- 3.2、mysqldump备份数据库
[root@localhost-m(252) /usr/local/src]# mysqldump -uroot -p123456 --single-transaction --master-data=2 -E -R --ignore-table=mysql.* --flush-logs -A >/r2/bak_sql/all_20171201.sql
[root@localhost-m(252) /usr/local/src]# cd /r2/bak_sql/
[root@localhost-m(252) /r2/bak_sql]# ls -lsh
total 102M
102M -rw-r--r-- 1 root root 102M 12月 1 17:16 all_20171201.sql- 3.3、关闭 MySQL 5.5 实例
[root@localhost-m(252) /r2/bak_sql]# /etc/init.d/mysqld stop
Shutting down MySQL.. SUCCESS!
[root@localhost-m(252) /r2/bak_sql]# ps -ef |grep mysqld
root 105281 82231 0 18:19 pts/4 00:00:00 grep --color=auto mysqld- 3.4、通过物理备份数据库（
升级失败回退时使用）
-- 在实例关闭之后，通过 cp datadir 目录的方式来备份。
[root@localhost-m(252) /r2/bak_sql]# cd /r2/
[root@localhost-m(252) /r2]# mv mysqldata mysqldatabak四、升级MySQL版本
1、安装 MySQL 5.7
[root@localhost-m(252) /usr/local/src]# pwd /usr/local/src [root@localhost-m(252) /usr/local/src]# ll |grep mysql -rw-r--r-- 1 root root 654430368 12月 1 16:05 mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz drwxr-xr-x 14 mysql mysql 4096 7月 31 17:03 zabbix-3.2.7 [root@localhost-m(252) /usr/local/src]# mv /usr/local/mysql /usr/local/mysql5.5 [root@localhost-m(252) /usr/local/src]# md5sum mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz --校验tar包MD5与官网MD5对比是否正确 ebc8cbdaa9c356255ef82bd989b07cfb mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz [root@localhost-m(252) /usr/local/src]# tar zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /usr/local/ mysql-5.7.18-linux-glibc2.5-x86_64/bin/myisam_ftdump mysql-5.7.18-linux-glibc2.5-x86_64/bin/myisamchk ...... mysql-5.7.18-linux-glibc2.5-x86_64/docs/INFO_SRC [root@localhost-m(252) /usr/local]# ll |grep mysql drwxr-xr-x. 13 root root 4096 3月 9 2016 mysql5.5 drwxr-xr-x 9 root root 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_64 [root@localhost-m(252) /usr/local]# ln -s mysql-5.7.18-linux-glibc2.5-x86_64 mysql [root@localhost-m(252) /usr/local]# ll |grep mysql lrwxrwxrwx 1 root root 34 12月 4 09:20 mysql -> mysql-5.7.18-linux-glibc2.5-x86_64 drwxr-xr-x. 13 root root 4096 3月 9 2016 mysql5.5 drwxr-xr-x 9 root root 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_642、修改相关目录的权限
[root@localhost-m(252) /usr/local]# chown -R mysql.mysql mysql [root@localhost-m(252) /usr/local]# chown -R mysql.mysql mysql-5.7.18-linux-glibc2.5-x86_643、检查改环境变量
[root@localhost-m(252) /r2/mysqldata]# which mysql /usr/local/mysql/bin/mysql --如何没有，在/etc/profile 文件中的添加export PATH=/usr/local/mysql/bin:$PATH 使用 source /etc/profile 刷新配置 [root@localhost-m(252) /r2/mysqldata]# source /etc/profile [root@localhost-m(252) /r2/mysqldata]# which mysql /usr/local/mysql/bin/mysql
五、修改 my.cnf 配置文件并启动 MySQL 5.7
1、修改 my.cnf 配置文件
- 1.1、备份 my.cnf 配置文件
[root@localhost-m(252) /usr/local]# cp /etc/my.cnf /r2/mysqldatabak/my_5.5.33.cnf --备份配置文件- 1.2、参照模板修改
my.cnf配置文件- 模板配置文件如下：
# line： V1.4 # mail: gczheng@139.com # data: 2017-12-04 # file_name: my.cnf [client] port = 3306 socket = /r2/mysqldata/mysql.sock #======================================================================= # # MySQL客户端配置 #======================================================================= [mysql] prompt="(\u@\h) \\R:\\m:\\s [\d]> " no-auto-rehash #======================================================================= # MySQL服务器全局配置 #======================================================================= [mysqld] user = mysql port = 3306 server-id = 48168 tmpdir = /r2/mysqldata datadir = /r2/mysqldata socket = /r2/mysqldata/mysql.sock wait_timeout = 31536000 #interactive_timeout = 600 sql_mode = #sql_mode 配置为空值 skip_name_resolve = 1 lower_case_table_names = 0 character-set-server = utf8 #auto_increment_increment = 1 #auto_increment_offset = 1 log_timestamps = SYSTEM init_connect=‘SET NAMES utf8‘ ######################### 性能参数 #################### open_files_limit = 1024000 max_connections = 10000 max_user_connections=9990 max_connect_errors = 100000 table_open_cache = 1024 max_allowed_packet = 128M thread_cache_size = 64 max_heap_table_size = 32M query_cache_type = 0 ###global cache ### key_buffer_size = 1G query_cache_size = 0 ###session cache ### sort_buffer_size = 8M #排序缓冲 join_buffer_size = 4M #表连接缓冲 read_buffer_size = 8M #顺序读缓冲 read_rnd_buffer_size = 8M #随机读缓冲 tmp_table_size = 32M #内存临时表 binlog_cache_size = 4M #二进制日志缓冲 thread_stack = 256KB #线程的堆栈的大小 ######################### binlog设置 ##################### binlog_format = MIXED log_bin = /r2/mysqldata/binlog max_binlog_cache_size = 1G max_binlog_size = 1G expire_logs_days = 30 sync_binlog =1 ######################### 复制设置 ######################## log_slave_updates=1 #replicate-do-db=User #binlog-ignore-db = test #slave-skip-errors=1146,1032,1062 ### GTID 配置 ### gtid_mode=ON enforce-gtid-consistency=true ### 开启并行复制（从库） #### #slave-parallel-type=LOGICAL_CLOCK #基于组提交的并行复制方式 #slave-parallel-workers=24 #并行的SQL线程数量 #master-info_repository=TABLE #master信息以表的形式保存 #relay_log_info_repository=TABLE #slave信息以表的形式保存 #relay_log_recovery=ON #relay_log自我修复 ######################### innodb ########################## default_storage_engine = InnoDB innodb_data_file_path = ibdata1:1G:autoextend innodb_buffer_pool_size = 32G #系统内存50% innodb_open_files = 100000 innodb_flush_log_at_trx_commit = 1 innodb_file_per_table = 1 innodb_lock_wait_timeout = 5 #根据服务器IOPS能力适当调整innodb_io_capacity,一般配普通SSD盘的话，可以调整到 10000 - 20000 innodb_io_capacity = 10000 innodb_io_capacity_max = 20000 innodb_flush_method = O_DIRECT innodb_log_file_size = 2G innodb_log_files_in_group = 2 innodb_large_prefix = 0 innodb_thread_concurrency = 64 innodb_strict_mode = OFF innodb_sort_buffer_size = 4194304 ### undolog设置 ### innodb_undo_directory = /r2/undolog #undolog日志目录 innodb_undo_tablespaces = 3 #undolog日志文件个数 innodb_undo_logs = 128 #回滚段的数量， 至少大于等于35，默认128。 innodb_max_undo_log_size = 1G #当超过这个阀值（默认是1G），会触发truncate回收（收缩）动作，truncate后空间缩小到10M。 innodb_purge_rseg_truncate_frequency = 128 #控制回收（收缩）undolog的频率 innodb_undo_log_truncate = 1 #即开启在线回收undolog日志文件 ######################### log 设置 ##################### log_error = /r2/mysqldata/error.log slow_query_log = 1 long_query_time = 10 slow_query_log_file = /r2/mysqldata/slow.log #======================================================================= # MySQL mysqldump配置 #======================================================================= [mysqldump] quick max_allowed_packet = 32M #======================================================================= # MySQL mysqld_safe配置 #======================================================================= [mysqld_safe] log_error = /r2/mysqldata/error.log pid_file = /r2/mysqldata/mysqldb.pid2、配置MySQL目录和权限
- 2.1、配置MySQL目录和权限
