版本升级--自测
从库
------------
停止主从复制
stop slave
全库备份
mysqldump -u root -p -S mysql.sock --all-databases>/data/mysql/standby/dump.sql
加-R参数可备份函数
备份数据库global variables参数
mysql -uroot -p -Bse "show global variables" > /data/mysql/standby/before_var.cnf
备份my.cnf配置文件
cp standby.cnf standby.cnf.bak
备份basedir目录
mkdir -p /mysqlbackup/basedir_bak
cd /usr/local
tar -cvf mysql.tar mysql
mv *.tar /mysqlbackup/basedir_bak
mkdir -p /mysqlbackup/
mv mysql/ /mysqlbackup/
进入到bin目录关闭mysql服务
cd /mysqlbackup/mysql/bin
设置慢关闭
./mysql -uroot -p -e "SET GLOBAL innodb_fast_shutdown=0;" --socket=/data/mysql/standby/mysql.sock
查看是否设置为0
./mysql -uroot -p --socket=/data/mysql/standby/mysql.sock -e "show global variables like '%fast_shutdown%';"
关闭mysql数据库
./mysqladmin -uroot -p -S /data/mysql/standby/mysql.sock shutdown
记录binlog位置和pos信息
tail -300f /data/mysql/standby/elog/mysql.err
read up to log 'mysql-bin.000001', position 6451
解压软件包
cd /data/mysql
tar -xvf mysql-boost-5.7.21.tar.gz
编译5.7.21版本
cd mysql-5.7.21
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=all -DENABLED_LOCAL_INFILE=1 -DWITH_BOOST=/data/mysql/mysql-5.7.21/boost
修改版本
[root@rac02 mysql-5.7.21]# cat VERSION
MYSQL_VERSION_MAJOR=5
MYSQL_VERSION_MINOR=7
MYSQL_VERSION_PATCH=99
MYSQL_VERSION_EXTRA=
编译
make && make install
查看是否升级成功
mysql -V
mysql Ver 14.14 Distrib 5.7.99, for Linux (x86_64) using EditLine wrapper
从库起库
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/standby.cnf --ledir=/usr/local/mysql/bin &
执行升级脚本
/usr/local/mysql/bin/mysql_upgrade -uroot -p -S /data/mysql/standby/mysql.sock
Enter password:
Checking if update is needed.
Checking server version.
Running queries to upgrade MySQL server.
Checking system database.
mysql.columns_priv OK
mysql.db OK
mysql.engine_cost OK
mysql.event OK
mysql.func OK
mysql.general_log OK
mysql.gtid_executed OK
mysql.help_category OK
mysql.help_keyword OK
mysql.help_relation OK
mysql.help_topic OK
mysql.innodb_index_stats OK
mysql.innodb_table_stats OK
mysql.jzw OK
mysql.jzw2 OK
mysql.jzw3 OK
mysql.jzw4 OK
mysql.ndb_binlog_index OK
mysql.plugin OK
mysql.proc OK
mysql.procs_priv OK
mysql.proxies_priv OK
mysql.server_cost OK
mysql.servers OK
mysql.slave_master_info OK
mysql.slave_relay_log_info OK
mysql.slave_worker_info OK
mysql.slow_log OK
mysql.tables_priv OK
mysql.time_zone OK
mysql.time_zone_leap_second OK
mysql.time_zone_name OK
mysql.time_zone_transition OK
mysql.time_zone_transition_type OK
mysql.user OK
The sys schema is already up to date (version 1.5.1).
Checking databases.
sys.sys_config OK
Upgrade process completed successfully.
Checking if update is needed.
