Percona Server 5.6 安装TokuDB

• 系统：Red Hat Enterprise Linux Server release 6.3 (Santiago)
• 数据库：Percona-Server-5.6.29-rel76.2-Linux.x86_64.ssl101.tar.gz

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1. 准备

libjemalloc library

安装 jemalloc，确保 jemalloc 的版本在3.3.0 或者更高。通过yum或者rpm包安装的MySQL5.6 需要额外安装 Percona-Server-tokudb-56-5.6.36-rel82.1.el6.x86_64.rpm 包，安装过程中会自动装上 jemalloc，但是通过 Percona-Server-5.6.29-rel76.2-Linux.x86_64.ssl101.tar.gz 安装的MySQL就方便的多。

在 $MYSQL_HOME/lib/mysql/ 下有 jemalloc

[mysql@dbmspressd201 ~]$ ll lib/mysql/
total 1856
lrwxrwxrwx 1 mysql mysql      16 Aug 11 17:07 libjemalloc.so -> libjemalloc.so.1
-rwxr-xr-x 1 mysql mysql 1893761 Aug 11 17:07 libjemalloc.so.1
drwxr-xr-x 3 mysql mysql    4096 Aug 11 17:07 plugin

直接修改 my.cnf 文件即可

[mysqld_safe]
malloc-lib=/home/mysql/lib/mysql/libjemalloc.so.1

配置完成后，需要重启数据库

$ /home/mysql/bin/mysqld_safe --defaults-file=/home/mysql/etc/my.cnf &
[1] 2587
$ 170813 17:06:00 mysqld_safe Adding '/home/mysql/lib/mysql/libjemalloc.so.1' to LD_PRELOAD for mysqld
170813 17:06:00 mysqld_safe Logging to '/mysql/data/mysql_error.err'.
170813 17:06:00 mysqld_safe Starting mysqld daemon with databases from /mysql/data/

Transparent huge pages

transparent huge pages 打开的时候，TokuDB是无法使用的

cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
always [never]

需要用 root 权限执行以下操作，来关闭 transparent huge page

[root@dbmspressd201 ~]# echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
[root@dbmspressd201 ~]# echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag

不关闭的话，报错日志如下

2017-08-13 17:06:04 3577 [ERROR] TokuDB: Huge pages are enabled, disable them before continuing

2017-08-13 17:06:04 3577 [ERROR] ************************************************************
2017-08-13 17:06:04 3577 [ERROR]
2017-08-13 17:06:04 3577 [ERROR]                         @@@@@@@@@@@
2017-08-13 17:06:04 3577 [ERROR]                       @@'         '@@
2017-08-13 17:06:04 3577 [ERROR]                      @@    _     _  @@
2017-08-13 17:06:04 3577 [ERROR]                      |    (.)   (.)  |
2017-08-13 17:06:04 3577 [ERROR]                      |             ` |
2017-08-13 17:06:04 3577 [ERROR]                      |        >    ' |
2017-08-13 17:06:04 3577 [ERROR]                      |     .----.    |
2017-08-13 17:06:04 3577 [ERROR]                      ..   |.----.|  ..
2017-08-13 17:06:04 3577 [ERROR]                       ..  '      ' ..
2017-08-13 17:06:04 3577 [ERROR]                         .._______,.
2017-08-13 17:06:04 3577 [ERROR]
2017-08-13 17:06:04 3577 [ERROR] TokuDB will not run with transparent huge pages enabled.
2017-08-13 17:06:04 3577 [ERROR] Please disable them to continue.
2017-08-13 17:06:04 3577 [ERROR] (echo never > /sys/kernel/mm/transparent_hugepage/enabled)
2017-08-13 17:06:04 3577 [ERROR]
2017-08-13 17:06:04 3577 [ERROR] ************************************************************
2017-08-13 17:06:04 3577 [ERROR] Plugin 'TokuDB' init function returned error.
2017-08-13 17:06:04 3577 [ERROR] Plugin 'TokuDB' registration as a STORAGE ENGINE failed.
2017-08-13 17:06:04 3577 [Note] Shutting down plugin 'TokuDB'

2. 安装

2.1 通过yum安装

yum install Percona-Server-tokudb-56.x86_64

2.2 直接启用TokuDB

使用 $MYSQL_HOME/bin 下的 ps_tokudb_admin 安装（5.6.22-72.0后引入）

./ps_tokudb_admin --enable -uroot -h127.1
Checking SELinux status...
INFO: SELinux is disabled.

Checking if Percona Server is running with jemalloc enabled...
INFO: Percona Server is running with jemalloc enabled.

Checking transparent huge pages status on the system...
INFO: Transparent huge pages are currently disabled on the system.

Checking if thp-setting=never option is already set in config file...
INFO: Option thp-setting=never is set in the config file.

Checking TokuDB engine plugin status...
INFO: TokuDB engine plugin is not installed.

Installing TokuDB engine...
INFO: Successfully installed TokuDB engine plugin.

5.6.29的安装与官网的安装结果显示的稍有不同，以下贴出官网的结果

Checking if Percona server is running with jemalloc enabled...
>> Percona server is running with jemalloc enabled.

Checking transparent huge pages status on the system...
>> Transparent huge pages are currently disabled on the system.

Checking if thp-setting=never option is already set in config file...
>> Option thp-setting=never is not set in the config file.
>> (needed only if THP is not disabled permanently on the system)

Checking TokuDB plugin status...
>> TokuDB plugin is not installed.

Adding thp-setting=never option into /etc/mysql/my.cnf
>> Successfuly added thp-setting=never option into /etc/mysql/my.cnf

Installing TokuDB engine...
>> Successfuly installed TokuDB plugin.

查看安装结果

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

查看 TokuDB 的版本

mysql> SELECT @@tokudb_version;
+------------------+
| @@tokudb_version |
+------------------+
| 5.6.29-76.2      |
+------------------+
1 row in set (0.00 sec)

手动安装

Percona Server 5.6.22-71.0 的时候。。。可以手动安装。。。木有测试过。。。

INSTALL PLUGIN tokudb SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_file_map SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_fractal_tree_info SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_fractal_tree_block_map SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_trx SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_locks SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_lock_waits SONAME 'ha_tokudb.so';
INSTALL PLUGIN tokudb_background_job_status SONAME 'ha_tokudb.so'