探索 DLI-DWS维表:常见问题

时间:2024-07-01 21:07:20

常见问题

  • Q:若Flink作业日志中有如下报错信息,应该怎么解决?
    java.io.IOException: unable to open JDBC writer
    ...
    Caused by: org.postgresql.util.PSQLException: The connection attempt failed.
    ...
    Caused by: java.net.SocketTimeoutException: connect timed out
    A:应考虑是跨源没有绑定,或者跨源没有绑定成功。
  • Q:如果该DWS表在某schema下,则应该如何配置?
    A:如下示例是使用schema为dbuser2下的表area_info:
    --创建地址维表
    create table area_info (
        area_id string, 
        area_province_name string,
        area_city_name string,
        area_county_name string,
        area_street_name string, 
        region_name string 
    ) WITH (
     'connector' = 'gaussdb',
      'driver' = 'org.postgresql.Driver',
      'url' = 'jdbc:postgresql://DwsAddress:DwsPort/DwsDbname',
      'table-name' = 'dbuser2.area_info',
      'username' = 'DwsUserName',
      'password' = 'DwsPassword',
      'lookup.cache.max-rows' = '10000',
      'lookup.cache.ttl' = '2h'
    );
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