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本篇内容介绍了“Hive2的安装配置方法”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
一、环境依赖
Hive必须运行在Hadoop之上,则需要先安装Hadoop环境
http://my.oschina.net/u/204498/blog/519789
二、安装Hive
1.下载Hive
http://apache.mirrors.ionfish.org/hive/
我安装的是apache-hive-1.2.1-bin.tar.gz
[hadoop@hftclclw0001 ~]$ pwd /home/hadoop [hadoop@hftclclw0001 ~]$ wget http://apache.mirrors.ionfish.org/hive/hive-1.2.1/apache-hive-1.2.1-bin.tar.gz [hadoop@hftclclw0001 ~]$ ll total 637256 drwx------ 10 hadoop root 4096 Oct 27 02:22 apache-hive-1.2.1-bin -rw------- 1 hadoop root 92834839 Jun 26 18:34 apache-hive-1.2.1-bin.tar.gz drwx------ 3 hadoop root 4096 Oct 27 09:05 data drwx------ 11 hadoop root 4096 Oct 21 03:20 hadoop-2.7.1 -rw------- 1 hadoop root 210606807 Oct 20 09:00 hadoop-2.7.1.tar.gz drwx------ 2 hadoop root 4096 Oct 23 02:08 install-sqoop drwx------ 13 hadoop root 4096 Oct 20 09:22 spark-1.5.1-bin-hadoop2.6 -rw------- 1 hadoop root 280901736 Oct 20 09:19 spark-1.5.1-bin-hadoop2.6.tgz drwx------ 22 hadoop root 4096 Oct 23 02:08 sqoop-1.99.6-bin-hadoop200 -rw------- 1 hadoop root 68177818 May 5 22:34 sqoop-1.99.6-bin-hadoop200.tar.gz [hadoop@hftclclw0001 ~]$ cd apache-hive-1.2.1-bin/conf/ [hadoop@hftclclw0001 conf]$ pwd /home/hadoop/apache-hive-1.2.1-bin/conf [hadoop@hftclclw0001 conf]$ vi hive-env.sh ... ... HADOOP_HOME=/home/hadoop/hadoop-2.7.1 =>配置Hadoop_Home export HIVE_CONF_DIR=/home/hadoop/apache-hive-1.2.1-bin/conf =>配置HIVE_conf_home export HIVE_AUX_JARS_PATH=/home/hadoop/apache-hive-1.2.1-bin/lib/ #我使用了mysql作为metastore ,则需要在lib目录下添加mysql的驱动 [hadoop@hftclclw0001 lib]$ pwd /home/hadoop/apache-hive-1.2.1-bin/lib [hadoop@hftclclw0001 lib]$ ll | grep mysql -rw------- 1 hadoop root 848401 Oct 27 01:48 mysql-connector-java-5.1.25-bin.jar [hadoop@hftclclw0001 conf]$ vi hive-site.xml [hadoop@hftclclw0001 conf]$ cat hive-site.xml <?xml version="1.0"?> <configuration> <property> <name>hive.metastore.local</name> <value>false</value> =>metastore我的mysql不是在该server上 </property> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://{ip:port}/{databases}</value> => mysql服务的ip和端口号 </property> <property> <name>javax.jdo.option.ConnectionDriveName</name> <value>com.mysql.jdbc.Driver</value> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>{username}</value> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>{password}</value> </property> <property> <name>hive.metastore.warehouse.dir</name> <value>/hive/warehouse</value> =>hive的仓库目录,需要在HDFS上创建,并修改权限 </property> <property> <name>hive.metastore.uris</name> <value>thrift://{ip}:{port}</value> =>本机ip和端口号,启动metastore服务 </property> </configuration> [hadoop@hftclclw0001 conf]$ vi hive-log4j.properties => Log4j的配置,可以修改日志目录 ...
2.启动metastore
[hadoop@hftclclw0001 bin]$ pwd /home/hadoop/apache-hive-1.2.1-bin/bin [hadoop@hftclclw0001 bin]$ ./hive --service metastore & [hadoop@hftclclw0001 bin]$ ps ax|grep metastore ... ...
3.启动HiveServer2
[hadoop@hftclclw0001 bin]$ pwd /home/hadoop/apache-hive-1.2.1-bin/bin [hadoop@hftclclw0001 bin]$ ./hive --service hiveserver2 & [hadoop@hftclclw0001 bin]$ ps ax|grep HiveServer2 ... ...
4.启动shell 或是 beeline
[hadoop@hftclclw0001 bin]$ ./hive shell ... ...
三、metastore
http://www.cloudera.com/content/www/en-us/documentation/archive/cdh/4-x/4-2-0/CDH4-Installation-Guide/cdh5ig_topic_18_4.html
1.内置模式:将数据保存在内置的Derby数据库中,这种方式最简单,但是Derby每次只能访问一个数据文件。
Drive ==> Metastore ==> Derby
2.本地模式:将元数据保存在本地的独立数据库(如mysql)等
Driver ===> Metastore
Driver ===> Metastore ===> DB
Driver ===> Metastore
每个server都需要配置metastore,并启动metastore服务
3.远程模式:使用thrift访问metastore
Client1
Client2 ===> Metastore ===> DB
Client3
4.配置:
如上述配置,我们已经启动了metastore服务在上述hftclclw0001机器上, 我们在另一台server上,如hftclcld0001机器上,安装hive,配置如上述配置一直,仅仅修改hive-site.xml如下: <?xml version="1.0"?> <configuration> <property> <name>hive.metastore.uris</name> <value>thrift://{ip}:{port}</value> =>hftclclw0001机器的ip和端口号 </property> </configuration> 即我们通过thrift协议,访问hftclclw0001上面的metastore,并访问hive的元数据 [root@hftclcld0001 apache-hive-1.2.1-bin]# pwd /home/hadoop/apache-hive-1.2.1-bin [root@hftclcld0001 apache-hive-1.2.1-bin]# ./bin/hive shell hive> hive> show databases; OK default hive =>能访问到hive的metastore,访问到元数据(我们之前创建的) human_resources Time taken: 0.388 seconds, Fetched: 3 row(s) hive>
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