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                (1)Spark SQL CLI是在本地模式下使用Hive元存儲服務執行SQL語句的簡便工具,等同于Hive CLI(old CLI)、Beeline CLI(new CLI); (2)注意,Spark SQL CLI無法與thrift JDBC服務器通信; (3)使用Spark SQL CLI前,請將 hive-site.xml、hdfs-site.xml、core-site.xml復制到 $SPARK_HOME/conf 目錄下,或者在 $SPARK_HOME/conf 目錄下創建它們的軟鏈接;然后重啟Spark。 ```shell [root@hadoop101 conf]# pwd /opt/install/spark/conf [root@hadoop101 conf]# ln -s /opt/install/hadoop/etc/hadoop/hive-site.xml hive-site.xml [root@hadoop101 conf]# ln -s /opt/install/hadoop/etc/hadoop/hdfs-site.xml hdfs-site.xml [root@hadoop101 conf]# ln -s /opt/install/hadoop/etc/hadoop/core-site.xml core-site.xml ``` ![](https://img.kancloud.cn/39/dc/39dc4d0d8229da636203b604a3da58d0_1146x136.jpg) (4) Spark SQL CLI就是Hive CL,所以SQL語句的使用與Hive一樣; (5)啟動Spark SQL CLI,請在Spark目錄中運行 `./bin/spark-sql`; ```shell -- 啟動hdfs # ./sbin/start-dfs.sh -- 啟動Spark # ./sbin/start-all.sh -- 啟動Spark SQL CLI方式1:以本地模式啟(local)動 # ./bin/spark-sql --driver-class-path /opt/install/hive/lib/mysql-connector-java-5.1.31.jar -- 啟動Spark SQL CLI方式2:以Spark集群模式啟動 # ./bin/spark-sql --master spark://hadoop101:7077 --driver-class-path /opt/install/hive/lib/mysql-connector-java-5.1.31.jar spark-sql> show databases; -- 查看Hive中的數據庫 default events events2 itcast_ods ods_tags_dat sales_dw ```
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