1. 程式人生 > >hive入門環境啟動測試實戰

hive入門環境啟動測試實戰

首先啟動hadoop(存放hive表資料),spark可以不用啟動

 /usr/local/hadoop/sbin/start-all.sh
 /usr/local/spark/sbin/start-all.sh

啟動mysql(metastore存hive元資料)

 檢查hive配置more hive-site.xml

<?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://localhost: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>hive</value>
    <description>password to use against metastore database</description>
  </property>
</configuration>

啟動hive

hive --service metastore

hive --service hiveserver2

測試

hive

show databases

create table test(a string, b int);

show tables;

desc test;

查詢mysql元資料資訊

mysql -uroot -phadoop hive

select TBL_ID, CREATE_TIME, DB_ID, OWNER, TBL_NAME,TBL_TYPE from TBLS;

查詢hadoop中test表儲存

http://10.0.3.101:50070/explorer.html#/user/hive/warehouse

hadoop fs -ls /user/hive/warehouse

hadoop fs -ls /user/hive/warehouse/test

hadoop fs -cat /user/hive/warehouse/test/000000_0