本文共 10000 字,大约阅读时间需要 33 分钟。
Galera 10.0.20 on CentOS 6.6
0.使用场景
数据库软件:mariadb-galera-10.0.20-linux-x86_64.tar.gz
集群管理:galera-3-25.3.10 节点同步方式(xtrabackup,rsync):percona-xtrabackup-2.2.8-5059.el6.x86_64.rpm 节点同步使用sockt:socat-2.0.0-b7.tar.gz安装galera是为了获得libgalera_smm.so。
安装xtrabackup是为了配置同步方式xtrabackup,节点数据同步的时候用到。 安装socat是由于同步数据使用socket方式进行端到端的数据交换。数据库节点:
127.0.0.1 localhost localhost 192.168.50.10 db01 db01.mysql.com 192.168.50.20 db02 db02.mysql.com 192.168.50.30 db03 db03.mysql.com1.系统安装
——–0.删除postfix
yum remove postfix
——–1.系统安装
參见:Linux for Mysql 系统安装规范
——-2 配置yum源
cd /etc/yum.repos.d
mv CentOS-Base.repo CentOS-Base.repo.old
wget -O /etc/yum.repos.d/CentOS-Base.repo
wget
yum makecache
检查可更新的rpm包
更新全部的rpm包
—3.关闭防火墙和selinux
chkconfig –level 123456 iptables off
service iptables stop
/usr/sbin/sestatus -v | grep “SELinux status”
vi /etc/selinux/config
SELINUX=disabled
—4.改动各个节点hosts
192.168.50.10 db01 db01.mysql.com
192.168.50.20 db02 db02.mysql.com 192.168.50.30 db03 db03.mysql.com—4.rz
yum install lrzsz -y
2.mysql安装部分
一:卸载旧版本号
使用以下的命令检查是否安装有MySQL Server
rpm -qa | grep mysql有的话通过以下的命令来卸载掉
rpm -e mysql //普通删除模式 rpm -e –nodeps mysql rpm -e –nodeps mysql-devel rpm -e –nodeps mysql-libs// 强力删除模式。假设使用上面命令删除时,提示有依赖的其他文件,
则用该命令能够对其进行强力删除yum remove mysql-libs
二:安装MySQL
1.安装编译代码须要的包
yum -y install cmake gcc gcc-c++ autoconf automake zlib* libxml* \
ncurses ncurses-devel libtool libtool-ltdl-devel* make bison bison-devel \ openssl-devel libevent-devel \ libaio libaio-devel pam-devel boost boost-devel valgrind-devel \ libnl-devel popt-devel popt-static bzr2.为mysql新建组和用户
groupadd mysql
useradd -s /sbin/nologin -g mysql -M mysql passwd mysql mysql01!id mysql
3.设置用户的系统资源限制
mysql soft nproc 2047
mysql hard nproc 16384 mysql soft nofile 1024 mysql hard nofile 655364.编译安装
tar xf mariadb-galera-10.0.20.tar.gz
cd mariadb-10.0.20
编译安装
/*
cmake . -LH –查看cmake支持的mysql相关參数shell> cmake . -L # overview
shell> cmake . -LH # overview with help text shell> cmake . -LAH # all params with help text shell> ccmake . # interactive display又一次编译时,须要清除旧的对象文件和缓存信息
# make clean
# rm -f CMakeCache.txt
**/
cmake \
-DCMAKE_INSTALL_PREFIX=/data/mysql \ -DMYSQL_UNIX_ADDR=/data/mysql/mysql.sock \ -DWITH_INNOBASE_STORAGE_ENGINE=1 \ -DWITH_MYISAM_STORAGE_ENGINE=1 \ -DWITH_SPHINX_STORAGE_ENGINE=1 \ -DWITH_READLINE=1 \ -DMYSQL_DATADIR=/data/mysql/data \ -DMYSQL_TCP_PORT=33306 \ -DENABLED_LOCAL_INFILE=1 \ -DWITH_EXTRA_CHARSETS=all \ -DDEFAULT_CHARSET=utf8 \ -DDEFAULT_COLLATION=utf8_general_ci \ -DEXTRA_CHARSETS=all \ -DWITH_WSREP=1 \ -DWITH_INNODB_DISALLOW_WRITES=1make -j4
make install
三:配置MySQL
1.新建数据文件、暂时文件,改动/usr/local/mysql权限
mkdir -p /data/mysql
mkdir /data/mysql/{innodb_data,data,tmp} -p
mkdir /data/mysql/mysql_logs/{binary_log,innodb_log,query_log,slow_query_log,error_log} -p
2.改动权限
chown -R mysql /data/mysql
chgrp -R mysql /data/mysql3.改动參数
rm -rf /etc/my.cnf
vi /data/mysql/my.cnfll /etc/my.cnf
lrwxrwxrwx. 1 root root 23 Nov 18 17:30 /etc/my.cnf -> /data/mysql/my.cnfchown -R mysql /data/mysql
chgrp -R mysql /data/mysql5.初始化数据库
cd /data/mysql/scripts
–datadir=/data/mysql/data
6.启动MySQL
chown -R mysql /data/mysql
