mysql5.7基于事务的主从配置
mysql主从配置
| 10.220.87.144 | 33308 | master |
|---|---|---|
| 10.220.87.145 | 33308 | slave |
单节点的mysql正常安装，在两台上安装完后，修改配置。
mysql单点安装
百度搜离线安装。
master
1.my.cnf默认单节点的配置
[client]
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
default-character-set=utf8
[mysqld]
interactive_timeout=1800
wait_timeout=600
max_connections=2000
basedir = /data/ailog4x/apps/mysql
datadir = /data/ailog4x/apps/mysql/data
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
lower_case_table_names = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
slow_query_log=on
[mysqld_safe]
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
pid-file = /data/ailog4x/apps/mysql/data/mysqld.pid
2.my.cnf设置主配置
[client]
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
default-character-set=utf8
[mysqld]
interactive_timeout=1800
wait_timeout=600
max_connections=2000
basedir = /data/ailog4x/apps/mysql
datadir = /data/ailog4x/apps/mysql/data
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
lower_case_table_names = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
slow_query_log=on
innodb-buffer-pool-size=50G
thread_cache_size=32
tmp_table_size=512M
max_heap_table_size=512M
character_set_server=utf8
init_connect='SET NAMES UTF8'
max_allowed_packet=50M
language=/data/ailog4x/apps/mysql/share/english
server_id=44
log-bin=mysql-bin
binlog_format=row
#binlog-do-db=log4xdb
#binlog-ignore-db=information_schema
#binlog-ignore-db=mysql
#binlog-ignore-db=performance_schema
#binlog-ignore-db=test
log-slave-updates
gtid_mode = ON
enforce_gtid_consistency = ON
[mysqld_safe]
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
pid-file = /data/ailog4x/apps/mysql/data/mysqld.pid
3.配置说明
#以下的配置，为了提高查询做的配置，通用
innodb-buffer-pool-size=50G
thread_cache_size=32
tmp_table_size=512M
max_heap_table_size=512M
character_set_server=utf8
init_connect='SET NAMES UTF8'
max_allowed_packet=50M
language=/data/ailog4x/apps/mysql/share/english
#每个节点的server_id一定不相同
server_id=44
log-bin=mysql-bin
#binlog_format值一般用row，专业dba告知，就不要用其他的值了。
binlog_format=row
#同步哪个库，不同步哪个库，就不要设置了，
#binlog-do-db=log4xdb
#binlog-ignore-db=information_schema
#binlog-ignore-db=mysql
#binlog-ignore-db=performance_schema
#binlog-ignore-db=test
log-slave-updates
#通过事物的方式去同步数据，而不是通过设置log_file去同步。
gtid_mode = ON
enforce_gtid_consistency = ON
4.master上执行
grant replication slave,super,reload on *.* to [email protected] identified by 'log4x123bak';
flush privileges;
#创建用户同步数据的用户log4xbak,密码为log4x123bak
5.show master status\G;
show master status\G;
*************************** 1. row ***************************
File: mysql-bin.000002
Position: 232565
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set: a1aed7b3-1bae-11ee-a270-34b35427aee1:1-658
1 row in set (0.00 sec)
ERROR:
No query specified
slave
1.my.cnf默认的单节点配置
[client]
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
default-character-set=utf8
[mysqld]
interactive_timeout=1800
wait_timeout=600
max_connections=2000
basedir = /data/ailog4x/apps/mysql
datadir = /data/ailog4x/apps/mysql/data
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
lower_case_table_names = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
slow_query_log=on
[mysqld_safe]
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
pid-file = /data/ailog4x/apps/mysql/data/mysqld.pid
2.my.cnf设置从配置
# cat my.cnf
[client]
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
default-character-set=utf8
[mysqld]
interactive_timeout=1800
wait_timeout=600
max_connections=2000
basedir = /data/ailog4x/apps/mysql
datadir = /data/ailog4x/apps/mysql/data
port = 33308
socket = /data/ailog4x/apps/mysql/mysql.sock
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
