1.mysql5.7.17安装在/usr/local/mysql目录里面，也可以安装在其他地方 （安装包最好与Linux系统一样，eg;32位的就是“mysql-5.7.17-linux-glibc2.5-i686.tar.gz”，官网可下载）
2.解压并复制
tar -xvf mysql-5.7.17-linux-glibc2.5-i686.tar.gz
mv mysql-5.7.17-linux-glibc2.5-i686.tar.gz/* /usr/local/mysql/
3.创建data目录（很重要！)
mkdir /usr/local/mysql/data
4.创建mysql用户和修改权限
groupadd mysql
chown -R mysql.mysql /usr/local/mysql/
5.初始化数据
- [root@localhost mysql] ./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
- 2016-01-20 02:47:35 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
- 2016-01-20 02:47:45 [WARNING] The bootstrap log isn't empty:
- 2016-01-20 02:47:45 [WARNING] 2016-01-19T18:47:36.732678Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead
- 2016-01-19T18:47:36.750527Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
- 2016-01-19T18:47:36.750560Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
6. 复制配置文件到 /etc/my.cnf
- cp -a ./support-files/my-default.cnf /etc/my.cnf (选择y)
7. mysql的服务脚本放到系统服务中
- cp -a ./support-files/mysql.server /etc/init.d/mysqld
- 修改my.cnf文件 （vim /etc/my.cnf）
- # These are commonly set, remove the # and set as required.
- [mysqld]
- basedir = /usr/local/mysql
- datadir = /usr/local/mysql/data
- port = 3306
- # server_id = .....
- socket = /tmp/mysql.sock
- character-set-server = utf8
- # Remove leading # to set options mainly useful for reporting servers.
- # The server defaults are faster for transactions and fast SELECTs.
- # Adjust sizes as needed, experiment to find the optimal values.
- # join_buffer_size = 128M
- # sort_buffer_size = 2M
- # read_rnd_buffer_size = 2M
8.启动mysql
- service mysqld start
- ps -ef #查看是启动
9.查看初始化自动生成的密码：
cd /root
ls -a
cat /root/.mysql_secret （记住并复制下来，等会登陆mysql需要）
10.进入mysql：bin/mysql -uroot -p （把刚刚复制的密码粘贴上来）
11.登录后重置root密码
mysql> SET PASSWORD FOR 'root'@localhost = PASSWORD('root');
Query OK, 0 rows affected, 1 warning (0.00 sec)
出现这个错误
[root@master mysql]# service mysqld start
Starting MySQL.2017-07-06T06:21:03.509730Z mysqld_safe error: log-error set to '/usr/local/mysql/data/log/mysql/mysql.log', however file don't exists. Create writable for user 'mysql'.
ERROR! The server quit without updating PID file (/usr/local/mysql/data/master.pid).
解决方案：把以前的data删掉，重新建立 data文件夹
然后：./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
然后：chown -R mysql.mysql /usr/local/mysql/data/
9：安装HIVE
Hive环境搭建
1）Hive下载：http://archive.cloudera.com/cdh5/cdh/5/
wget http://archive.cloudera.com/cdh5/cdh/5/hive-1.1.0-cdh5.7.0.tar.gz
2）解压
tar -zxvf hive-1.1.0-cdh5.7.0.tar.gz -C ~/app/
3）配置
系统环境变量(~/.bahs_profile)
export HIVE_HOME=/home/hadoop/app/hive-1.1.0-cdh5.7.0
export PATH=$HIVE_HOME/bin:$PATH
hive-env.sh
HADOOP_HOME=/usr/local/hadoop
hive-site.xml
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://localhost:3306/sparksql?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>root</value>
</property>
4）拷贝mysql驱动到$HIVE_HOME/lib/
mysql-connector-java-5.0.8-bin.jar
5)初始化数据库
schematool -initSchema -dbType mysql
6）启动hive: $HIVE_HOME/bin/hive
hdfs dfsadmin -safemode leave
