mysql5.6.20二進制安裝部署文檔
mysql5.6.20二進制安裝部署文檔
一、業務需求：
單臺服務器線上運行著mysql5.5.48
現在是不影響線上的業務，不停止線上的mysql5.5數據庫來部署另外一個mysql5.6.20的實例
二、安裝部署過程：
2.1安裝部署過程註意事項：
在初始化mysql數據庫時，是會尋找my.cnf配置文件的，是有順序的，默認的順序是：
[[email protected] ~]# mysql --help | grep ‘Default options‘ -A 1
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
查看當前mysql運行采用的是哪個配置文件：
[[email protected] ~]# cat /proc/$(pidof mysqld)/cmdline | tr ‘\0‘ ‘\n‘
/usr/local/mysql5.6/bin/mysqld
--defaults-file=/usr/local/mysql5.6/my.cnf
--basedir=/usr/local/mysql5.6
--datadir=/data/mysql3307/data
--plugin-dir=/usr/local/mysql5.6/lib/plugin
--user=mysql
--log-error=/data/mysql3307/log/error.log
--open-files-limit=65535
--pid-file=/data/mysql3307/log/git-server.pid
--socket=/tmp/mysql3307.sock
--port=3307
提示:上面的命令只適合查看單實例mysql
參考：https://www.electrictoolbox.com/mysql-my-cnf/
https://www.psce.com/en/blog/2012/04/01/how-to-find-mysql-configuration-file/
2.2開始部署：
註意：要把現在線上運行的mysql5.5.48采用的my.cnf配置文件mv為另外一個名稱，否則在初始化mysql5.6的時候會報錯。原因是：初始化mysql5.6時，默認是先尋找/etc/my.cnf這個文件的。但是這個文件正在被mysql5.5.48在采用，所以要把這個文件改名，然後把mysql5.6.20的my.cnf的配置文件移到/usr/local/mysql5.6/下面，然後在初始化mysql5.6.20
mv /etc/my.cnf /etc/my.cnf.bak
如果不把線上mysql5.5.48的my.cnf配置文件改名的話，初始化mysql5.6.20會報如下錯誤：
[[email protected] scripts]# ./mysql_install_db --datadir=/data/mysql3307/data --basedir=/usr/local/mysql5.6 --user=mysql --explicit_defaults_for_timestamp
Installing MySQL system tables...2017-08-27 14:04:28 0 [Note] Ignoring --secure-file-priv value as server is running with --bootstrap.
2017-08-27 14:04:28 0 [Note] /usr/local/mysql5.6/bin/mysqld (mysqld 5.6.36-log) starting as process 7379 ...
2017-08-27 14:04:28 7379 [Note] InnoDB: Using atomics to ref count buffer pool pages
2017-08-27 14:04:28 7379 [Note] InnoDB: The InnoDB memory heap is disabled
2017-08-27 14:04:28 7379 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-08-27 14:04:28 7379 [Note] InnoDB: Memory barrier is not used
2017-08-27 14:04:28 7379 [Note] InnoDB: Compressed tables use zlib 1.2.3
2017-08-27 14:04:28 7379 [Note] InnoDB: Using Linux native AIO
2017-08-27 14:04:28 7379 [Note] InnoDB: Using CPU crc32 instructions
2017-08-27 14:04:28 7379 [Note] InnoDB: Initializing buffer pool, size = 1.0G
2017-08-27 14:04:28 7379 [Note] InnoDB: Completed initialization of buffer pool
2017-08-27 14:04:28 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:28 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
2017-08-27 14:04:28 7379 [Note] InnoDB: Retrying to lock the first data file
2017-08-27 14:04:29 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:29 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
2017-08-27 14:04:30 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:30 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
2017-08-27 14:04:31 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:31 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
2017-08-27 14:04:32 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:32 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
2017-08-27 14:04:33 7379 [ERROR] InnoDB: Unable to lock /usr/local/mysql/var/ibdata1, error: 11