chgrp -R mysql /data/mysql–6.1建议安全启动
/data/mysql/bin/mysqld_safe &/data/mysql/bin/mysqld_safe –datadir=’/data/mysql/data’ &
–6.2加入服务。拷贝服务脚本到init.d文件夹,并设置开机启动
cd /data/mysql/
cp support-files/mysql.server /etc/init.d/mysql
chkconfig mysql on
7.配置mysql用户
MySQL启动成功后,root默认没有password,我们须要设置rootpassword。
7.1改动/etc/profile文件,在文件末尾加入
PATH=/data/mysql/bin:$PATH
export PATH如今,我们能够在终端内直接输入mysql进入,mysql的环境了
运行以下的命令改动rootpassword
–7.2改动mysql管理员password
1.改动当前用户password
mysql -uroot -pSET PASSWORD = PASSWORD(‘pass01’);
flush privileges;
2.给全部的root用户设定password:
第一种方式(推荐) # mysql -uroot -pMariaDB [(none)]>
MariaDB [(none)]> select host,user,password from mysql.user; +————-+——+———-+ | host | user | password | +————-+——+———-+ | localhost | root | | | db02.zp.com | root | | | 127.0.0.1 | root | | | ::1 | root | | | localhost | | | | db02.zp.com | | | +————-+——+———-+ 6 rows in set (0.00 sec)update mysql.user set password = password(‘pass01’) where user = ‘root’ limit 100;flush privileges;
flush privileges;3.删除全部匿名用户(不要删除root@localhost)
DROP USER ”@’localhost’;delete from mysql.user where user=” limit 10;commit;flush privileges;delete from mysql.user where host=’db01.mysql.com’;flush privileges;
delete from mysql.user where host=’db02.mysql.com’;flush privileges; delete from mysql.user where host=’db03.mysql.com’;flush privileges;–7.3设置root用户能够远程訪问
–方法1:授权法
mysql>GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘pass01’ \
WITH GRANT OPTION;flush privileges;select host,user,password from mysql.user;
–7.4 登录mysql
—-7.5设置linux脚本
vi + ~/.bash_profile
alias mysql=”mysql -U -hlocalhost -uroot -ppass01 –auto-rehash”
alias errorlog=”cat /data/mysql/mysql_logs/error_log/error.log” alias mycnf=”cd /data/mysql” export PATH=/data/mysql/scripts:$PATHsource ~/.bash_profile
—-7.7改动权限
chown -R mysql /data/mysql
chgrp -R mysql /data/mysql—-7.8 常见启动错误或警告
cat /data/mysql/mysql_logs/error_log/error.log
Warning] ‘proxies_priv’ entry ‘@% root@mysql.ocp.com’ ignored in –skip-name-resolve mode.
解决的方法:
delete from mysql.proxies_priv where host=’db01.mysql.com’;commit;flush privileges;
delete from mysql.proxies_priv where host=’db02.mysql.com’;commit;flush privileges; delete from mysql.proxies_priv where host=’db03.mysql.com’;commit;flush privileges;—–7.9 软连接mysql的bin文件夹
ln -sf /data/mysql/bin/* /usr/bin/
3.galera相关配置
—–3.1 galera安装(參见galera安装配置)
—3.2 新建wsrep用户
GRANT RELOAD, LOCK TABLES, REPLICATION CLIENT ON . TO ‘wsrep’@’%’ IDENTIFIED BY ‘wsrep’ ;flush privileges;
CREATE USER ‘wsrep’@’localhost’ IDENTIFIED BY ‘wsrep’;
GRANT RELOAD, LOCK TABLES, REPLICATION CLIENT ON . TO ‘wsrep’@’localhost’; FLUSH PRIVILEGES;—3.2.3 安装socat
tar xf socat-1.7.3.0.tar.gz
cd socat-1.7.3.0 ./configure make -j4 make install—3.2.4 改动mysql的配置文件
mkdir /etc/my.cnf.d
cd /soft/mariadb-10.0.20/support-files
cp wsrep.cnf /etc/my.cnf.d/
[mysqld]
wsrep_on=ON binlog_format=ROW default-storage-engine=innodbinnodb_autoinc_lock_mode=2
