mysql cluster
高可用集群(High Availability Cluster)
双master+keepalived
负载均衡集群(Load Balance Cluster)
科学计算集群(High Performance Computing Cluster)master: .\bin\mysqld --defaults-file=.\my.ini
create directory: D:/Server/mysql/mysql-master/tmp and D:/Server/mysql/mysql-master/data
[mysqld]
server-id=1
#replicate-same-server-id=0
basedir = D:/Server/mysql/mysql-master
datadir = D:/Server/mysql/mysql-master/data
tmpdir = D:/Server/mysql/mysql-master/tmp
port = 3310
log-bin=master-bin
log-bin-index=master-bin.index
join_buffer_size = 128M
sort_buffer_size = 2M
read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[client]
port = 3310
master-client: .\bin\mysql -h localhost -P 3310 -u root
grant replication slave, replication client on *.* to repl@'localhost' identified by 'password';
slave: .\bin\mysqld --defaults-file=.\my.ini
create directory: D:/Server/mysql/mysql-slave/tmp and D:/Server/mysql/mysql-slave/data
change the UUID(should be different with the master) in auto.cnf
[mysqld]
server-id=2
#replicate-same-server-id=0
innodb_buffer_pool_size = 128M
basedir = D:/Server/mysql/mysql-slave
datadir = D:/Server/mysql/mysql-slave/data
tmpdir = D:/Server/mysql/mysql-slave/tmp
port = 3311
log_bin = slave-bin
relay-log = slave-relay-bin
relay-log-index = slave-relay-bin.index
log_slave_updates = 1
skip-name-resolve
slave-skip-errors = all
read_only = 1
join_buffer_size = 128M
sort_buffer_size = 2M
read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
##master-host = localhost
##master-user = repl
##master-password = password
##master-port = 3310
[client]
port = 3311
slave-client: .\bin\mysql -h localhost -P 3311 -u root
stop slave
change master to master_host='localhost',master_port=3310,master_user='repl',master_password='password', master_log_file='master-bin.000001',master_log_pos=0;
start slave
some script:
show master status
show master logs
show processlist
reset master
show slave status
show slave logs
show processlist
reset slave
replicate flow:
slave io process connect to master
master io process write bin-log to slave
slave io process write sql to relay-log
slave sql process parse relay-log and execute sql
replicate mode:
statement level
row level
mixed level
replicate slave fail mode:
slave_exec_mode = strict: default
slave_exec_mode = idempotent: 忽略duplicate-key, no-key-found和一些其他错误
replicate threads:
master host: IO process
slave host:IO process + SQL process
replicate config file:
server-id = 2
replicate-wild-ignore-table=mysql.%
log-slave-updates
replicate-ignore-db = mysql
replicate-ignore-db = test
binlog-ignore-db = mysql
binlog-ignore-db = test
replicate-do-db = xx
binlog-do-db = xx
replicate-do-db = xx
binlog-do-db = xx
replicate-do-db = xx
binlog-do-db = xx
replicate-do-db = xx
binlog-do-db = xx
replicate-do-db = xx
binlog-do-db = xx
binlog skip error:
使用SET GLOBAL SQL_SLAVE_SKIP_COUNTER 命令跳过失败的SQL
slave stop
set global sql_slave_skip_counter=1
slave start
(or slave_skip_errors = 1062 in my.cnf)
binlog variables:
show variables like '%bin%';
binlog files:
ll /data/mysql/binlog*
or sudo cat /data/mysql/binlog.index
show binlog:
show binary logs;
show master logs
show status:
show master status\G;
show stalve status\G;
show binlog event:
show binlog events;
binlog events in 'binlog.000178';
binlog events in 'binlog.000178' from 92562567 limit 100;
show binlog sql:
sudo mysqlbinlog /data/mysql/binlog.000178|grep -C 5 'qpfp.com.cn2017-01-07 04:27:42'
sudo mysqlbinlog --start-datetime='2013-09-10 00:00:00' --stop-datetime='2013-09-10 01:01:01' --database=zm /data/mysql/binlog.000178 |grep -A 5 'qpfp.com.cn2017-01-07 04:27:42'
sudo mysqlbinlog --start-postion=107 --stop-position=1000 --database=zm /data/mysql/binlog.000178 |grep -B 5 'qpfp.com.cn2017-01-07 04:27:42'
limit logs days:
set global expire_logs_days=3
relaylog:
set relay_log_recovery=1
slave reset recovery:
slave stop
change master to master_log_file='yyyy-relay-bin.nnnn', master_log_pos=m
slave start
来源：oschina
链接：https://my.oschina.net/u/98127/blog/704725