bin/sqoop import \--connect jdbc:mysql://sfbg101:3306/gmall \--username root \--password 123456 \--table activity_info \--num-mappers 1 \--hive-import \--hive-overwrite \--hive-drop-import-delims \--h

没有HiveDriver的jar包<!-- https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc --><dependency><groupId>org.apache.hive</groupId><artifactId>hive-jdbc</artifactId&g

用jps查看java进程，发现没有DFSZKFailoverController进程格式化zk,在zookeeper上创建hadoop-ha节点（就是目录）hdfs zkfc -formatZK启动zkfc（在所有namenode节点上）hadoop-daemon.sh start zkfc刷新namenode，会自动选出activehdfs haadmin -failover nn1 nn2ht