配置percona mysql server 5.7基于gtid主主复制架构

配置mysql基于gtid主主复制架构

环境：
操作系统 centos7.5 x86_64
mysql版本：Percona-Server-5.7.21-21

测试环境：
node1 10.11.0.210
node2 10.11.0.212

一、二进制安装percona-mysql5.7

[root@node5 data]# tar -zxf Percona-Server-5.7.21-21-Linux.x86_64.ssl101.tar.gz
[root@node5 data]# mv Percona-Server-5.7.21-21-Linux.x86_64.ssl101 percona-server-5.7.21-21
[root@node5 data]# mv percona-server-5.7.21-21 /usr/local/
[root@node5 local]# cd /usr/local/
[root@node5 local]# ln -s percona-server-5.7.21-21 mysql

# 添加用户
useradd -u 501 -G users -s /sbin/nologin -M -d /usr/local/mysql/bin mysql

mkdir -p /data/mysql_data

# 编辑配置
vim /etc/my.cnf

[client]
port                                    = 3306
socket                                  = /tmp/mysql.sock

# The MySQL server
[mysqld]
user                                    = mysql
port                                    = 3306
bind-address                            = 0.0.0.0
socket                                  = /tmp/mysql.sock
datadir                                 = /data/mysql_data
pid-file                                = /data/mysql_data/mysql.pid

skip-external-locking
#memory is 16G
#key_buffer_size = 16M
key_buffer_size                         = 32M
#table_open_cache = 64
table_open_cache                         = 1024
innodb_open_files                         = 450
#sort_buffer_size = 512K
sort_buffer_size                         = 2M
#net_buffer_length = 4K
net_buffer_length                         = 32K
#read_buffer_size = 256K
read_buffer_size                         = 2M
#read_rnd_buffer_size = 4M
read_rnd_buffer_size                         = 8M
#myisam_sort_buffer_size = 4M
myisam_sort_buffer_size                     = 32M
thread_cache_size                         = 800
query_cache_size                         = 32M
query_cache_type                         = 1
max_write_lock_count                         = 300
skip-name-resolve
wait_timeout                             = 120
interactive_timeout                         = 120
max_connections                         = 400
max_connect_errors                         = 10000
max_allowed_packet                         = 320M
back_log                             = 1024
log_timestamps                                          = system

sync_binlog                            = 1 
#当链接数耗尽后，通过设置别用端口，让root可以登录
extra_max_connections                               = 2
extra_port                            = 13306
##让mysql不区分大小写敏感
lower_case_table_names                              = 1

character_set_server                        = utf8mb4
performance_schema                                              = ON

#for FULLTEXT index , if your progrom used fulltext index please change the value your want.
#ft_min_word_len = 1
#ft_max_work_len = 10
slave-skip-errors                         = 1062,1032
#if the query is exec time great than 2 seconds, the query will log to slow log if slowlog is enabled.
long_query_time                         = 0.5
slow_query_log                             = on
slow-query-log-file                         = /data/mysql_data/slow.log
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin                                = mysql-bin
expire_logs_days                         = 8
log_error                             = error.log
log_warnings                             = 1
# binary logging format - mixed recommended
binlog_format                            = row
#binlog_format=mixed
relay-log                            = mysql-relay-bin
auto-increment-increment = 2
auto-increment-offset = 1
skip_slave_start

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
#server-id                               = 9662945782
server-id = 210
sql-mode                            = "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
#sync_binlog = 2


##### Replication #####
replicate-ignore-db                                           = mysql
replicate-ignore-db                                           = information_schema
replicate-ignore-db                                           = performance_schema
replicate-ignore-db                                           = sys
replicate-ignore-db                                           = undolog
replicate-ignore-db                                           = for_nagios
replicate_wild_ignore_table                                    = mysql.%
replicate_wild_ignore_table                                    = information_schema.%
replicate_wild_ignore_table                                    = performance_schema.%
replicate_wild_ignore_table                                    = sys.%

log-slave-updates

#skip-slave-start

#skip-grant-tables

###rds-ecs，此处配置根据rds的配置来进行设置
innodb_data_file_path                                   = ibdata1:200M:autoextend
innodb_log_files_in_group                               = 2
innodb_log_file_size                                    = 1572864000

master-info-repository               = TABLE                    ###Slave配置需要
relay-log-info_repository            = TABLE                    ###Slave配置需要
binlog-format                        =ROW                       ####Slave配置需要
gtid-mode                            = on                       ###开启GTID需要
enforce-gtid-consistency             = true                     ###开启GTID需要
slave-sql-verify-checksum = 1
relay-log-index = relay-log-index
relay-log-recovery = ON
slave-sql-verify-checksum = 1


