Ubuntu Server部署MySQL叢集

簡介

[說明本次部署的內容，目的等等]

本部署文檔的目的是如何在Ubuntu Server上進行MySQL的群集部署。

前期準備

在進行本文檔操作前，需要完成如下前期步驟：

1.         安裝3台Ubuntu Server伺服器；

Server1: ndbd 192.168.68.5
Server2: ndbd 192.168.68.6
Server3: mysqld –ndb-cluster 192.168.68.8
ndbd（192.168.68.5\192.168.68.6）： 資料庫節點，存放資料。
mysqld –ndb-cluster(192.168.68.8)： MySQL伺服器節點，管理節點，管理群集。
註：

本實驗在ubuntu server （8.04）實現

管理節點:server3(192.168.68.8)
儲存節點:server1(192.168.68.5),server2(192.168.68.6)

2.         3台server均安裝mysql - server資料庫。

部署概要

1.         安裝ubuntu伺服器（本實驗使用為8.04）；

2.         安裝mysql – server資料庫；

3.         這三台伺服器上配置my.cnf；

4.         管理節點（192.168.68.8）上配置ndb_mgmd.cnf；

5.         管理節點伺服器上啟動mysql-ndb-mgm；

6.         儲存節點上（192.168.68.5\6）啟動mysql-ndb；

7.         3台伺服器分別啟動mysql-ndb服務；

8.         測試管理節點。

部署步驟安裝Ubuntu伺服器

1.         安裝ubuntu伺服器，安裝過程中安裝msyql（也可單獨安裝）、openssh服務。

群集配置

1.      在三台伺服器上配置my.cnf，三台伺服器都要配置。
vim /etc/mysql/my.cnf
—————————————–my.cnf開始——————————————–
ubuntu@ubuntu:~$ cat /etc/mysql/my.cnf
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - “/etc/mysql/my.cnf” to set global options,
# - “~/.my.cnf” to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with –help to get a list of available options and with
# –print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain “#” chars…
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
#
# * IMPORTANT
# If you make changes to these settings and your system uses apparmor, you may
# also need to also adjust /etc/apparmor.d/usr.sbin.mysqld.
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/english
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
# bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 128K
thread_cache_size = 8
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
#log = /var/log/mysql/mysql.log
#
# Error logging goes to syslog. This is a Debian improvement
#
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * BerkeleyDB
#
# Using BerkeleyDB is now discouraged as its support will cease in 5.1.12.
skip-bdb
#
# * MyISAM
#
# MyISAM is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more MyISAM related options. There are many!
# You might want to disable MyISAM to shrink the mysqld process by circa 100MB.
#skip-innodb
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI “tinyca”.
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem
#如下是管理節點的ip地址

ndbcluster
ndb-connectstring=192.168.68.8
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
[isamchk]
key_buffer = 16M
#
# * NDB Cluster
#
# See /usr/share/doc/mysql-server-*/README.Debian for more information.
#
# The following configuration is read by the NDB Data Nodes (ndbd processes)
# not from the NDB Management Nodes (ndb_mgmd processes).
#
[MYSQL_CLUSTER]
ndb-connectstring=192.168.68.8
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with ‘.cnf’, otherwise they’ll be ignored.
#
!includedir /etc/mysql/conf.d/
ubuntu@ubuntu:~$

提示
/etc/mysql/my.cnf主要配置如下內容： ndbcluster ndb-connectstring=192.168.68.13 和添加 [MYSQL_CLUSTER] ndb-connectstring=192.168.68.13 三台伺服器都需要配置

2.      管理節點伺服器中配置（192.168.68.8）中配置ndb_mgmd.cnf。
複製：

/usr/share/doc/mysql-server-5.0/examples/ndb_mgmd.cnf  至/etc/mysql/ndb_mgmd.cnf

3.      管理節點伺服器中配置（192.168.68.8）中編輯ndb_mgmd.cnf。
ubuntu@ubuntu:~$ sudo vim /etc/mysql/ndb_mgmd.cnf
[NDBD DEFAULT]
NoOfReplicas=2
DataMemory=10MB
IndexMemory=25MB
MaxNoOfTables=256
MaxNoOfOrderedIndexes=256
MaxNoOfUniqueHashIndexes=128
[MYSQLD DEFAULT]
[NDB_MGMD DEFAULT]
[TCP DEFAULT]
[NDB_MGMD]
Id=1 # the NDB Management Node (this one)
HostName=192.168.68.8
DataDir= /var/lib/mysql-cluster

[NDBD]
Id=2 # the first NDB Data Node
HostName=192.168.68.5
DataDir= /var/lib/mysql-cluster
[NDBD]
Id=3 # the second NDB Data Node
HostName=192.168.68.6
DataDir=/var/lib/mysql-cluster
[MYSQLD]
Id=4 # the first SQL node
HostName=192.168.68.5
[MYSQLD]
Id=5 # the first SQL node
HostName=192.168.68.6

4.      伺服器管理節點伺服器（192.168.68.8）中的mysql-ndb-mgm服務。
sudo /etc/init.d/mysql-ndb-mgm start

5.      啟動資料存放區伺服器（192.168.68.5\6）中服務mysql-ndb。
sudo /etc/init.d/mysql-ndb start

6.      最後啟動，3台伺服器中（192.168.68.5\6\8）啟動mysql服務。
sudo /etc/init.d/mysql start

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