确保 libjemalloc  高于 3.3.0 
 [root@fund-mgmt-db-mog-2 ~]# yum list |grep jemalloc
jemalloc.x86_64                            3.6.0-1.el7                 @percona-release-x86_64
jemalloc-debuginfo.x86_64                  3.3.1-1.el7                 percona-release-x86_64
jemalloc-devel.x86_64                      3.6.0-1.el7                 percona-release-x86_64

一定要大页支持，才能启动 tokudb
echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag

安装tokudb包
yum -y UNINSTALL Percona-Server-tokudb-57.x86_64

让 tokudb 引擎生效
ps_tokudb_admin --enable -uroot -p###### -S /home/mysql/my3313/run/mysql.sock -P 3313

mysql> show engines;
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+
| Engine             | Support | Comment                                                                    | Transactions | XA   | Savepoints |
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+
| InnoDB             | DEFAULT | Percona-XtraDB, Supports transactions, row-level locking, and foreign keys | YES          | YES  | YES        |
| CSV                | YES     | CSV storage engine                                                         | NO           | NO   | NO         |
| MEMORY             | YES     | Hash based, stored in memory, useful for temporary tables                  | NO           | NO   | NO         |
| BLACKHOLE          | NO      | /dev/null storage engine (anything you write to it disappears)             | NULL         | NULL | NULL       |
| MRG_MYISAM         | YES     | Collection of identical MyISAM tables                                      | NO           | NO   | NO         |
| TokuDB             | YES     | Percona TokuDB Storage Engine with Fractal Tree(tm) Technology             | YES          | YES  | YES        |
| PERFORMANCE_SCHEMA | YES     | Performance Schema                                                         | NO           | NO   | NO         |
| ARCHIVE            | YES     | Archive storage engine                                                     | NO           | NO   | NO         |
| MyISAM             | YES     | MyISAM storage engine                                                      | NO           | NO   | NO         |
| FEDERATED          | NO      | Federated MySQL storage engine                                             | NULL         | NULL | NULL       |
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+
10 rows in set (0.00 sec)

-- 卸载 tokudb

UNINSTALL PLUGIN tokudb ;
UNINSTALL PLUGIN tokudb_file_map ;
UNINSTALL PLUGIN tokudb_fractal_tree_info  ;
UNINSTALL PLUGIN tokudb_fractal_tree_block_map ;
UNINSTALL PLUGIN tokudb_trx  ;
UNINSTALL PLUGIN tokudb_locks ;
UNINSTALL PLUGIN tokudb_lock_waits;
UNINSTALL PLUGIN tokudb_background_job_status;