#innodb_fast_checksum                        = false
#innodb_page_size                        = 16384
#innodb_log_block_size                        = 512

#innodb_checksum_algorithm                    = crc32
#innodb_log_checksum_algorithm                    = strict_crc32

#####
# Uncomment the following if you are using InnoDB tables
innodb_data_home_dir                         = /data/mysql_data
#innodb_data_file_path                         = ibdata1:1G;ibdata2:1G:autoextend
innodb_log_group_home_dir                           = /data/mysql_data

#innodb_undo_directory                               = /data/mysql_data/undolog/
#innodb_undo_logs                         = 128
#innodb_undo_tablespaces                     = 3

# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size                     = 1G
innodb_buffer_pool_instances                     = 1
#innodb_additional_mem_pool_size = 8M

# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size                         = 256M
innodb_log_buffer_size                         = 64M
#innodb_log_files_in_group                     = 3
innodb_flush_log_at_trx_commit                     = 2
innodb_lock_wait_timeout                     = 30
innodb_file_per_table                         = 1
innodb_thread_concurrency                     = 4
innodb_max_dirty_pages_pct                     = 75
innodb_flush_method                         = O_DIRECT

innodb_purge_threads                         = 4
innodb_large_prefix                         = 1
innodb_read_io_threads                         = 16
innodb_write_io_threads                     = 16
innodb_io_capacity                         = 1000
innodb_io_capacity_max                         = 2000

thread_pool_size                         = 8
thread_handling                         = pool-of-threads
thread_pool_oversubscribe                     = 40
thread_pool_stall_limit                     = 100
thread_pool_max_threads                     = 60

#解释： 在启动时把热数据加载到内存。
innodb_buffer_pool_load_at_startup                      = 1
        
##解释： 在关闭时把热数据dump到本地磁盘
innodb_buffer_pool_dump_at_shutdown                     = 1


[mysqldump]
quick
max_allowed_packet                         = 320M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[myisamchk]
#key_buffer_size = 20M
#sort_buffer_size = 20M
key_buffer_size                         = 200M
sort_buffer_size                         = 200M
read_buffer                             = 2M
write_buffer                             = 2M

[mysqlhotcopy]
interactive-timeout

将mysql命令加入环境变量中
vim /etc/profile
export PATH=/usr/local/mysql/bin:$PATH

[root@node02 local]# source /etc/profile

# 修改权限
chown -R mysql.mysql /data/mysql_data
初始化MySQL数据库的数据文件路径，并且创建系统表，5.7.6及以上版本，要使用mysqld来初始化数据库
[root@node5 local]# /usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf --initialize-insecure --user=mysql

[root@node5 local]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
[root@node5 local]# chmod +x /etc/init.d/mysql

修改启动脚本
vim /etc/init.d/mysql
basedir=/usr/local/mysql
datadir=/data/mysql_data

启动mysql
/etc/init.d/mysql start
设置root密码，默认密码为空
mysql> set password = password('root');
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;


三、通过gtid的方式配置mysql主主复制

node1配置片段：
# server-id不能相同
server-id = 210
# 步长
auto-increment-increment = 2
# 起始值
auto-increment-offset = 1
#不要自动启用slave
skip_slave_start

log-slave-updates = ON

master-info-repository               = TABLE                    ###Slave配置需要
relay-log-info_repository            = TABLE                    ###Slave配置需要
binlog-format                        =ROW                       ####Slave配置需要
gtid-mode                            = on                       ###开启GTID需要
enforce-gtid-consistency             = true                     ###开启GTID需要
binlog-checksum = CRC32
master-verify-checksum = 1

node2配置片段：
# server-id不能相同
server-id = 212
# 步长
auto-increment-increment = 2
# 起始值不能相同
auto-increment-offset = 2
#不要自动启用slave
skip_slave_start
log-slave-updates = ON
master-info-repository               = TABLE                    ###Slave配置需要
relay-log-info_repository            = TABLE                    ###Slave配置需要
binlog-format                        =ROW                       ####Slave配置需要
gtid-mode                            = on                       ###开启GTID需要
enforce-gtid-consistency             = true                     ###开启GTID需要
binlog-checksum = CRC32
master-verify-checksum = 1

