mysql 安装innodb插件
可以用 show engines;或者show plugins;来查看mysql> show plugins;+------------+--------+----------------+---------+---------+| Name | Status | Type | Library | License |+------------+--------+----------------+---------+---------+| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL || CSV | ACTIVE | STORAGE ENGINE | NULL | GPL || MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL || MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |+------------+--------+----------------+---------+---------+5 rows in set (0.00 sec) 方法一： 在configure的时候加上–with-plugins=innobase (或all) 如果要添多个插件，用半角逗号隔开方法二：
如果mysql已经编译好了，又不想重新编译，可以安装插件，innodb就是一个插件，安装好mysql后也是可以添加的。
1，查看一下，mysql配置是不是支持动态添加插件
mysql> show variables like "have_%";+----------------------+-------+| Variable_name | Value |+----------------------+-------+| have_compress | YES || have_crypt | YES || have_csv | YES || have_dynamic_loading | YES | //在这里是YES表示是支持的如果是no呢，就不太好办，因为have_dynamic_loading是只读变量，mysql> set have_dynamic_loading=1; ERROR 1238 (HY000): Variable ‘have_dynamic_loading’ is a read only variable
不过一般情况下都是YES，2，添加插件mysql> INSTALL PLUGIN INNODB SONAME 'ha_innodb.so'; //提示打不开文件，没有权限ERROR 1126 (HY000): Can't open shared library '/usr/local/mysql/lib/mysql/plugin/ha_innodb.so' (errno: 13 cannot restore segment prot after reloc: Permission denied)上面报没有权限错误，搞得我很郁闷，解决办法如下：root@ubuntu:/usr/local/mysql# find . -type d -print |grep -i plugin //查看一下插件目录对不对./lib/mysql/pluginroot@ubuntu:/usr/local/mysql# chcon -t texrel_shlib_t /usr/local/mysql/lib/mysql/plugin/ha_innodb.sochcon: 部分关联无法应用于文件“/usr/local/mysql/lib/mysql/plugin/ha_innodb.so”用chcon也报错，我查一下是因为我没有安装selinuxroot@ubuntu:/usr/local/mysql# whereis selinux selinux:
selinux我根本没有安装，如果个人用，这个也不需要，没办法装一下，装完后chcon就不报错了。安装以下几个mysql> install plugin INNODB soname "ha_innodb.so";mysql> install plugin INNODB_TRX soname "ha_innodb.so";mysql> install plugin INNODB_LOCKS soname "ha_innodb.so";mysql> install plugin INNODB_LOCK_WAITS soname "ha_innodb.so";mysql> install plugin INNODB_CMP soname "ha_innodb.so";mysql> install plugin INNODB_CMP_RESET soname "ha_innodb.so";mysql> install plugin INNODB_CMPMEM soname "ha_innodb.so";mysql> install plugin INNODB_CMPMEM_RESET soname "ha_innodb.so" 安装好后，在用 show engines;或者show plugins;来查看
mysql> show plugins;+---------------------+--------+--------------------+---------+---------+| Name | Status | Type | Library | License |+---------------------+--------+--------------------+---------+---------+| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL || CSV | ACTIVE | STORAGE ENGINE | NULL | GPL || MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL || InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL || INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCKS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCK_WAITS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |+---------------------+--------+--------------------+---------+---------+13 rows in set (0.00 sec)
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