TokuDB 安裝

安裝TokuDB:

0､關閉記憶體大頁

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

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

檢視下

cat /sys/kernel/mm/transparent_hugepage/enabled

always madvise [never]

cat /sys/kernel/mm/transparent_hugepage/defrag

tokuDB記憶體配置設定需要jemalloc支援，是以使用之前需要安裝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､從percona官網下載下傳

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是空密碼

--defaults-file= 指定配置檔案,最好放在前面，不要放在最後

3､配置檔案my3306.conf

加入：

[mysqld_safe]

thp-setting=never

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

3､啟動

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

改密碼:

set password=password('123456');

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

4､安裝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)

此時InnoDB還是預設引擎 重新開機下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

重新開機後TokuDB 就是預設存儲引擎了

mysql> show engines;

錯誤:

一、 初始化錯誤

[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

解決：

報錯原因：

在初始化資料庫的時候沒有指定innodb_undo_tablespaces參數

解決方法：

在初始化資料庫的時候寫上--defaults-file參數，在對應的配置檔案中寫上對應的innodb_undo_tablespaces參數

二、tokudb安裝:

[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...

使用者名和密碼都是正常的

解決:

三、 Percona Server 未啟動

/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...

搞了老錯誤，又來新錯誤, server是啟動的

[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

打開腳本和pid 有關 ，那就回一個pid

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

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