TokuDB 安装

安装TokuDB:

0､关闭内存大页

echo never > /sys/kernel/mm/transparent_hugepage/enabled

echo never > /sys/kernel/mm/transparent_hugepage/defrag

查看下

cat /sys/kernel/mm/transparent_hugepage/enabled

always madvise [never]

cat /sys/kernel/mm/transparent_hugepage/defrag

tokuDB内存分配需要jemalloc支持，因此使用之前需要安装jemalloc

yum install -y jemalloc

rpm -qa |grep jemalloc

jemalloc-3.6.0-1.el7.x86_64

rpm -ql jemalloc-3.6.0-1.el7.x86_64

/usr/bin/jemalloc.sh

/usr/lib64/libjemalloc.so.1

/usr/share/doc/jemalloc-3.6.0

/usr/share/doc/jemalloc-3.6.0/COPYING

/usr/share/doc/jemalloc-3.6.0/README

/usr/share/doc/jemalloc-3.6.0/VERSION

/usr/share/doc/jemalloc-3.6.0/jemalloc.html

1､从percona官网下载

https://www.percona.com/downloads/Percona-Server-LATEST/ wget https://www.percona.com/downloads/Percona-Server-LATEST/Percona-Server-5.7.21-21/binary/tarball/Percona-Server-5.7.21-21-Linux.x86_64.ssl101.tar.gz

tar xf Percona-Server-5.7.21-21-Linux.x86_64.ssl101.tar.gz

mv Percona-Server-5.7.21-21-Linux.x86_64.ssl101 tokudb57

mkdir /home/work/data/mysql3504

2､初如化

/home/work/tokudb57/bin/mysqld --defaults-file=/home/work/data/my3504.conf --basedir=/home/work/tokudb57/ --user=work --initialize-insecure

--initialize-insecure 初如化MySQL是空密码

--defaults-file= 指定配置文件,最好放在前面，不要放在最后

3､配置文件my3306.conf

加入：

[mysqld_safe]

thp-setting=never

malloc-lib=/usr/lib64/libjemalloc.so.1

3､启动

chown -R work:work /home/work/data/mysql3306/

改密码:

set password=password('123456');

/home/work/tokudb57/bin/mysqld_safe --defaults-file=/home/work/data/mysql3306/my3306.conf --user=work &

4､安装TokuDB

cd /home/work/tokudb57/bin/

ps_tokudb_admin --enable -u'root' -p -S /home/work/tmp/mysql3306.sock

/home/work/tokudb57/bin/ps_tokudb_admin --enable --user=root --password='' --socket=/home/work/tmp/mysql3306.sock

Enter password:

WARNING: This script is deprecated and will be removed in 8.0. You can use ps-admin script which has more functionality.

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 not set in the config file.

(needed only if THP is not disabled permanently on the system)
           

Checking TokuDB engine plugin status...

INFO: TokuDB engine plugin is not installed.

Adding thp-setting=never option into /etc/my.cnf

INFO: Successfully added thp-setting=never option into /etc/my.cnf

Installing TokuDB engine...

INFO: Successfully installed TokuDB engine plugin.

(root@(none))>show engines;
Engine	Support	Comment	Transactions	XA	Savepoints
PERFORMANCE_SCHEMA	YES	Performance Schema	NO
MRG_MYISAM		Collection of identical MyISAM tables
CSV		CSV storage engine
BLACKHOLE		/dev/null storage engine (anything you write to it disappears)
MyISAM		MyISAM storage engine
TokuDB		Percona TokuDB Storage Engine with Fractal Tree(tm) Technology
InnoDB	DEFAULT	Percona-XtraDB, Supports transactions, row-level locking, and foreign keys
ARCHIVE		Archive storage engine
MEMORY		Hash based, stored in memory, useful for temporary tables
FEDERATED		Federated MySQL storage engine	NULL

10 rows in set (0.00 sec)

此时InnoDB还是默认引擎 重启下server，并在my3306.conf [mysqld]添加如下配置:

------------- tokudb ---------------

default-storage-engine = TokuDB

tokudb_directio = on

tokudb_cache_size = 2G

tokudb_row_format = tokudb_lzma

tokudb_commit_sync = 0

tokudb_fsync_log_period = 1000

重启后TokuDB 就是默认存储引擎了

mysql> show engines;

错误:

一、 初始化错误

[ERROR] InnoDB: Expected to open 4 undo tablespaces but was able to find only 0 undo tablespaces.Set the innodb_undo_tablespaces parameter to the correct value and retry. Suggested value is 0

解决：

报错原因：

在初始化数据库的时候没有指定innodb_undo_tablespaces参数

解决方法：

在初始化数据库的时候写上--defaults-file参数，在对应的配置文件中写上对应的innodb_undo_tablespaces参数

二、tokudb安装:

[email protected]:/home/work/data# ps_tokudb_admin --enable -u'root' -p'123456' -h 127.0.0.1 -P 3504

ERROR: Failed to list mysql plugins! Please check username, password and other options for connecting to server...

用户名和密码都是正常的

解决:

三、 Percona Server 未启动

/home/work/tokudb57/bin/ps_tokudb_admin --enable --user=root --password='' --socket=/home/work/tmp/mysql3504.sock

cat: dqd-stat-mysql-slave01.bj.uc.pid: No such file or directory

grep: /proc//environ: No such file or directory

which: no mysqld in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/home/itools/python/bin/:/home/work/local/mysql/bin:/root/opt/bin/:/home/work/opbin/xtrabackup/bin:/home/work/nodejs/bin:/root/bin)

ldd: missing file arguments

Try `ldd --help' for more information.

ERROR: Percona Server is not running with jemalloc, please restart mysql service to enable it and then run this script...

搞了老错误，又来新错误, server是启动的

[email protected]:/home/work/data# grep "Percona Server is not running" /home/work/tokudb57/bin/ps_tokudb_admin

printf "ERROR: Percona Server is not running with jemalloc, please restart mysql service to enable it and then run this script...\n\n";
printf "ERROR: Percona Server is not running with libHotBackup.so preloaded, please restart mysql service to enable it and then run this script again...\n\n";
           

vim /home/work/tokudb57/bin/ps_tokudb_admin

if [ $ENABLE_TOKUBACKUP = 1 ]; then

printf "Checking if Percona Server is running with libHotBackup.so preloaded...n"

LIBHOTBACKUP_STATUS=$(grep -c libHotBackup.so /proc/${PID_NUM}/environ)

if [ $LIBHOTBACKUP_STATUS = 0 ]; then

printf "ERROR: Percona Server is not running with libHotBackup.so preloaded, please restart mysql service to enable it and then run this script again...\n\n";
exit 1           

else

printf "INFO: Percona Server is running with libHotBackup.so preloaded.\n\n";           

fi

打开脚本和pid 有关 ，那就回一个pid

[email protected]:/home/work/data# grep "pid" /home/work/data/mysql3306/my3306.conf

pid-file = /home/work/tmp/mysql.pid