innodb_locks_unsafe_for_binlog=1 innodb_flush_log_at_trx_commit = 2 #能够提高性能,galera保证不丢数据 query_cache_size=0 query_cache_type=0 wsrep_provider=/data/mysql/lib/plugin/libgalera_smm.so #改动 wsrep_cluster_name=”galera_cluster” #改动 wsrep_cluster_address=”gcomm://192.168.50.10,192.168.50.20,192.168.50.30” #改动 wsrep_node_address=192.168.50.10 #改动 wsrep_node_name=db01 #改动 wsrep_slave_threads=4 wsrep_certify_nonPK=1 wsrep_max_ws_rows=131072 wsrep_max_ws_size=1073741824 wsrep_debug=0 wsrep_convert_LOCK_to_trx=0 wsrep_retry_autocommit=1 wsrep_auto_increment_control=1 wsrep_drupal_282555_workaround=0 wsrep_causal_reads=0 wsrep_notify_cmd= wsrep_sst_method=xtrabackup-v2 #能够改动#rsync,xtrabackup,mysqldump wsrep_sst_auth=root:pass01 #改动[mysqld]
wsrep_on=ON binlog_format=ROW default-storage-engine=innodbinnodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit = 2 #能够提高性能,galera保证不丢数据 query_cache_size=0 query_cache_type=0 wsrep_provider=/data/mysql/lib/plugin/libgalera_smm.so #改动 wsrep_cluster_name=”galera_cluster” #改动 wsrep_cluster_address=”gcomm://192.168.50.10,192.168.50.20,192.168.50.30” #改动 wsrep_node_address=192.168.50.20 #改动 wsrep_node_name=db02 #改动 wsrep_slave_threads=4 wsrep_certify_nonPK=1 wsrep_max_ws_rows=131072 wsrep_max_ws_size=1073741824 wsrep_debug=0 wsrep_convert_LOCK_to_trx=0 wsrep_retry_autocommit=1 wsrep_auto_increment_control=1 wsrep_drupal_282555_workaround=0 wsrep_causal_reads=0 wsrep_notify_cmd= wsrep_sst_method=xtrabackup-v2 #能够改动#rsync,xtrabackup,mysqldump,xtrabackup-v2 wsrep_sst_auth=root:pass01 #改动[mysqld]
wsrep_on=ON binlog_format=ROW default-storage-engine=innodbinnodb_autoinc_lock_mode=2
innodb_locks_unsafe_for_binlog=1 innodb_flush_log_at_trx_commit = 2 #能够提高性能,galera保证不丢数据 query_cache_size=0 query_cache_type=0 wsrep_provider=/data/mysql/lib/plugin/libgalera_smm.so #改动 wsrep_cluster_name=”galera_cluster” #改动 wsrep_cluster_address=”gcomm://192.168.50.10,192.168.50.20,192.168.50.30” #改动 wsrep_node_address=192.168.50.30 #改动 wsrep_node_name=db03 #改动 wsrep_slave_threads=4 wsrep_certify_nonPK=1 wsrep_max_ws_rows=131072 wsrep_max_ws_size=1073741824 wsrep_debug=0 wsrep_convert_LOCK_to_trx=0 wsrep_retry_autocommit=1 wsrep_auto_increment_control=1 wsrep_drupal_282555_workaround=0 wsrep_causal_reads=0 wsrep_notify_cmd= wsrep_sst_method=xtrabackup-v2 #能够改动#rsync,xtrabackup,mysqldump,xtrabackup-v2 wsrep_sst_auth=root:pass01 #改动echo ‘!includedir /etc/my.cnf.d/’ >>/etc/my.cnf
—4.使用rsync、xtrabackup、mydupm
–4.1 使用rsync
yum -y install rsync
–强烈建议将xtrabackup和socat加入path
PATH=/data/mysql/bin:/usr/local/bin/socat:$PATH
export PATHln -sf /usr/local/bin/socat /usr/sbin/
—–4.2 使用xtrabackup(推荐)
tar xf Percona-XtraBackup-2.2.11-r7956d1d-el6-x86_64-bundle.tar
yum localinstall -y percona-*
—5.初始化启动
–方法1:
改动 my.cnf 并设置 wsrep_cluster_address=gcomm:// ,启动后再来改动配置.–方法2:(推荐)
使用以下这个命令来启动 mysql (支持 RedHat 和 CentOS 系统)第一个节点启动和其他的两个节点有些不同
/data/mysql/bin/mysqld_safe –datadir=’/data/mysql/data’ –wsrep-cluster-address=”gcomm://” &其他节点启动:
/data/mysql/bin/mysqld_safe –datadir=’/data/mysql/data’ &–node1查看日志
—-6.各节点启动相关
tcp 0 0 :::33306 :::* LISTEN 3072/mysqld
NODE1先启动,其他节点无顺序.
—-7.查看群集连接情况
SELECT VARIABLE_VALUE as “cluster size” FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME=”wsrep_cluster_size”;
SHOW STATUS LIKE ‘wsrep_cluster_size’;
SHOW STATUS LIKE ‘wsrep%’;
本文转自mfrbuaa博客园博客,原文链接:http://www.cnblogs.com/mfrbuaa/p/5333467.html,如需转载请自行联系原作者