impala installation notes (Ubuntu)

1.Override

• 1.With Impala, you can query data, whether stored in HDFS or Apache HBase – including SELECT, JOIN, and aggregate functions – in real time
• 2.Furthermore, Impala uses the same metadata, SQL syntax (Hive SQL), ODBC driver, and user interface (Hue Beeswax) as Apache Hive, providing a familiar and unified platform for batch-oriented or real-time queries

2. Installation

• https://www.jianshu.com/p/e486b47f750d
• https://blog.csdn.net/yubeihong/article/details/52583338

     1.impala-state-store   -- 协调服务 主节点
         2.impala-catalog --名称服务 主节点
         3.impala-server(impalad)  节点服务 子节点
         4.impala-shell 交互服务 可以部署在任意几点上
     

• Copy core-site.xml hdfs-site.xml and hive-site.xml to /etc/impala/conf