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mysql数据库集群备份策略_mysql高可用方案之集群(cluster)

作者：我家自动化 | 2024-08-20 07:48:16

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集群数据库数据备份策略

1.实验环境

我用三台服务器搭建mysql cluster环境,sql节点和数据节点在同一服务器上,管理节点单独一台.

cluster node1:192.168.1.102 data node1:192.168.1.102

cluster node2:192.168.1.104 data node2:192.168.1.104

manager node:192.168.1.19

OS:centos 6.4 64位

2.在sql节点和数据节点安装mysql cluster(注:cluster节点1和节点2是一样的)

cluster node1:

[root@node1 home]# wget http://mirrors.sohu.com/mysql/MySQL-Cluster-7.3/mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64.tar.gz

[root@node1 home]# tar xvf mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64.tar.gz

[root@node1 home]# mv mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64 /usr/local/mysql-cluster-gpl-7.3.6/

[root@node1 home]# cd /usr/local/

[root@node1 local]# groupadd mysql

[root@node1 local]# useradd -r -M -s /sbin/nologin mysql

[root@node1 local]# chown -R root:mysql mysql-cluster-gpl-7.3.6/

[root@node1 local]# chown -R mysql:mysql mysql-cluster-gpl-7.3.6/data/

[root@node1 scripts]# ./mysql_install_db --user=mysql --datadir=/usr/local/mysql-cluster-gpl-7.3.6/data --basedir=/usr/local/mysql-cluster-gpl-7.3.6

[root@node1 scripts]# cd ../bin/

[root@node1 bin]# cp -a ../support-files/mysql.server /etc/init.d/mysqld

[root@node1 bin]# chkconfig --add mysqld

[root@node1 bin]# chkconfig mysqld on

[root@node1 bin]# cp -a ../my.cnf /etc/my.cnf

[root@node1 bin]# vim /etc/my.cnf

[mysqld]

basedir = /usr/local/mysql-cluster-gpl-7.3.6 --数据库的安装路径

datadir = /usr/local/mysql-cluster-gpl-7.3.6/data --数据库的数据目录

port = 3306

ndbcluster --集群服务

ndb-connectstring=192.168.1.19 --管理节点的IP地址

[mysql_cluster]

ndb-connectstring=192.168.1.19 --管理节点的IP地址

[root@node1 bin]# ./mysqld_safe --user=mysql

[root@node1 bin]# /etc/init.d/mysqld restart

ERROR! MySQL server PID file could not be found!

Starting MySQL...................................... SUCCESS!

[root@node1 bin]# netstat -anp |grep mysql

tcp 0 0 :::3306 :::* LISTEN 1982/mysqld

unix 2 [ ACC ] STREAM LISTENING 48481 1982/mysqld /tmp/mysql.sock[root@node1 bin]# /etc/init.d/iptables stop

iptables: Setting chains to policy ACCEPT: filter [ OK ]

iptables: Flushing firewall rules: [ OK ]

iptables: Unloading modules: [ OK ]

[root@node1 bin]#

cluster node2:

注:节点2上的mysql cluster安装和节点1是一样的,配置文件也是一样

3.管理节点

[root@db2 home]# wget http://mirrors.sohu.com/mysql/MySQL-Cluster-7.3/mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64.tar.gz

[root@db2 home]# tar xvf mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64.tar.gz

[root@db2 home]# mv mysql-cluster-gpl-7.3.6-linux-glibc2.5-x86_64 /usr/local/mysql-cluster-gpl-7.3.6/

[root@db2 home]# cd /usr/local/

[root@db2 local]# groupadd mysql

[root@db2 local]# useradd -r -M -s /sbin/nologin mysql

[root@db2 local]# chown -R root:mysql mysql-cluster-gpl-7.3.6/

[root@db2 local]# chown -R mysql:mysql mysql-cluster-gpl-7.3.6/data/

[root@db2 scripts]# ./mysql_install_db --user=mysql --datadir=/usr/local/mysql-cluster-gpl-7.3.6/data --basedir=/usr/local/mysql-cluster-gpl-7.3.6