[root@localhost-m(252) /usr/local]# mkdir -p /r2/mysqldata [root@localhost-m(252) /usr/local]# cd /r2/mysqldata [root@localhost-m(252) /r2/mysqldata]# mkdir -p /r2/undolog [root@localhost-m(252) /r2/mysqldata]# chown -R mysql.mysql /r2/undolog [root@localhost-m(252) /r2/mysqldata]# chown -R mysql.mysql /r2/mysqldata [root@localhost-m(252) /r2/mysqldata]# ll /r2 |grep undolog drwxr-xr-x 2 mysql mysql 4096 12月 4 10:57 undolog3、初始化MySQL和启动
- 3.1、初始化MySQL5.7,获取随机密码
[root@localhost-m(252) /r2/mysqldata]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --获取随机密码 [root@localhost-m(252) /r2/mysqldata]# grep password /r2/mysqldata/error.log 2017-12-04T11:00:12.112903+08:00 1 [Note] A temporary password is generated for root@localhost: ;YV-le1Y5UYa- 3.2添加MySQL服务到启动项，并启动mysql5.7
[root@localhost-m(252) /r2/mysqldata]# cat > /usr/lib/systemd/system/mysql.service <EOF [Unit] Description=Mysql After=syslog.target network.target remote-fs.target nss-lookup.target [Service] Type=forking #PIDFile=/r2/mysqldata/mysqldb.pid ExecStart=/usr/local/mysql/support-files/mysql.server start ExecReload=/usr/local/mysql/support-files/mysql.server restart ExecStop=/usr/local/mysql/support-files/mysql.server stop LimitNOFILE = 65535 PrivateTmp=false [Install] WantedBy=multi-user.target EOF [root@localhost-m(252) /r2/mysqldata]# systemctl daemon-reload [root@localhost-m(252) /r2/mysqldata]# systemctl start mysql --确认是否启动成功 [root@localhost-m(252) /r2/mysqldata]# systemctl status mysql ● mysql.service - Mysql Loaded: loaded (/usr/lib/systemd/system/mysql.service; disabled; vendor preset: disabled) Active: active (running) since 一 2017-12-04 11:32:29 CST; 6s ago Process: 65996 ExecStart=/usr/local/mysql/support-files/mysql.server start (code=exited, status=0/SUCCESS) Main PID: 66004 (mysqld_safe) CGroup: /system.slice/mysql.service ├─66004 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/r2/mysqldata --pid-file=/r2/mysqldata/localhost.localdomain.pid └─66894 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/r2/mysqldata --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/r2/mysqldata/error.lo... 12月 04 11:32:26 localhost.localdomain systemd[1]: Starting Mysql... 12月 04 11:32:29 localhost.localdomain mysql.server[65996]: Starting MySQL... SUCCESS! 12月 04 11:32:29 localhost.localdomain systemd[1]: Started Mysql. [root@localhost-m(252) /r2/mysqldata]# ps -ef | grep mysqld | grep -v grep root 66004 1 0 11:32 ? 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/r2/mysqldata --pid-file=/r2/mysqldata/localhost.localdomain.pid mysql 66894 66004 1 11:32 ? 00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/r2/mysqldata --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/r2/mysqldata/error.log --open-files-limit=1024000 --pid-file=/r2/mysqldata/localhost.localdomain.pid --socket=/r2/mysqldata/mysql.sock --port=33064、添加MySQL自启动服务
[root@localhost-m(252) /r2/mysqldata]# systemctl enable mysql Created symlink from /etc/systemd/system/multi-user.target.wants/mysql.service to /usr/lib/systemd/system/mysql.service. [root@localhost-m(252) /r2/mysqldata]# systemctl list-unit-files |grep mysql mysql.service enabled pmm-mysql-metrics-42002.service enabled pmm-mysql-queries-0.service enabled [root@localhost-m(252) /r2/mysqldata]#
六、导入备份的权限和数据
1、导入权限sql
