hadoop3: WARNING: nodemanager did not stop gracefully after 5 seconds: Trying to kill with kill -9
spark3.0教程:配置、启动Thrift JDBC Server
10000端口:hive hiveserver2端口
9083端口:hive metastore服务
spark3.0教程-Spark on Hive:scala代码通过 Spark 查询 Hive中的表
spark3.0教程-SparkSQL:Spark on Hive 启动
spark3.0教程-SparkSQL:连接MySQL,读取数据
spark3.0教程-SparkSQL:不创建表,直接查询(适合json)
Parquet格式文件
spark3.0教程-SparkSQL:Dataset转RDD