MariaDB 安装配置记录

1.集群搭建记录

 iptables --append INPUT --protocol tcp \
      --source 192.168.126.129 --jump ACCEPT
 iptables --apend INPUT --protocol tcp \
      --source 192.168.126.130 --jump ACCEPT
 iptables --append INPUT --protocol tcp \
      --source 192.168.126.131 --jump ACCEPT

iptables-save> /etc/sysconfig/iptables-config

grant usage on *.* to sst@'%' identified by 'ssTT-488';
flush privileges;

修改后

[mysqld]
binlog_format = ROW
#bind-address = 192.168.126.129
default_storage_engine = innodb
innodb_autoinc_lock_mode =
innodb_flush_log_at_trx_commit =
innodb_buffer_pool_size = 122M
wsrep_provider=/usr/lib64/galera/libgalera_smm.so
wsrep_provider_options ="gcache.size = 300M; gcache.page_size = 300M"
wsrep_cluster_name ="MyCluster"
wsrep_cluster_address="gcomm://192.168.126.129"
wsrep_sst_method = rsync
wsrep_node_name = Node11
wsrep_node_address ="192.168.126.129"
wsrep_sst_auth=sst:ssTT-    #节点N的数据库账户和密码--创建账号密码
wsrep_on=ON

[mysql_safe]
log-error = /var/log/mysqld.log
pid-file = /var/run/mysqld/mysqld.pid

swapon --summary

fallocate -l 512M /swapfile
dd if=/dev/zero of=/swapfile bs=1M count=
chmod  /swapfile
ls -a / | grep swapfile
mkswap /swapfile
swapon /swapfile
vi /etc/fstab
/swapfile none swap defaults  

swapon --summary

galera_new_cluster

show variables like 'character%';
set character_set_server = utf8;
set character_set_database = utf8;

cp /usr/share/mysql/wsrep.cnf /etc/my.cnf.d/
vi /etc/my.cnf.d/wsrep.cnf

garbd -a gcomm://192.168.126.129 -g MyCluster -d

journalctl -xe

2.使用记录

查看服务器连接池使用情况：

show global status like 'thread%';
show variables like 'thread_cache_size';
show PROCESSLIST;

查看配置情况：

show variables like "max_connections";
show global variables like 'wait_timeout';
show global variables like 'interactive_timeout';