说明：
auto_increment_offset表示自增长字段从那个数开始，他的取值范围是1 .. 65535
auto_increment_increment表示自增长字段每次递增的量，其默认值是1，取值范围是1 .. 65535

# node1和node2上添加复制的账户
GRANT REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl'@'10.11.0.%' IDEnTIFIED BY 'replpass';
FLUSH PRIVILEGES;

查看主库与从库的GTID是否开启
mysql> show variables like '%gtid%';
+----------------------------------+-----------+
| Variable_name                    | Value     |
+----------------------------------+-----------+
| binlog_gtid_simple_recovery      | ON        |
| enforce_gtid_consistency         | ON        |
| gtid_executed_compression_period | 1000      |
| gtid_mode                        | ON        |
| gtid_next                        | AUTOMATIC |
| gtid_owned                       |           |
| gtid_purged                      |           |
| session_track_gtids              | OFF       |
+----------------------------------+-----------+

mysql> show variables like '%gtid_next%';
+---------------+-----------+
| Variable_name | Value     |
+---------------+-----------+
| gtid_next     | AUTOMATIC |
+---------------+-----------+
1 row in set (0.00 sec)

查看服务器server_uuid
mysql> show variables like '%uuid%';
+---------------+--------------------------------------+
| Variable_name | Value                                |
+---------------+--------------------------------------+
| server_uuid   | ea04f6f3-631c-11e8-9eac-000c29ff3eec |
+---------------+--------------------------------------+
1 row in set (0.00 sec)

查看主服务器状态，如果Executed_Gtid_Set字段为空，则可能配置错误需要自行检查配置
mysql> show master status;
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                                                                  |
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------+
| mysql-bin.000003 |     1365 |              |                  | 0fae39d0-6f7f-11e8-86ee-000c29ff3eec:1-4,
b9d0f27b-6f80-11e8-87ae-000c292cb7df:1-6 |
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------+

配置node1连接至主库node2
mysql> CHANGE MASTER TO MASTER_HOST='10.11.0.212',MASTER_USER='repl',MASTER_PASSWORD='replpass',MASTER_AUTO_POSITION=1;
在从服务器上启动复制
mysql> START SLAVE;
启动成功后查看SLAVE的状态


配置node2连接至主库node1
mysql> CHANGE MASTER TO MASTER_HOST='10.11.0.210',MASTER_USER='repl',MASTER_PASSWORD='replpass',MASTER_AUTO_POSITION=1;
在从服务器上启动复制
mysql> START SLAVE;
启动成功后查看SLAVE的状态


mysql> SHOW SLAVE STATUS\G

...
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...
确认 Slave_IO_Running 和 Slave_SQL_Running 两个参数都为 Yes 状态。

测试GTID主主复制
在主库(node1)实例创建一些数据，node2能够正常识别并且是隔一个数依次增加的

mysql> create database wanxing;
Query OK, 1 row affected (0.01 sec)

mysql> use wanxing;
Database changed
mysql> create table users(id int primary key auto_increment, name varchar(30));
Query OK, 0 rows affected (0.01 sec)

mysql> select * from users;
+----+------+
| id | name |
+----+------+
|  2 | jack |
|  4 | tom  |
+----+------+
2 rows in set (0.00 sec)

mysql> insert into users(name) values('lucy'),('lily');
Query OK, 2 rows affected (0.00 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql> select * from users;
+----+------+
| id | name |
+----+------+
|  2 | jack |
|  4 | tom  |
|  5 | lucy |
|  7 | lily |
+----+------+
4 rows in set (0.00 sec)

mysql> insert into users(name) values('aa'),('bb');
Query OK, 2 rows affected (0.00 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql> select * from users;
+----+------+
| id | name |
+----+------+
|  2 | jack |
|  4 | tom  |
|  5 | lucy |
|  7 | lily |
|  9 | aa   |
| 11 | bb   |
+----+------+
6 rows in set (0.00 sec)