--直接导入会报错,需要先修改root@localhost密码，然后再导入 [root@localhost-m(252) /r2/mysqldata]# mysql -uroot -p Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 784 Server version: 5.7.18-log MySQL Community Server (GPL) Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement. root@ipanel 11:45: [(none)]> source /usr/local/src/grants.sql ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. --提示用alter user更改密码 root@ipanel 11:47: [(none)]> alter user root@localhost identified by ‘123456‘; --更改随机密码 Query OK, 0 rows affected (0.00 sec) root@ipanel 11:48: [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec) root@ipanel 11:48: [(none)]> source /usr/local/src/grants.sql --导入原来的账号密码,其中包括原来root账号密码 Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected, 2 warnings (0.00 sec) Query OK, 0 rows affected, 3 warnings (0.00 sec) Query OK, 0 rows affected, 3 warnings (0.00 sec) Query OK, 0 rows affected, 1 warning (0.00 sec) root@ipanel 11:48: [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec) root@ipanel 11:49: [(none)]> select user,host,authentication_string from mysql.user; +-----------+-----------+-------------------------------------------+ | user | host | authentication_string | +-----------+-----------+-------------------------------------------+ | root | localhost | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | ······ | operator | localhost | **xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | +-----------+-----------+-------------------------------------------+ 9 rows in set (0.00 sec)2、导入主库备份文件
[root@localhost-m(252) /r2/mysqldata]# mysql -uroot -pxxxxx </r2/bak_sql/all_20171201.sql- 3、确认升级是否成功
- 检查error，是否有报错
- 重启数据库验证是否有无报错
- 验证账号是否可用（业务部门确认）
[root@localhost-m(252) /r2/mysqldata]# cat /r2/mysqldata/error.log |grep error [root@localhost-m(252) /r2/mysqldata]# systemctl stop mysql [root@localhost-m(252) /r2/mysqldata]# systemctl status mysql ● mysql.service - Mysql Loaded: loaded (/usr/lib/systemd/system/mysql.service; enabled; vendor preset: disabled) Active: inactive (dead) since 一 2017-12-04 14:58:57 CST; 10s ago Process: 80083 ExecStop=/usr/local/mysql/support-files/mysql.server stop (code=exited, status=0/SUCCESS) Main PID: 66004 (code=exited, status=0/SUCCESS) 12月 04 11:32:26 localhost.localdomain systemd[1]: Starting Mysql... 12月 04 11:32:29 localhost.localdomain mysql.server[65996]: Starting MySQL... SUCCESS! 12月 04 11:32:29 localhost.localdomain systemd[1]: Started Mysql. 12月 04 14:58:44 localhost.localdomain systemd[1]: Stopping Mysql... 12月 04 14:58:57 localhost.localdomain mysql.server[80083]: Shutting down MySQL............. SUCCESS! 12月 04 14:58:57 localhost.localdomain systemd[1]: Stopped Mysql. [root@localhost-m(252) /r2/mysqldata]# systemctl start mysql [root@localhost-m(252) /r2/mysqldata]# systemctl status mysql ● mysql.service - Mysql Loaded: loaded (/usr/lib/systemd/system/mysql.service; enabled; vendor preset: disabled) Active: active (running) since 一 2017-12-04 14:59:18 CST; 1s ago Process: 80083 ExecStop=/usr/local/mysql/support-files/mysql.server stop (code=exited, status=0/SUCCESS) Process: 80207 ExecStart=/usr/local/mysql/support-files/mysql.server start (code=exited, status=0/SUCCESS) Main PID: 80215 (mysqld_safe) CGroup: /system.slice/mysql.service ├─80215 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/r2/mysqldata --pid-file=/r2/mysqldata/localhost.localdomain.pid └─81105 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/r2/mysqldata --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/r2/mysqldata/error.lo... 12月 04 14:59:15 localhost.localdomain systemd[1]: Starting Mysql... 12月 04 14:59:18 localhost.localdomain mysql.server[80207]: Starting MySQL... SUCCESS! 12月 04 14:59:18 localhost.localdomain systemd[1]: Started Mysql. 4、升级完成,清除权限文件后,请跳过步骤II(回滚)，直接进入步骤III
