percona-xtrabackup工具实现mysql5.6.34的主从同步复制
下载并安装percona-xtrabackup工具
# wget https://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.7/binary/redhat/6/x86_64/percona-xtrabackup-24-2.4.7-1.el6.x86_64.rpm # yum localinstall -y percona-xtrabackup-24-2.4.7-1.el6.x86_64.rpm
1.备份，将mysql数据库整个备份到/opt/目录下
# innobackupex --defaults-file="/etc/my.cnf" --user=root -proot --socket=/tmp/mysql.sock /opt
2.预处理，进行事物检查(也可以拷贝到从库后再进行检查)
# innobackupex --defaults-file="/etc/my.cnf" --user=root -proot --socket=/tmp/mysql.sock --apply-log --use-memory=1G /opt/2017-05-18_00-13-42/
3.scp到从库
[root@centossz008 ~]# scp -r /opt/2017-05-18_01-34-42/ 192.168.3.13:/opt
4.关闭从库，清理从库数据，恢复数据到从库
/etc/init.d/mysqld stop
删除从库的数据和日志信息
[root@node5 ~]# rm -rf /data/*
在从库上执行(将数据恢复到数据库中)
[root@node5 ~]# innobackupex --defaults-file="/etc/my.cnf" --user=root --socket=/tmp/mysql.sock --move-back /opt/2017-05-18_01-34-42/
5.修改权限，启动从库
[root@node5 mydata]# chown -R mysql.mysql /data [root@node5 mydata]# /etc/init.d/mysqld start
查看主库中master位置
[root@node5 mydata]# cat /opt/2017-05-18_01-34-42/xtrabackup_binlog_info master-bin.000002 191 4c6237f8-a7da-11e6-9966-000c29f333f8:1-2
6.主库中创建建salve同步用户
mysql> grant replication slave,reload,super on *.* to repluser@192.168.3.13 identified by 'replpass'; mysql> FLUSH PRIVILEGES;
7.从库执行同步
mysql> change master to master_host='192.168.3.12',master_user='repluser',master_password='replpass',master_log_file='master-bin.000002',master_log_pos=191; mysql> start slave; mysql> show slave status\G
########################################################################
延迟复制：
启用方法：
mysql> stop slave; mysql> change master to master_delay=600; mysql> start slave;
应用场景：
1.误删除恢复
2.延迟测试(当有延迟时业务是否会受影响)
3.历史查询
mysql master 配置
[root@centossz008 ~]# cat /etc/my.cnf [client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] port = 3306 innodb_file_per_table = 1 binlog-format=ROW log-slave-updates=true gtid-mode=on enforce-gtid-consistency=true master-info-repository=file relay-log-info-repository=file sync-master-info=1 slave-parallel-workers=4 binlog-checksum=CRC32 master-verify-checksum=1 slave-sql-verify-checksum=1 binlog-rows-query-log_events=1 server-id=100 report-port=3306 log-bin=/data/binlogs/master-bin max_binlog_size = 200M datadir=/data/mydata socket=/tmp/mysql.sock sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 skip-name-resolve skip-external-locking back_log = 300 max_connections = 1024 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 16M query_cache_limit = 2M ft_min_word_len = 4 expire_logs_days = 10 performance_schema = 0 explicit_defaults_for_timestamp default_storage_engine = InnoDB innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 4 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 512M myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
mysql slave 配置
[root@node5 src]# cat /etc/my.cnf [client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] port = 3306 innodb_file_per_table = 1 binlog-format=ROW log-slave-updates=true gtid-mode=on enforce-gtid-consistency=true master-info-repository=file relay-log-info-repository=file sync-master-info=1 slave-parallel-workers=4 binlog-checksum=CRC32 master-verify-checksum=1 slave-sql-verify-checksum=1 binlog-rows-query-log_events=1 server-id=200 report-port=3306 log-bin=/data/binlogs/master-bin relay-log=/data/relaylogs/relay-bin max_binlog_size = 200M datadir=/data/mydata socket=/tmp/mysql.sock sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 skip-name-resolve skip-external-locking back_log = 300 max_connections = 1024 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 16M query_cache_limit = 2M ft_min_word_len = 4 expire_logs_days = 10 performance_schema = 0 explicit_defaults_for_timestamp default_storage_engine = InnoDB innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 4 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 512M myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
半同步复制
1、主库
#查看是否有动态支持 mysql> show global variables like 'have_dynamic_loading'; #安装自带插件 mysql> INSTALL PLUGIN rpl_semi_sync_master SONAME'semisync_master.so'; #启动插件 mysql> SET GLOBAL rpl_semi_sync_master_enabled = 1; #设置超时（单位为秒） mysql> SET GLOBAL rpl_semi_sync_master_timeout = 1000;
vim /etc/my.cnf
[mysqld] rpl_semi_sync_master_enabled=1 rpl_semi_sync_master_timeout=1000
检查安装：
mysql> show variables like'rpl%'; mysql> show global status like 'rpl_semi%';
2、从库
#安装slave半同步插件 mysql> INSTALL PLUGIN rpl_semi_sync_slave SONAME'semisync_slave.so'; #启动插件 mysql> SET GLOBAL rpl_semi_sync_slave_enabled = 1; #重启io线程使其生效 mysql> stop slave io_thread; start slave io_thread;
vim /etc/my.cnf
[mysqld] rpl_semi_sync_slave_enabled =1
