轉：zx老師

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alter database hive character set latin1;
ALTER TABLE hive.* DEFAULT CHARACTER SET latin1;
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windows安裝mysql時候，選的字元編碼為utf-8, hive只認識latin1。  也可以在新建資料庫時候，選擇編碼格式。

1.安裝hive
CREATE USER 'hive'@'%' IDENTIFIED BY '123456';
GRANT all privileges ON hive.* TO 'hive'@'%';
flush privileges;


2.將配置好的hive-site.xml放入$SPARK-HOME/conf目錄下


3.啟動spark-shell時指定mysql連線驅動位置
bin/spark-shell \
 --master spark://node1.itcast.cn:7077 \
 --executor-memory 1g \
 --total-executor-cores 2 \
 --driver-class-path /usr/local/apache-hive-0.13.1-bin/lib/mysql-connector-java-5.1.35-bin.jar 


4.使用sqlContext.sql呼叫HQL
sqlContext.sql("select * from spark.person limit 2")


或使用org.apache.spark.sql.hive.HiveContext
import org.apache.spark.sql.hive.HiveContext
val hiveContext = new HiveContext(sc)
hiveContext.sql("select * from spark.person")

hive.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
-->
<configuration>
	<property>
	  <name>javax.jdo.option.ConnectionURL</name>
	  <value>jdbc:mysql://172.16.0.1:3306/hive?createDatabaseIfNotExist=true</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>hive</value>
	  <description>username to use against metastore database</description>
	</property>

	<property>
	  <name>javax.jdo.option.ConnectionPassword</name>
	  <value>123456</value>
	  <description>password to use against metastore database</description>
	</property>
</configuration>