2017-08-27 14:04:33 7379 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
所以要先把線上的mysql5.5.48的my.cnf配置文件改名(切記此期間不要對mysql5.5.48有任何的修改啟動服務操作)，等mysql5.6.20成功部署好後記得再把改名後的mysql5.5.48的配置文件改回原來的/etc/my.cnf
Mysql二進制包下載地址
http://ftp.ntu.edu.tw/MySQL/Downloads/MySQL-5.6/
useradd mysql
mkdir /data1/mysql5.6/{data,var} -p
chown -R mysql.mysql /data1/mysql5.6/
tar xf /tmp/mysql-5.6.20-linux-glibc2.5-x86_64.tar.gz -C /usr/local/
cd /usr/local/
mv mysql-5.6.20-linux-glibc2.5-x86_64 mysql5.6
chown -R mysql.mysql /usr/local/mysql5.6
cp my.cnf(mysql5.6.20的配置文件) /usr/local/mysql5.6/
cd /usr/local/mysql5.6/scripts
[[email protected] scripts]# ./mysql_install_db --datadir=/data/mysql5.6/data --basedir=/usr/local/mysql5.6 --user=mysql --explicit_defaults_for_timestamp
Installing MySQL system tables.../usr/local/mysql/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
解決：
yum -y install libaio-devel 或者yum install libaio*
./mysql_install_db --datadir=/data1/mysql5.6/data --basedir=/usr/local/mysql5.6 --user=mysql --explicit_defaults_for_timestamp
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql5.6
sed -i ‘s#/usr/local/mysql5.6#/usr/local/mysql#g‘ /etc/init.d/mysql5.6
chkconfig mysql5.6 on
echo "export PATH=$PATH:/usr/local/mysql5.6/bin" > /etc/profile.d/mysql.sh
source /etc/profile
2.3啟動mysql5.6.20設置密碼：
第一種方式啟動mysql
/etc/init.d/mysql5.6 start
第二種方式啟動mysql
mysqld_safe --defaults-file=/usr/local/mysql5.6/my.cnf &
ps -ef|grep mysql
給mysql5.6.20設置密碼：
/usr/local/mysql5.6/bin/mysqladmin -u root password ‘Zydfg55726‘ -S /tmp/mysql3307.sock
mysql -uroot -p -S /tmp/mysql3307.sock
平滑關閉mysql5.6.20:
mysqladmin -uroot -p‘Zydfg55726‘ -S /tmp/mysql3307.sock shutdown
/etc/init.d/mysql5.6 stop
2.4 mysql5.6.20的my.cnf配置文件：
[[email protected] ~]# cat /etc/my.cnf
[client]
#password = your_password
port = 3307
socket = /tmp/mysql3307.sock
[mysqld]
port = 3307
socket = /tmp/mysql3307.sock
datadir = /data1/mysql5.6/data
skip-external-locking
key_buffer_size = 32M
max_allowed_packet = 50M
table_open_cache = 1024
sort_buffer_size = 4M
net_buffer_length = 8K
read_buffer_size = 4M
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 64M
thread_cache_size = 128
#query_cache_size = 128M
tmp_table_size = 64M
max_join_size=3G
#skip-networking
skip-name-resolve
max_connections = 500
max_connect_errors = 1000
open_files_limit = 65535
#log-bin=mysql-bin
#binlog_format=row
server-id = 1
#expire_logs_days = 1
#default_storage_engine = InnoDB
innodb_data_home_dir = /data1/mysql5.6/var
innodb_data_file_path = ibdata1:300M:autoextend
innodb_log_group_home_dir = /data1/mysql5.6/var
innodb_buffer_pool_size = 1024M
innodb_additional_mem_pool_size = 2M
innodb_log_file_size = 256M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 0
innodb_lock_wait_timeout = 50
#innodb_force_recovery = 2
[mysqldump]
quick
max_allowed_packet = 256M
[mysql]
no-auto-rehash
[myisamchk]
key_buffer_size = 16M
sort_buffer_size = 4M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
到此單臺服務器上開啟另外一個實例mysql5.6.20成功完成。而且不會對線上mysql5.5.48的業務產生任何影響的
本文出自 “10931853” 博客，請務必保留此出處http://wujianwei.blog.51cto.com/10931853/1959711
mysql5.6.20二進制安裝部署文檔