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Make a copy of mysql table

rick — Thu, 22 Oct 2009 01:55:23 +0000

One SQL to make a copy of existing MySQL table ( table structure and records )

1	CREATE TABLE clone_table SELECT * FROM original_table WHERE 1

Backup MySQL databases to remote server using mysql-zrm

rick — Sun, 30 Nov 2008 04:45:17 +0000

Recently I use mysql-zrm to backup a large databases from a client server. I can backup all databases or a set of database or maybe some of tables with one line linux command. Pretty easy to use.

You may imagine that mysql-zrm is a strong management tool of mysql, mysqldump and mysqlhotcopy. The key benifits for me are : I can backup all databases at once with my databases are automatically created if a new client comes; mysql-zrm is able to save compressed data to different folder, so I can keep saved data up to seven days (you may do it one month or maybe one year); It also has a scheduler to do your task every certain time you want.

Installation:

1. login to your backup server

2. Download rpm from http://www.zmanda.com/download-zrm.php

3. If you don’t have Perl installed, run ” yum install perl ”

4. run ” rpm -ivh MySQL-zrm-2.0-1.noarch.rpm ”

5. “ vi /etc/mysql-zrm/mysql-zrm.conf ” update following parameters in file

backup-mode=logical [ ideally raw for myisam engine and logical for innodb. but I recommend using logical for default. Because when I use raw for default value, and if there is table with innodb engine exist, zrm will prompt me password for mysql@(server_ip) which have no idea about linux mysql user login ]

destination=/home/mybackup_dir [ specify where backup files will be stored]

Start backup:

mysql-zrm –action backup –host xxx.xxx.xxx.xxx –user aabb –password ccdd –backup-set abcd

where
–host is remote server IP for MySQL
–user is remote MySQL server user login
–password is remote MySQL server user login password
–backup-set is backup folder name

Result:

after running the command, you will get backup file in the path look like this

/home/mybackup_dir/abcd/20081128195236

Restore database to local server:

/usr/bin/mysql-zrm-restore –user=1122 –password=2233 –source-directory=/home/mybackup_dir/abcd/20081128195236
check out your backup server MySQL database.

Check Linux Versions – common commands part1

Nelson — Tue, 04 Mar 2008 16:32:56 +0000

Check Linux Kernel version:

uname -a

Check Linux version

cat /proc/version

Check Redhat based Linux version

cat /etc/redhat-release

Check PHP version on Linux server

php -v

Check mysql version on linux server

mysql -V

Check apache version on linux server

httpd -v

Install MySQL Community Server 5.0.45 Without Installer on Windows Vista

Nelson — Thu, 11 Oct 2007 21:00:44 +0000

Download the zip file from here.
Unzip it to your d: drive. Here’s what you should get after unzipping: d:\mysql-noinstall-5.0.45-win32. Rename this folder to mysql5045. (d:\mysql5045)
Open folder d:\mysql5045. Copy my-small.ini and rename the copied file to my.ini. Open my.ini using notepad. Under line “[mysqld]“, enter the following lines:basedir=D:/mysql5045
datadir=D:/mysql5045/data
Run your command prompt as administrator. And enter folder d:\mysql5045\bin
Type mysqld-nt.exe –install mysql5045 –defaults-file=d:\mysql5045\my.ini
Type net start mysql5045 in command line. If you see the following, mysql 5045 is installed and running!The mysql5045 service is starting.
The mysql5045 service was started successfully.
IMPORTANT! type mysqladmin -u root password “your-new-password”, to set a password for your root account. The default install will leave no password required for your root account.