lower_case_table_names = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
slow_query_log=on
innodb-buffer-pool-size=50G
thread_cache_size=32
tmp_table_size=512M
max_heap_table_size=512M
character_set_server=utf8
init_connect='SET NAMES UTF8'
max_allowed_packet=50M
language=/data/ailog4x/apps/mysql/share/english
server_id=45
log-bin=mysql-bin
#binlog-do-db=log4xdb
#binlog-ignore-db=information_schema
#binlog-ignore-db=mysql
#binlog-ignore-db=performance_schema
#binlog-ignore-db=test
log-slave-updates
binlog_format=row
gtid_mode = ON
enforce_gtid_consistency = ON
[mysqld_safe]
log-error= /data/ailog4x/apps/mysql/logs/mysqld.log
pid-file = /data/ailog4x/apps/mysql/data/mysqld.pid
3.配配说明见 master中3节配置说明
4.change to master
从节点启动后，执行
change master to master_host='10.220.87.144',master_user='log4xbak',master_password='log4x123bak',master_port='33308';
#这里要指定端口，否则默认是3306，当数据库不是默认端口时，就一直错误，同步不了。
start slave; 启动从
stop slave; 停止从
reset slave; 如果启动有问题，重置从节点
4.show slave status\G;
# show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.220.87.144
Master_User: log4xbak
Master_Port: 33308
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 232565
Relay_Log_File: log4x7-relay-bin.000003
Relay_Log_Pos: 676
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 232565
Relay_Log_Space: 233286
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 44
Master_UUID: a1aed7b3-1bae-11ee-a270-34b35427aee1
Master_Info_File: /data/ailog4x/apps/mysql/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: a1aed7b3-1bae-11ee-a270-34b35427aee1:1-658
Executed_Gtid_Set: 217f92a5-1bdc-11ee-b702-525400cad9b5:1-673,
a1aed7b3-1bae-11ee-a270-34b35427aee1:1-658
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
判断说明
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
。。。
SQL_Delay: 0
从slave的配置中，能看到主的一些信息。ip,端口。以及同步的用户名。
遇到问题
1.Slave_SQL_Running: no
Slave_IO_Running: Yes
Slave_SQL_Running: no
这是因为从库有自己操作过一些内容，导致主，从库中的数据不一致。
将主库导出一份到从库中，即可恢复成yes
主：跟着提示，一步步执行下去就行，最后的warning可以忽略了。
bin/mysqldump -ulog4x -plog4x@123 --all-databases > 144.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
mysqldump: Got error: 2002: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) when trying to connect
[ailog4x@log4x6 mysql]$
[ailog4x@log4x6 mysql]$ bin/mysqldump -ulog4x -plog4x@123 -S /data/ailog4x/apps/mysql/mysql.sock --all-databases > 144.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
Warning: A partial dump from a server that has GTIDs will by default include the GTIDs of all transactions, even those that changed suppressed parts of the database. If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. To make a complete dump, pass --all-databases --triggers --routines --events.
mysqldump: Error: 'Access denied; you need (at least one of) the PROCESS privilege(s) for this operation' when trying to dump tablespaces
[ailog4x@log4x6 mysql]$
[ailog4x@log4x6 mysql]$ bin/mysqldump -uroot -plog4x@123 -S /data/ailog4x/apps/mysql/mysql.sock --all-databases > 144.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
Warning: A partial dump from a server that has GTIDs will by default include the GTIDs of all transactions, even those that changed suppressed parts of the database. If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. To make a complete dump, pass --all-databases --triggers --routines --events.
[ailog4x@log4x6 mysql]$
[ailog4x@log4x6 mysql]$ bin/mysqldump -uroot -plog4x@123 -S /data/ailog4x/apps/mysql/mysql.sock --set-gtid-purged=OFF --all-databases > 144.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
从：导入数据
bin/mysql -uroot -plog4x@123 <144.sql
bin/mysql -uroot -plog4x@123 -S /data/ailog4x/apps/mysql/mysql.sock <144.sql
当数据一致后，在修改主中的数据，从中的数据也随之更新。