Hive部署java
以上,是参考《Hadoop海量数据处理 技术详解与项目实战》mysql
Hive搭建模式
一、local模式此模式链接到一个In-memory 的数据库Derby,通常用于Unit Test。sql
这种方式是最简单的存储方式,只须要在hive-site.xml作以下配置即可数据库
<property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:derby:;databaseName=metastore_db;create=true</value> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>org.apache.derby.jdbc.EmbeddedDriver</value> </property> <property> <name>hive.metastore.local</name> <value>true</value> </property> <property> <name>hive.metastore.warehouse.dir</name> <value>/user/hive/warehouse</value> </property>
注:使用derby存储方式时,运行hive会在当前目录生成一个derby文件和一个metastore_db目录。这种存储方式的弊端是在同一个目录下同时只能有一个hive客户端能使用数据库,不然会提示错误apache
这种存储方式须要在本地运行一个mysql服务器,并做以下配置(下面两种使用mysql的方式,须要将mysql的jar包拷贝到$HIVE_HOME/lib目录下)。服务器
在hive-site.xml作以下配置
oop
<property> <name>hive.metastore.warehouse.dir</name> <value>/user/hive_remote/warehouse</value> </property> <property> <name>hive.metastore.local</name> <value>true</value> </property> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://localhost/hive_remote?createDatabaseIfNotExist=true</value> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>com.mysql.jdbc.Driver</value> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>hive</value> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>password</value> </property>
附:spa
安装mysql code
Yum install mysql-server -yserver
修改mysql权限:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123' WITH GRANT OPTION;
flush privileges;
删除多余会对权限形成影响的数据
刷新权限
[ERROR] Terminal initialization failed; falling back to unsupported
java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected
at jline.TerminalFactory.create(TerminalFactory.java:101)
错误的缘由: Hadoop jline版本和hive的jline不一致
这种存储方式须要在远端服务器运行一个mysql服务器,而且须要在Hive服务器启动meta服务。
<property> <name>hive.metastore.warehouse.dir</name> <value>/user/hive/warehouse</value> </property> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://192.168.57.6:3306/hive?createDatabaseIfNotExist=true</value> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>com.mysql.jdbc.Driver</value> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>hive</value> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>password</value> </property> <property> <name>hive.metastore.local</name> <value>false</value> </property> <property> <name>hive.metastore.uris</name> <value>thrift://192.168.1.188:9083</value> //当前服务器 </property>
将hive-site.xml配置文件拆为以下两部分
1)、服务端配置文件
<property> <name>hive.metastore.warehouse.dir</name> <value>/user/hive/warehouse</value> </property> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://192.168.57.6:3306/hive?createDatabaseIfNotExist=true</value> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>com.mysql.jdbc.Driver</value> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>root</value> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>123456</value> </property>
2)、客户端配置文件
<property> <name>hive.metastore.warehouse.dir</name> <value>/user/hive/warehouse</value> </property> <property> <name>hive.metastore.local</name> <value>false</value> </property> <property> <name>hive.metastore.uris</name> <value>thrift://192.168.57.5:9083</value> //服务器端 </property>
启动hive服务端程序
hive --service metastore
客户端直接使用hive命令便可
root@my188:~$ hive Hive history file=/tmp/root/hive_job_log_root_201301301416_955801255.txt hive> show tables; OK test_hive Time taken: 0.736 seconds hive>
客户端启动的时候要注意:
[ERROR] Terminal initialization failed; falling back to unsupported
java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected
at jline.TerminalFactory.create(TerminalFactory.java:101)
错误的缘由: Hadoop jline版本和hive的jline不一致