8) Error injecting constructor, java.lang.RuntimeException: java.sql.SQLException: null, message from server: "Host 'ambari0.cloud' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" ...【阅读全文】
近期帮助一个朋友解决一个报错,在启动hadoop的时候报错,如下:Exception in thread "main" java.lang.NoClassDefFoundError: javax/net/SocketFactory at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassL...【阅读全文】
下面是一个本地数据文件加载到hive表中的例子1.在hxl数据库下创建表hive> create table tb_emp_info > (id int, > name string, > age int, > tel string) > ROW FORMAT DELIMITED > FIEL...【阅读全文】