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mysql安装innodb插件_MySQL

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Release: 2016-06-01 13:45:12
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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/plugin
root@ubuntu:/usr/local/mysql# chcon -t texrel_shlib_t /usr/local/mysql/lib/mysql/plugin/ha_innodb.so
chcon: 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selinux
root@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)

作者 “huoxiujian”

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