[root@localhost-m(252) /r2/mysqldata]# rm /usr/local/src/grants.sql rm: remove regular file ‘/usr/local/src/grants.sql’? YII、升级失败回滚
一、升级回退到mysql5.5
1、关闭数据库
[root@localhost-m(252) /r2/mysqldata]# systemctl stop mysql [root@localhost-m(252) /r2/mysqldata]# ps -ef |grep mysqld root 85807 64413 0 16:13 pts/0 00:00:00 grep --color=auto mysqld2、恢复5.5.33数据目录
[root@localhost-m(252) /r2]# pwd
/r2
[root@localhost-m(252) /r2]# mv mysqldata mysqldata57bak
[root@localhost-m(252) /r2]# mv mysqldatabak mysqldata- 2、恢复5.5.33配置文件
[root@localhost-m(252) /r2]# cp /etc/my.cnf mysqldata57bak/my.cnf
[root@localhost-m(252) /r2]# cp mysqldata/my.cnf /etc/my.cnf
cp: overwrite ‘/etc/my.cnf’? y- 3、恢复mysql5.5.33 软件
[root@localhost-m(252) /r2]# cd /usr/local/
[root@localhost-m(252) /usr/local]# ll |grep mysql
lrwxrwxrwx 1 mysql mysql 34 12月 4 09:20 mysql -> mysql-5.7.18-linux-glibc2.5-x86_64 --mysql链接5.7
drwxr-xr-x. 13 root root 4096 3月 9 2016 mysql5.5
drwxr-xr-x 9 mysql mysql 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_64
-- 删除5.7 mysql链接
[root@localhost-m(252) /usr/local]# rm mysql
rm: remove symbolic link ‘mysql’? y
[root@localhost-m(252) /usr/local]# ll |grep mysql
drwxr-xr-x. 13 root root 4096 3月 9 2016 mysql5.5
drwxr-xr-x 9 mysql mysql 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_64
--重建5.5.33 链接
[root@localhost-m(252) /usr/local]# ln -s mysql5.5 mysql
[root@localhost-m(252) /usr/local]# ll |grep mysql
lrwxrwxrwx 1 root root 8 12月 4 16:19 mysql -> mysql5.5 --mysql链接到5.5
drwxr-xr-x. 13 root root 4096 3月 9 2016 mysql5.5
drwxr-xr-x 9 mysql mysql 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_64
--重新授权软件目录权限
[root@localhost-m(252) /usr/local]# chown -R mysql.mysql /usr/local/mysql
[root@localhost-m(252) /usr/local]# chown -R mysql.mysql /usr/local/mysql5.5
[root@localhost-m(252) /usr/local]# ll |grep mysql
lrwxrwxrwx 1 mysql mysql 8 12月 4 16:19 mysql -> mysql5.5
drwxr-xr-x. 13 mysql mysql 4096 3月 9 2016 mysql5.5
drwxr-xr-x 9 mysql mysql 4096 12月 4 09:18 mysql-5.7.18-linux-glibc2.5-x86_64
--重新授权数据目录权限
[root@localhost-m(252) /usr/local]# chown -R mysql.mysql /r2/mysqldata
[root@localhost-m(252) /usr/local]# ll /r2/ |grep mysqldata
drwxr-xr-x 64 mysql mysql 4096 12月 4 16:28 mysqldata
drwxr-xr-x 53 mysql mysql 12288 12月 4 16:16 mysqldata57bak- 4、启动mysql5.5实例
[root@localhost-m(252) /usr/local]# systemctl start mysql
[root@localhost-m(252) /usr/local]# systemctl status mysql
● mysql.service - Mysql
Loaded: loaded (/usr/lib/systemd/system/mysql.service; enabled; vendor preset: disabled)
Active: active (running) since 一 2017-12-04 16:28:15 CST; 5s ago
Process: 89752 ExecStart=/usr/local/mysql/support-files/mysql.server start (code=exited, status=0/SUCCESS)
Main PID: 89764 (mysqld_safe)
CGroup: /system.slice/mysql.service
├─89764 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/r2/mysqldata --pid-file=/r2/mysqldata/localhost.localdomain.pid
└─90233 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/r2/mysqldata --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/r2/mysqldata/localhos...
