一、hive配置文件?

在spak/conf目錄添加hive-site.xml配置，設置mysql作為元數據存儲的數據庫

<?xml version="1.0" encoding="UTF-8" standalone="no"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration><property><name>javax.jdo.option.ConnectionURL</name><value>jdbc:mysql://192.168.150.1:3306/spark_metadata_db?createDatabaseIfNotExist=true&amp;characterEncoding=UTF-8</value><description>JDBC connect string for a JDBC metastore</description></property><property><name>javax.jdo.option.ConnectionDriverName</name><value>com.mysql.jdbc.Driver</value><description>Driver class name for a JDBC metastore</description></property><property><name>javax.jdo.option.ConnectionUserName</name><value>root</value><description>Username to use against metastore database</description></property><property><name>javax.jdo.option.ConnectionPassword</name><value>admin</value><description>password to use against metastore database</description></property><!-- hive查詢時輸出列名 --><property><name>hive.cli.print.header</name><value>true</value></property><!-- 顯示當前數據庫名 --><property><name>hive.cli.print.current.db</name><value>true</value></property> </configuration>

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二、啟動spark-sql shell

--driver-class-path 是spark元數據存儲的驅動類路徑，這里使用mysql作為metastore，故使用mysql-connector-java-5.1.26-bin.jar?

--jars 是executer執行器的額外添加類的路徑，這里使用mysql的test表進行操作，故使用mysql-connector-java-5.1.26-bin.jar?

--total-executor-cores? 啟動的核數，默認是所有核數

--executor-memory? 每個work分配的內存，默認是work的所有內存

cd ~/software/spark-2.4.4-bin-hadoop2.6 bin/spark-sql --master spark://hadoop01:7077,hadoop02:7077,hadoop03:7077 --driver-class-path /home/mk/mysql-connector-java-5.1.26-bin.jar --jars /home/mk/mysql-connector-java-5.1.26-bin.jar --total-executor-cores 2 --executor-memory 1g

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啟動shell前：

啟動shell后：

??mysql數據庫里面創建了spark_metadata_db

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三、執行sql

show tables;create table test(id int, name string) USING org.apache.spark.sql.jdbc options(url 'jdbc:mysql://192.168.150.1:3306/spark-mysql?user=root&password=admin', dbtable 'test_a');show tables;select * from test;insert into test values(4, 'd'), (5, 'e'), (6, 'f');select * from test;

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總結

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