本文介绍brew install hive并修改默认的metastore存储方案,改Derby数据库为mysql的方法以及可能遇到的问题的解决方案。
1. 通过homebrew安装hive
1
|
brew install hive |
2. 添加hadoop和hive的环境变量
1
2
3
4
5
6
|
sudo vim ~/.bash_profile source ~/.bash_profile |
3. 下载mysql connector
1
2
3
|
curl -L 'http://www.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.22.tar.gz/from/http://mysql.he.net/' | tar xz sudo cp mysql-connector-java-5.1.15 /mysql-connector-java-5 .1.22-bin.jar /usr/local/Cellar/hive/hive .version.no /libexec/lib/ |
4. 创建mysql metastore
1
2
3
4
|
mysql> CREATE DATABASE metastore; mysql> USE metastore; mysql> CREATE USER 'hiveuser' @ 'localhost' IDENTIFIED BY 'password' ; mysql> GRANT SELECT , INSERT , UPDATE , DELETE , ALTER , CREATE ON metastore.* TO 'hiveuser' @ 'localhost' ; |
5. 配置hive的配置文件
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
cp hive-default.xml.template hive-site.xml #添加或者编辑如下内容 <property> <name>javax.jdo.option.ConnectionURL< /name > <value>jdbc:mysql: //localhost/metastore < /value > < /property > <property> <name>javax.jdo.option.ConnectionDriverName< /name > <value>com.mysql.jdbc.Driver< /value > < /property > <property> <name>javax.jdo.option.ConnectionUserName< /name > <value>hiveuser< /value > < /property > <property> <name>javax.jdo.option.ConnectionPassword< /name > <value>password< /value > < /property > <property> <name>datanucleus.fixedDatastore< /name > <value> false < /value > < /property > |
6. 测试hive是否工作
1
2
3
|
$ hive; hive > show tables; hive> create table temp_table temp_col string; |
7. Revoke few permissions on the mysql metastore
1
2
|
$ mysql mysql> REVOKE ALTER,CREATE ON metastore.* FROM 'hiveuser' @ 'localhost' ; |
9. Further troubleshooting :
(a) If you get a bin log error saying statement format is not support. Login to your mysql console as root
$ mysql -uroot mysql > SET GLOBAL binlog_format = 'ROW';
(b) You could also try reading the logs as follows. Logs can be emitted to the bash prompt while running hive by setting hive.root.logger to INFO,console.
$ hive -hiveconf hive.root.logger=INFO,console
(c)You could also read the raw hive logs which is usually located at /tmp/user_name/hive.log
(d)If you still have any errors, feel free to comment.
在配置完成后,可能遇到的问题解决方案:
一,Reference error
解决方案:
使用sequel pro, 修改hive用户的权限,添加Reference的global权限。
二,启动hive时遇到的" Caused by: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D "
解决方案:
修改hive-site.xml 配置中的以下key value即可:
<name>hive.exec.scratchdir</name>
<value>/tmp/hive-${user.name}</value>
<name>hive.exec.local.scratchdir</name>
<value>/tmp/${user.name}</value>
<name>hive.downloaded.resources.dir</name>
<value>/tmp/${user.name}_resources</value>
<name>hive.scratch.dir.permission</name>
<value>733</value>
restart hive metastore and hiveserver2