November 19

MySQL: migration

 - This is an example of how I did it.  It is not exhaustive, but close.

On the old server:
Dump the needed Databases:
  mysqldump -u root -p dbname1 > dbname1.dump
  mysqldump -u root -p dbname2 > dbname2.dump
  mysqldump -u root -p dbname3 > dbname3.dump

On the new server:

Download mysql from Oracle and unzip it:
unzip p26976024_570_Linux-x86-64.zip 

tar -zxvf mysql-commercial-5.7.20-1.1.el7.x86_64.repo.tar.gz

cd mysql-5.7/

cd 5.7.20/

If installing on Red Hat check to make certain mariadb is uninstalled:
yum remove mariadb*

Install the mysql rpms:
rpm -ivh mysql-commercial-common-5.7.20-1.1.el7.x86_64.rpm 
rpm -ivh mysql-commercial-libs-*
rpm -ivh mysql-commercial-libs-5.7.20-1.1.el7.x86_64.rpm 
rpm -ivh mysql-commercial-libs-compat-5.7.20-1.1.el7.x86_64.rpm 
rpm -ivh mysql-commercial-client-5.7.20-1.1.el7.x86_64.rpm 
rpm -ivh mysql-commercial-server-5.7.20-1.1.el7.x86_64.rpm 

systemctl start mysqld.service
systemctl status mysqld.service 

grep 'temporary password' /var/log/mysqld.log

systemctl enable mysqld.service

mysql -u root -p

systemctl restart mysqld

nano /etc/my.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

innodb_data_file_path = ibdata1:10M:autoextend

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

validate_password_policy=LOW

#configurations for agileapps
sql-mode="PIPES_AS_CONCAT,ANSI_QUOTES"
character-set-server=utf8
collation-server=utf8_general_ci
max_allowed_packet = 8M


mysql -u root -p

mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql

systemctl restart mysqld
systemctl status firewalld.service 
systemctl disable firewalld.service 
systemctl stop firewalld.service 

hostnamectl set-hostname servername

reboot

mysql -u root -p
mysql> create database dbname1;
mysql> use dbname1;
mysql> source dbname1.dump;
mysql> create database dbname2;
mysql> use dbname2;
mysql> source dbname2.dump;mysql>
create database dbname3;
mysql> use dbname3;
mysql> source dbname3.dump;


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Posted November 19, 2021 by Timothy Conrad in category "Databases

About the Author

If I were to describe myself with one word it would be, creative. I am interested in almost everything which keeps me rather busy. Here you will find some of my technical musings. PGP: 4CB8 91EB 0C0A A530 3BE9 6D76 B076 96F1 6135 0A1B