mysql集群Galera Cluster配置

開啟資料來源配置檔案

vim /etc/apt/sources.list

修改更新源

# deb cdrom:[ubuntu 16.04 lts _xenial xerus_ - release amd64 (20160420.1)]/ xenial main restricted deb-src xenial main restricted #added by software-properties deb xenial main restricted deb-src xenial main restricted multiverse universe #added by software-properties deb xenial-updates main restricted deb-src xenial-updates main restricted multiverse universe #added by software-properties deb xenial universe deb xenial-updates universe deb xenial multiverse deb xenial-updates multiverse deb xenial-backports main restricted universe multiverse deb-src xenial-backports main restricted universe multiverse #added by software-properties deb xenial partner deb-src xenial partner deb xenial-security main restricted deb-src xenial-security main restricted multiverse universe #added by software-properties deb xenial-security universe

deb xenial-security multiverse

安裝依賴

apt-get install python-software-properties

apt-get install software-properties-common

新增gunpg key

apt-key adv --keyserver keyserver.ubuntu.com --recv bc19ddba

配置ubuntu下galera源

cd /etc/apt/sources.list.d

touch galera.list

在galera.list檔案中新增url

# codership repository (galera cluster for mysql) deb xenial main

deb xenial main

cd /etc/apt/preferences.d

touch galera.pref

在galera.pref 檔案中新增如下配置

package: * pin: origin releases.galeracluster.com

pin-priority: 1001

更新源

apt-get update

apt-get install galera-3 galera-arbitrator-3 mysql-wsrep-5.7

進入mysql授權

grant all privileges on *.* to 'root'@'192.168.60.131' identified by '123456' with grant option;

grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;

新增角色

create user 'wsrep'@'%' identified by '123456';

讓它生效

flush privileges;

配置節點

在my.cnf新增

[mysqld]
bind-address = 0.0.0.0
binlog_format=row
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit=0
innodb_buffer_pool_size=122m
innodb-log-file-size = 100m
wsrep_provider=/usr/lib/libgalera_smm.so
wsrep_provider_options="gcache.size=300m; gcache.page_size=1g"
wsrep_cluster_name="galeracluster"
wsrep_cluster_address="gcomm:"
wsrep_sst_method=rsync
wsrep_sst_auth=wsrep:123456

關閉mysql服務

service mysql stop

啟動mysql服務

service mysql start --wsrep-new-cluster（主節點啟動需要加這個引數）

其他直接啟動

進入mysql檢視集群

show status like 'wsrep%';

如果主節點服務停止需要重啟的話，找到/var/lib/mysql/grastate.dat

將safe_to_bootstrap: 0 ->1

再重啟其他節點，將重新加入集群

建立表及新增資料方便檢視結果

create database clustertest;

create table clustertest.mycluster ( id int not null auto_increment, name varchar(50), ipaddress varchar(20), primary key(id));

insert into clustertest.mycluster (name, ipaddress) values ("db1", "1.1.1.1");

select * from clustertest.mycluster;

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