连接postgresql或者gaussdb时报错
问题
连接postgresql或者gaussdb时报错。
回答
- 场景一:(import场景)使用sqoop import命令抽取开源postgre到MRS hdfs或hive等。
- 问题现象:
使用sqoop命令查询postgre表可以,但是执行sqoop import命令倒数时报错:
- The authentication type 12 is not supported. Check that you have configured the pg_hba.conf file to include the client's IP address or subnet, and that it
- The authentication type 5 is not supported. Check that you have configured the pg_hba.conf file to include the client's IP address or subnet, and that it
- 问题根因:
- 报错中type为5时:在执行sqoop import命令时,会启动MapReduce任务,由于MRS Hadoop安装目录(/opt/Bigdata/FusionInsight_HD_*/1_*_DataNode/install/hadoop/share/hadoop/common/lib)下自带了postgre驱动包gsjdbc4-*.jar,与开源postgre服务不兼容导致报错。
- 报错中type为12时:数据库的pg_hba.conf文件配置有误。
- 解决方案:
- 问题现象:
- 场景二:(export场景)使用sqoop export命令抽取开源postgre到MRS hdfs或hive等。
- 问题现象:
使用sqoop命令查询postgre表可以,但是执行sqoop export命令倒数时报错:The authentication type 5 is not supported. Check that you have configured the pg_hba.conf file to include the client's IP address or subnet, and that it
- 问题根因:
在执行sqoop export命令时,会启动MapReduce任务,由于MRS Hadoop安装目录(/opt/Bigdata/FusionInsight_HD_*/1_*_DataNode/install/hadoop/share/hadoop/common/lib)下自带了postgre驱动包gsjdbc4-*.jar,与开源postgre服务不兼容导致报错。
- 解决方案:
1.在每台MRS core节点上移动驱动包gsjdbc4-*.jar到tmp目录下。
mv /opt/Bigdata/FusionInsight_HD_*/1_*_DataNode/install/hadoop/share/hadoop/common/lib/gsjdbc4-*.jar /tmp
2. 将/opt/Bigdata/client/Hive/Beeline/lib/gsjdbc4-*.jars删除 。
- 问题现象: