如何开启MySQL的innodb引擎，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
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开启mysql的innodb引擎
环境：
mysql版本 5.1.51
os：rhel 5.4 32bit
mysql安装目录为/mysql
mysql 的数据目录/mysql/data
安装之前
[root@odb1 plugin]# pwd
/mysql/lib/mysql/plugin
[root@odb1 plugin]#
[root@odb1 plugin]# ls -l ha_innodb*
-rw-r--r-- 1 root root 6207320 Mar 26 01:04 ha_innodb.a
-rwxr-xr-x 1 root root 1005 Mar 26 01:04 ha_innodb.la
-rw-r--r-- 1 root root 7064416 Mar 26 01:04 ha_innodb_plugin.a
-rwxr-xr-x 1 root root 1054 Mar 26 01:04 ha_innodb_plugin.la
lrwxrwxrwx 1 root root 25 Mar 26 01:04 ha_innodb_plugin.so -> ha_innodb_plugin.so.0.0.0
lrwxrwxrwx 1 root root 25 Mar 26 01:04 ha_innodb_plugin.so.0 -> ha_innodb_plugin.so.0.0.0
-rwxr-xr-x 1 root root 5032879 Mar 26 01:04 ha_innodb_plugin.so.0.0.0
lrwxrwxrwx 1 root root 18 Mar 26 01:04 ha_innodb.so -> ha_innodb.so.0.0.0
lrwxrwxrwx 1 root root 18 Mar 26 01:04 ha_innodb.so.0 -> ha_innodb.so.0.0.0
-rwxr-xr-x 1 root root 4560527 Mar 26 01:04 ha_innodb.so.0.0.0
[root@odb1 plugin]#
[root@odb1 plugin]# ls -l ha_innodb*.so
lrwxrwxrwx 1 root root 25 Mar 26 01:04 ha_innodb_plugin.so -> ha_innodb_plugin.so.0.0.0
lrwxrwxrwx 1 root root 18 Mar 26 01:04 ha_innodb.so -> ha_innodb.so.0.0.0
[root@odb1 plugin]#
启动mysql服务器，然后安装innodb
mysql> show variables like '%plugin_dir%';
+---------------+---------------------------------+
| Variable_name | Value |
+---------------+---------------------------------+
| plugin_dir | /mysql/lib/mysql/plugin |
+---------------+---------------------------------+
1 row in set (0.00 sec)
mysql>
mysql> INSTALL PLUGIN InnoDB SONAME 'ha_innodb.so';
Query OK, 0 rows affected (0.52 sec)
mysql>
mysql> show engines;
+------------+---------+------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+------------+---------+------------------------------------------------------------+--------------+------+------------+
| CSV | YES | CSV storage engine | NO | NO | NO |
| InnoDB | YES | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
+------------+---------+------------------------------------------------------------+--------------+------+------------+
5 rows in set (0.00 sec)
mysql>
--执行如下命令时
INSTALL PLUGIN InnoDB SONAME 'ha_innodb.so';
err日志输出
[root@odb1 data]# pwd
/mysql/data
[root@odb1 data]#
[root@odb1 data]# ls -l
total 20556
-rw-rw---- 1 mysql mysql 10485760 Apr 2 21:18 ibdata1
-rw-rw---- 1 mysql mysql 5242880 Apr 2 21:18 ib_logfile0
-rw-rw---- 1 mysql mysql 5242880 Apr 2 21:18 ib_logfile1
drwx------ 2 mysql root 4096 Mar 26 01:17 mysql
-rw-rw---- 1 mysql mysql 409 Mar 27 20:53 odb1.log
-rw-rw---- 1 mysql root 15246 Apr 2 21:18 odb1.test.com.err
-rw-rw---- 1 mysql mysql 6 Apr 2 21:01 odb1.test.com.pid
drwx------ 2 mysql root 4096 Apr 2 19:04 test
drwx------ 2 mysql mysql 4096 Apr 2 19:10 test2
[root@odb1 data]#
more odb1.test.com.err
160402 21:01:25 mysqld_safe Starting mysqld daemon with databases from /mysql/data
160402 21:01:25 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead.
160402 21:01:25 [Warning] '--log_slow_queries' is deprecated and will be removed in a future release. Please use ''--slow_query_log'/'--slow_query_log_file'' instead.
160402 21:01:25 [Note] Event Scheduler: Loaded 0 events
160402 21:01:25 [Note] /mysql/libexec/mysqld: ready for connections.
Version: '5.1.51-log' socket: '/tmp/mysql.sock' port: 3306 Source distribution
InnoDB: The first specified data file ./ibdata1 did not exist:
InnoDB: a new database to be created!
160402 21:18:49 InnoDB: Setting file ./ibdata1 size to 10 MB
InnoDB: Database physically writes the file full: wait...
160402 21:18:49 InnoDB: Log file ./ib_logfile0 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile0 size to 5 MB
InnoDB: Database physically writes the file full: wait...
160402 21:18:49 InnoDB: Log file ./ib_logfile1 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile1 size to 5 MB
InnoDB: Database physically writes the file full: wait...
InnoDB: Doublewrite buffer not found: creating new
InnoDB: Doublewrite buffer created
InnoDB: Creating foreign key constraint system tables
InnoDB: Foreign key constraint system tables created
160402 21:18:49 InnoDB: Started; log sequence number 0 0
==================================================================================
启停mysql
[root@odb1 data]# service mysql start
Starting MySQL.[ OK ]
[root@odb1 data]#
[root@odb1 data]#
[root@odb1 data]# service mysql stop
Shutting down MySQL....[ OK ]
err日志输出
--启动
160402 21:27:20 mysqld_safe Starting mysqld daemon with databases from /mysql/data
160402 21:27:20 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead.
160402 21:27:20 [Warning] '--log_slow_queries' is deprecated and will be removed in a future release. Please use ''--slow_query_log'/'--slow_query_log_file'' instead.
160402 21:27:20 InnoDB: Started; log sequence number 0 44233
160402 21:27:20 [Note] Event Scheduler: Loaded 0 events
160402 21:27:20 [Note] /mysql/libexec/mysqld: ready for connections.
Version: '5.1.51-log' socket: '/tmp/mysql.sock' port: 3306 Source distribution
--关闭
160402 21:28:27 [Note] /mysql/libexec/mysqld: Normal shutdown
160402 21:28:27 [Note] Event Scheduler: Purging the queue. 0 events
160402 21:28:27 InnoDB: Starting shutdown...
160402 21:28:30 InnoDB: Shutdown completed; log sequence number 0 44233
160402 21:28:30 [Note] /mysql/libexec/mysqld: Shutdown complete
160402 21:28:30 mysqld_safe mysqld from pid file /mysql/data/odb1.test.com.pid ended
看完上述内容，你们掌握如何开启mysql的innodb引擎的方法了吗？如果还想学到更多技能或想了解更多相关内容，欢迎关注创新互联行业资讯频道，感谢各位的阅读！