[root@db2 scripts]# cd ../bin/

[root@db2 bin]# cp -a ../my.cnf /etc/my.cnf

[root@db2 bin]# vim /etc/my.cnf

[mysqld]

basedir = /usr/local/mysql-cluster-gpl-7.3.6

datadir = /usr/local/mysql-cluster-gpl-7.3.6/data

port = 3306

[root@db2 home]# /etc/init.d/iptables stop

iptables: Flushing firewall rules: [ OK ]

iptables: Setting chains to policy ACCEPT: filter [ OK ]

iptables: Unloading modules: [ OK ]

[root@db2 home]# mkdir /var/lib/mysql-cluster/

[root@db2 home]# vim /var/lib/mysql-cluster/config.ini --配置文件中注意大小写

[ndbd default]

NoOfReplicas=1

[tcp default]

portnumber=2202

[ndb_mgmd]

Id=1

Hostname=192.168.1.19

datadir=/usr/local/mysql-cluster-gpl-7.3.6/data

[ndbd]

Id=2

Hostname=192.168.1.102

datadir=/usr/local/mysql-cluster-gpl-7.3.6/data/

[ndbd]

Id=3

Hostname=192.168.1.104

datadir=/usr/local/mysql-cluster-gpl-7.3.6/data/

[MYSQLD]

Id=4

Hostname=192.168.1.102

[MYSQLD]

Id=5

Hostname=192.168.1.104

[root@db2 bin]# ./ndb_mgmd --configdir=/var/lib/mysql-cluster/ -f /var/lib/mysql-cluster/config.ini --initial --启动管理节点服务

MySQL Cluster Management Server mysql-5.6.17 ndb-7.3.6

[root@db2 bin]# netstat -anp | grep ndb

tcp 0 0 0.0.0.0:1186 0.0.0.0:* LISTEN 3569/ndb_mgmd

tcp 0 0 192.168.1.105:1186 192.168.1.102:45799 ESTABLISHED 3569/ndb_mgmd

tcp 0 0 192.168.1.105:1186 192.168.1.104:46933 ESTABLISHED 3569/ndb_mgmd

tcp 0 0 127.0.0.1:1186 127.0.0.1:55347 ESTABLISHED 3569/ndb_mgmd

tcp 0 0 192.168.1.105:1186 192.168.1.102:45800 ESTABLISHED 3569/ndb_mgmd

tcp 0 0 192.168.1.105:1186 192.168.1.102:45801 ESTABLISHED 3569/ndb_mgmd

tcp 0 0 127.0.0.1:55347 127.0.0.1:1186 ESTABLISHED 3569/ndb_mgmd

unix 3 [ ] STREAM CONNECTED 20977 3569/ndb_mgmd

unix 3 [ ] STREAM CONNECTED 20976 3569/ndb_mgmd

[root@db2 bin]#

4.启动cluster节点和数据库服务

cluster node1:

[root@node1 bin]# ./ndbd --initial

2014-10-10 09:59:20 [ndbd] INFO -- Angel connected to '192.168.1.19:1186'

2014-10-10 09:59:20 [ndbd] INFO -- Angel allocated nodeid: 2

[root@node1 bin]# ../support-files/mysql.server start

Starting MySQL SUCCESS!

[root@node1 bin]#

cluster node2:

[root@node2 bin]# ./ndbd --initial

2014-10-10 10:01:24 [ndbd] INFO -- Angel connected to '192.168.1.19:1186'

2014-10-10 10:01:24 [ndbd] INFO -- Angel allocated nodeid: 3

[root@node2 bin]# ../support-files/mysql.server start

Starting MySQL SUCCESS!

[root@node2 bin]#

管理节点查看信息:

[root@db2 bin]# ./ndb_mgm

-- NDB Cluster -- Management Client --

ndb_mgm> show

Connected to Management Server at: localhost:1186

Cluster Configuration

---------------------

[ndbd(NDB)] 2 node(s)

id=2 @192.168.1.102 (mysql-5.6.17 ndb-7.3.6, Nodegroup: 0, *)

id=3 @192.168.1.104 (mysql-5.6.17 ndb-7.3.6, Nodegroup: 1)

[ndb_mgmd(MGM)] 1 node(s)

id=1 @192.168.1.19 (mysql-5.6.17 ndb-7.3.6)

[mysqld(API)] 2 node(s)

id=4 @192.168.1.102 (mysql-5.6.17 ndb-7.3.6)

id=5 @192.168.1.102 (mysql-5.6.17 ndb-7.3.6)

ndb_mgm>

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