InnoDB Plugin Version command? - mysql

Question

Is there any way to make MySQL tell you what version of the InnoDB plugin it's running? I know you can look at the documentation, but I'm trying to verify a potential bug if the plugin jives with the mysql version installed.
mysql> show variables like '%version%';
+-------------------------+------------------------------+
| Variable_name | Value |
+-------------------------+------------------------------+
| protocol_version | 10 |
| version | 5.1.50-community-log |
| version_comment | MySQL Community Server (GPL) |
| version_compile_machine | x86_64 |
| version_compile_os | unknown-linux-gnu |
+-------------------------+------------------------------+

Answer 1

I found the answer, so I'll pass this along.
1.You must be running the InnoDB plugin instead of the built-in mysql innodb. To do this, you must make these config changes to your my.cnf:
ignore_builtin_innodb
plugin-load = innodb=ha_innodb_plugin.so;innodb_trx=ha_innodb_plugin.so;innodb_locks=ha_innodb_plugin.so;innodb_lock_waits=ha_innodb_plugin.so;innodb_cmp=ha_innodb_plugin.so;innodb_cmp_reset=ha_innodb_plugin.so;innodb_cmpmem=ha_innodb_plugin.so;innodb_cmpmem_reset=ha_innodb_plugin.so
innodb_fast_shutdown = 0
Note: Load individual plugins, but make sure no spaces between the ";". Also innodb_fast_shutdown is optional, but recommended.
2.You must restart mysqld to take the new config changes.
3.Using your SQL interface, execute: "SELECT ##innodb_version;"
mysql> SELECT ##innodb_version;
+------------------+
| ##innodb_version |
+------------------+
| 1.0.11 |
+------------------+
1 row in set (0.00 sec)
Reference URLs:
Getting the version:
http://dev.mysql.com/doc/refman/5.1/en/innodb-parameters.html#sysvar_innodb_version
Using the plugin engine
http://dev.mysql.com/doc/refman/5.1/en/replacing-builtin-innodb.html

Answer 2

When you have installed InnoDB Plugin you can check out the version by performing the following commands
SELECT * FROM information_schema.plugins;
SELECT ##innodb_version;