12月 04 16:28:13 localhost.localdomain systemd[1]: Starting Mysql...
12月 04 16:28:15 localhost.localdomain mysql.server[89752]: Starting MySQL.. SUCCESS!
12月 04 16:28:15 localhost.localdomain systemd[1]: Started Mysql.
[root@localhost-m(252) /usr/local]# ps -ef |grep mysqld |grep -v grep
root 89764 1 0 16:28 ? 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/r2/mysqldata --pid-file=/r2/mysqldata/localhost.localdomain.pid
mysql 90233 89764 0 16:28 ? 00:00:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/r2/mysqldata --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/r2/mysqldata/localhost.localdomain.err --pid-file=/r2/mysqldata/localhost.localdomain.pid --socket=/r2/mysqldata/mysql.sock --port=3306- 5、登录验证mysql5.5实例
[root@localhost-m(252) /usr/local]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.33-log Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql>III、配置主从复制
一、配置基于GTID的并行复制
例如：主库（192.68.48.168）和从库（192.168.24.180）
1、从库（192.168.24.180）
从库
my.cnf添加并行复制参数，修改server-id=2### 开启并行复制（从库） #### slave-parallel-type=LOGICAL_CLOCK #基于组提交的并行复制方式 slave-parallel-workers=24 #并行的SQL线程数量 master-info_repository=TABLE #master信息以表的形式保存 relay_log_info_repository=TABLE #slave信息以表的形式保存 relay_log_recovery=ON #relay_log自我修复
2、建立主从复制
- 2.1.从原主库复制备份文件，从库导入原主库备份文件
[root@proxy r2]# cd bak_sql/ [root@proxy bak_sql]# scp 192.168.48.168:/r2/bak_sql/all_20171201.sql ./- 2.2.建立GTID主从复制
[root@proxy ~]# mysql -uroot -p (root@localhost) 19:15:50 [(none)]> source /r2/bak_sql/all_20171201.sql (root@localhost) 20:01:14 [(none)]> change master to -> master_host=‘192.168.48.168‘, -> master_user=‘repl‘, -> master_password=‘repl‘, -> master_auto_position = 1; Query OK, 0 rows affected, 2 warnings (0.02 sec) (root@localhost) 20:04:49 [(none)]> start slave; Query OK, 0 rows affected (0.09 sec) (root@localhost) 20:04:55 [(none)]> show slave status \G; *************************** 1. row *************************** Slave_IO_State: Queueing master event to the relay log Master_Host: 192.168.48.168 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: binlog.000002 Read_Master_Log_Pos: 139295376 Relay_Log_File: proxy-relay-bin.000002 Relay_Log_Pos: 81035047 Relay_Master_Log_File: binlog.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: 81034840 Relay_Log_Space: 139295790 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: 10279 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: 1 Master_UUID: 3eae5854-d89f-11e7-ab20-246e960a8d84 Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Waiting for dependent transaction to commit Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-2476 Executed_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-1408, 9dc847d8-bf72-11e7-9ec4-000c2998e4f1:1-2845713 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.01 sec) ERROR: No query specified- 2.3 检查多线程复制
--slave启动了24个线程（Waiting for an event from Coordinator） (root@localhost) 15:34:15 [(none)]> show processlist; +----+-------------+-----------+------+---------+---------+--------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-------------+-----------+------+---------+---------+--------------------------------------------------------+------------------+ | 4 | system user | | NULL | Connect | 1366166 | Waiting for master to send event | NULL | | 5 | system user | | NULL | Connect | 1364215 | Slave has read all relay log; waiting for more updates | NULL | | 6 | system user | | NULL | Connect | 843 | Waiting for an event from Coordinator | NULL | | 7 | system user | | NULL | Connect | 12366 | Waiting for an event from Coordinator | NULL | | 8 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 9 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 10 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 11 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 12 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 13 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 