mysql安装innodb插件

1.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     |
| mysql_native_password      | ACTIVE | AUTHENTICATION     | NULL                 | GPL     |
| sha256_password            | ACTIVE | AUTHENTICATION     | 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     |

2.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_dynamic_loading   | YES      |
| have_geometry          | YES      |
| have_openssl           | YES      |
| have_profiling         | YES      |
| have_query_cache       | YES      |
| have_rtree_keys        | YES      |
| have_ssl               | YES      |
| have_statement_timeout | YES      |
| have_symlink           | DISABLED |
+------------------------+----------+
11 rows in set (0.00 sec)

| 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，

3.添加插件

mysql> INSTALL PLUGIN INNODB SONAME 'ha_innodb.so';