README.md

MySQL backup script

Feature rich MySQL / MariaDB backup script. Scripts

• mysql_backup.sh :: backuping mysql databases in single dump.
• mysql_db_dump.sh :: dumping single database

Installation

• git clone https://github.com/1sept/mysql_backup.git
• set database user and password in .my.cnf located in user homedir.

Example

Usage: ./mysql_backup.sh -d /backup/dir/ -n daily [-c 10 -s -z -e [email protected]] Usage: ./mysql_db_dump.sh databse1 [database2 database3 database4 ...]

mysql_bakcup Options

-d , --dir
backup directory
-n, --name
backup name
-c, --copies
number of copies to store (default 10)
-e, --email
email to send notifications
-s, --single-transaction
this option sets the transaction isolation mode to REPEATABLE READ and sends a START TRANSACTION SQL statement to the server before dumping data. It is useful only with transactional tables such as InnoDB, because then it dumps the consistent state of the database at the time when START TRANSACTION was issued without blocking any applications.
-l, --lock-all-tables
lock all tables across all databases. This is achieved by acquiring a global read lock for the duration of the whole dump. This option automatically turns off --single-transaction and --lock-tables.
WARNING!!! This will block all applications.
-z, --gzip
compress dump using gzip
-x, --xz
compress dump using xz
--xz-threads
number of worker threads to use by xz. 0 - use all CPU. (default: 2)
-m, --master
set master data in dump
-q, --quiet
--pid-file
set pid-file (default: /var/run/mysql_backup.sh.pid) -h, --help

Setup script in crontab

20 01 * * * root /bin/sh /path/to/mysql_backup.sh -d /backup/dir/ -n daily -c 7 -e [email protected] -x --xz-threads 6 -q -m

.my.cnf example

    [mysqldump]
    user = mysqldump
    password = secret_passwd_here
    host = localhost
    max-allowed-packet=256MB