14 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 15 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 16 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 17 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 18 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 19 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 20 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 21 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 22 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 23 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 24 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 25 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 26 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 27 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 28 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 29 | system user | | NULL | Connect | 1366166 | Waiting for an event from Coordinator | NULL | | 49 | root | localhost | NULL | Query | 0 | starting | show processlist | +----+-------------+-----------+------+---------+---------+--------------------------------------------------------+------------------+ 27 rows in set (0.00 sec)- 2.4、验证主从复制（增删改查）
--主库 mysql> create database tttt; Query OK, 1 row affected (0.00 sec) mysql> create table tttt.aa(a int); Query OK, 0 rows affected (0.05 sec) mysql> insert into tttt.aa values(1); Query OK, 1 row affected (0.00 sec) mysql> insert into tttt.aa values(2); Query OK, 1 row affected (0.00 sec) mysql> select * from tttt.aa; +------+ | a | +------+ | 1 | | 2 | +------+ 2 rows in set (0.00 sec) mysql> update tttt.aa set a=10 where a =1; Query OK, 1 row affected (0.03 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> delete from tttt.aa where a =2; Query OK, 1 row affected (0.00 sec) mysql> select * from tttt.aa; +------+ | a | +------+ | 10 | +------+ 1 row in set (0.00 sec)--从库 (root@localhost) 15:39:28 [(none)]> select * from tttt.aa; +------+ | a | +------+ | 10 | +------+ 1 row in set (0.00 sec)2.5、 drop 测试库
mysql> drop database tttt; Query OK, 1 row affected (0.06 sec)IV、确认服务正常
一、业务开启，观察数据，确认从库是否正常接收到数据
主库
(root@localhost) 10:04:08 [(none)]> show master status \G; *************************** 1. row *************************** File: binlog.000004 Position: 38701778 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-7887 1 row in set (0.00 sec) ERROR: No query specified (root@localhost) 10:04:08 [(none)]> show master status \G; *************************** 1. row *************************** File: binlog.000004 Position: 41768570 --当数据写入binlog pos点一直在变 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-7890 --GTID值也在变化 1 row in set (0.00 sec) ERROR: No query specified (root@localhost) 10:04:21 [(none)]> show master status \G; *************************** 1. row *************************** File: binlog.000004 Position: 43813112 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-7892 1 row in set (0.00 sec)从库
(root@localhost) 12:10:37 [(none)]> show slave status \G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.48.168 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: binlog.000004 Read_Master_Log_Pos: 105168419 Relay_Log_File: proxy-relay-bin.000004 Relay_Log_Pos: 105168472 Relay_Master_Log_File: binlog.000004 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: 105168265 Relay_Log_Space: 105170645 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: 1 Master_UUID: 3eae5854-d89f-11e7-ab20-246e960a8d84 Master_Info_File: mysql.slave_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: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-7952 Executed_Gtid_Set: 3eae5854-d89f-11e7-ab20-246e960a8d84:1-7952, 9dc847d8-bf72-11e7-9ec4-000c2998e4f1:1-2845713 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified (root@localhost) 12:10:48 [(none)]> show slave status \G; *************************** 1. row ***************************