percona-xtrabackup工具实现mysql5.6.34的主从同步复制
下载并安装percona-xtrabackup工具
# wget https://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.7/binary/redhat/6/x86_64/percona-xtrabackup-24-2.4.7-1.el6.x86_64.rpm # yum localinstall -y percona-xtrabackup-24-2.4.7-1.el6.x86_64.rpm
1.备份，将mysql数据库整个备份到/opt/目录下
# innobackupex --defaults-file="/etc/my.cnf" --user=root -proot --socket=/tmp/mysql.sock /opt
2.预处理，进行事物检查(也可以拷贝到从库后再进行检查)
# innobackupex --defaults-file="/etc/my.cnf" --user=root -proot --socket=/tmp/mysql.sock --apply-log --use-memory=1G /opt/2017-05-18_00-13-42/
3.scp到从库
[root@centossz008 ~]# scp -r /opt/2017-05-18_01-34-42/ 192.168.3.13:/opt
4.关闭从库，清理从库数据，恢复数据到从库
/etc/init.d/mysqld stop
删除从库的数据和日志信息
[root@node5 ~]# rm -rf /data/*
在从库上执行(将数据恢复到数据库中)
[root@node5 ~]# innobackupex --defaults-file="/etc/my.cnf" --user=root --socket=/tmp/mysql.sock --move-back /opt/2017-05-18_01-34-42/
5.修改权限，启动从库
[root@node5 mydata]# chown -R mysql.mysql /data [root@node5 mydata]# /etc/init.d/mysqld start
查看主库中master位置
[root@node5 mydata]# cat /opt/2017-05-18_01-34-42/xtrabackup_binlog_info master-bin.000002 191 4c6237f8-a7da-11e6-9966-000c29f333f8:1-2
6.主库中创建建salve同步用户
mysql> grant replication slave,reload,super on *.* to repluser@192.168.3.13 identified by 'replpass'; mysql> FLUSH PRIVILEGES;
7.从库执行同步
mysql> change master to master_host='192.168.3.12',master_user='repluser',master_password='replpass',master_log_file='master-bin.000002',master_log_pos=191; mysql> start slave; mysql> show slave status\G
########################################################################
延迟复制：
启用方法：
mysql> stop slave; mysql> change master to master_delay=600; mysql> start slave;
应用场景：
1.误删除恢复
2.延迟测试(当有延迟时业务是否会受影响)
3.历史查询
mysql master 配置
[root@centossz008 ~]# cat /etc/my.cnf [client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] port = 3306 innodb_file_per_table = 1 binlog-format=ROW log-slave-updates=true gtid-mode=on enforce-gtid-consistency=true master-info-repository=file relay-log-info-repository=file sync-master-info=1 slave-parallel-workers=4 binlog-checksum=CRC32 master-verify-checksum=1 slave-sql-verify-checksum=1 binlog-rows-query-log_events=1 server-id=100 report-port=3306 log-bin=/data/binlogs/master-bin max_binlog_size = 200M datadir=/data/mydata socket=/tmp/mysql.sock sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 skip-name-resolve skip-external-locking back_log = 300 max_connections = 1024 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 16M query_cache_limit = 2M ft_min_word_len = 4 expire_logs_days = 10 performance_schema = 0 explicit_defaults_for_timestamp default_storage_engine = InnoDB innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 4 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 512M myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
mysql slave 配置
[root@node5 src]# cat /etc/my.cnf [client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] port = 3306 innodb_file_per_table = 1 binlog-format=ROW log-slave-updates=true gtid-mode=on enforce-gtid-consistency=true master-info-repository=file relay-log-info-repository=file sync-master-info=1 slave-parallel-workers=4 binlog-checksum=CRC32 master-verify-checksum=1 slave-sql-verify-checksum=1 binlog-rows-query-log_events=1 server-id=200 report-port=3306 log-bin=/data/binlogs/master-bin relay-log=/data/relaylogs/relay-bin max_binlog_size = 200M datadir=/data/mydata socket=/tmp/mysql.sock sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 skip-name-resolve skip-external-locking back_log = 300 max_connections = 1024 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 16M query_cache_limit = 2M ft_min_word_len = 4 expire_logs_days = 10 performance_schema = 0 explicit_defaults_for_timestamp default_storage_engine = InnoDB innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 4 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 512M myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
半同步复制
1、主库
#查看是否有动态支持 mysql> show global variables like 'have_dynamic_loading'; #安装自带插件 mysql> INSTALL PLUGIN rpl_semi_sync_master SONAME'semisync_master.so'; #启动插件 mysql> SET GLOBAL rpl_semi_sync_master_enabled = 1; #设置超时（单位为秒） mysql> SET GLOBAL rpl_semi_sync_master_timeout = 1000;
vim /etc/my.cnf
[mysqld] rpl_semi_sync_master_enabled=1 rpl_semi_sync_master_timeout=1000
检查安装：
mysql> show variables like'rpl%'; mysql> show global status like 'rpl_semi%';
2、从库
#安装slave半同步插件 mysql> INSTALL PLUGIN rpl_semi_sync_slave SONAME'semisync_slave.so'; #启动插件 mysql> SET GLOBAL rpl_semi_sync_slave_enabled = 1; #重启io线程使其生效 mysql> stop slave io_thread; start slave io_thread;
vim /etc/my.cnf
[mysqld] rpl_semi_sync_slave_enabled =1