mysql> \s
--------------
mysql Ver 14.14 Distrib 5.7.99, for Linux (x86_64) using EditLine wrapper
Connection id: 5
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.7.99-log Source distribution
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8
Db characterset: utf8
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: mysql.sock
Uptime: 5 min 56 sec
Threads: 3 Questions: 2729 Slow queries: 0 Opens: 274 Flush tables: 1 Open tables: 39 Queries per second avg: 7.665
--------------
-------------------------------------------------------------------------------------------------------------------------------------------------------
主库
------------
停止主从复制
stop slave
全库备份
mysqldump -u root -p -S mysql.sock --all-databases>/data/mysql/primary/dump.sql
备份数据库global variables参数
mysql -uroot -p -Bse "show global variables" > /data/mysql/primary/before_var.cnf
备份my.cnf配置文件
cp primary.cnf primary.cnf.bak
备份basedir目录
mkdir -p /mysqlbackup/basedir_bak
cd /usr/local
tar -cvf mysql.tar mysql
mv *.tar /mysqlbackup/basedir_bak
mkdir -p /mysqlbackup/
mv mysql/ /mysqlbackup/
进入到bin目录关闭mysql服务
cd /mysqlbackup/mysql/bin
设置慢关闭
./mysql -uroot -p -e "SET GLOBAL innodb_fast_shutdown=0;" --socket=/data/mysql/primary/mysql.sock
查看是否设置为0
./mysql -uroot -p --socket=/data/mysql/primary/mysql.sock -e "show global variables like '%fast_shutdown%';"
关闭mysql数据库
./mysqladmin -uroot -p -S /data/mysql/primary/mysql.sock shutdown
记录binlog位置和pos信息
tail -300f /data/mysql/primary/elog/mysql.err
read up to log 'mysql-bin.000001', position 6451
解压软件包
cd /data/mysql
tar -xvf mysql-boost-5.7.21.tar.gz
编译5.7.21版本
cd mysql-5.7.21
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=all -DENABLED_LOCAL_INFILE=1 -DWITH_BOOST=/data/mysql/mysql-5.7.21/boost
修改版本
[root@rac02 mysql-5.7.21]# cat VERSION
MYSQL_VERSION_MAJOR=5
MYSQL_VERSION_MINOR=7
MYSQL_VERSION_PATCH=99
MYSQL_VERSION_EXTRA=
编译
make && make install
查看是否升级成功
mysql -V
mysql Ver 14.14 Distrib 5.7.99, for Linux (x86_64) using EditLine wrapper
从库起库
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/primary.cnf --ledir=/usr/local/mysql/bin &
执行升级脚本
/usr/local/mysql/bin/mysql_upgrade -uroot -p -S /data/mysql/primary/mysql.sock
Enter password:
Checking if update is needed.
Checking server version.
Running queries to upgrade MySQL server.
Checking system database.
mysql.columns_priv OK
mysql.db OK
mysql.engine_cost OK
mysql.event OK
mysql.func OK
mysql.general_log OK
mysql.gtid_executed OK
mysql.help_category OK
mysql.help_keyword OK
mysql.help_relation OK
mysql.help_topic OK
mysql.innodb_index_stats OK
mysql.innodb_table_stats OK
mysql.jzw OK
mysql.jzw2 OK
mysql.jzw3 OK
mysql.jzw4 OK
mysql.ndb_binlog_index OK
mysql.plugin OK
mysql.proc OK
mysql.procs_priv OK
mysql.proxies_priv OK
mysql.server_cost OK
mysql.servers OK
mysql.slave_master_info OK
mysql.slave_relay_log_info OK
mysql.slave_worker_info OK
mysql.slow_log OK
mysql.tables_priv OK
mysql.time_zone OK
mysql.time_zone_leap_second OK
mysql.time_zone_name OK
mysql.time_zone_transition OK
mysql.time_zone_transition_type OK
mysql.user OK
The sys schema is already up to date (version 1.5.1).
Checking databases.
sys.sys_config OK
Upgrade process completed successfully.
Checking if update is needed.
mysql> \s
--------------
mysql Ver 14.14 Distrib 5.7.99, for Linux (x86_64) using EditLine wrapper
Connection id: 5
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.7.99-log Source distribution
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8
Db characterset: utf8
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: mysql.sock
Uptime: 5 min 56 sec
Threads: 3 Questions: 2729 Slow queries: 0 Opens: 274 Flush tables: 1 Open tables: 39 Queries per second avg: 7.665
--------------
-------------------------------------------------------------------------------------------------------------------------------------------------------
升级完成后恢复主主复制
先做主从复制
------------------------
从库
stop slave;
start slave;
show slave status\G
如果有报错SQL，就要去修正，或者用set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;跳过
反向复制
-----------------------
主库
stop slave;
start slave;
show slave status\G
如果有报错SQL，就要去修正，或者用set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;跳过
同步错误处理
发现mysql slave服务器经常因为一些特殊字符或者符号产生的更新语句报错，整个同步也会因此而卡在那，最初的办法只是手动去出错的机器执行下面三条SQL语句，跳过错误即可。
mysql>slave stop;
mysql>set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
mysql>slave start;