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xbackup.sh - Wrapper for Percona Xtrabackup ------------------------------------------- REQUIREMENTS ------------ - Percona XtraBackup - MySQL/compatible server (to backup) - MySQL/compatible server (to store backup metadata) CONFIGURATION ------------- APPLY_LOG When set to 1, a copy of your backups will be maintained inside WORK_DIR/bkps where they will be prepared with "--apply-log --redo-only". This process is applied for the full backup set starting with the most recent full backup and incremental backups if any. The resulting folder is prefixed with 'P_'. See http://www.percona.com/doc/percona-xtrabackup/2.1/howtos/recipes_ibkx_inc.html STOR_CMP Whether to compress your backups, although XtraBackup supports its own compression the script only compresses using good ol' tarball for now. COPY_BINLOGS Whether to maintain a copy of your binary logs as well. The number of binary logs maintained depends on the oldest backup you have and the newest such that you should be able to prepare your oldest backup and apply your binary logs up to now. The bianry logs are stored inside STOR_DIR/bnlg WORK_DIR If you have enabled APPLY_LOG and/or STOR_CMP, certain backup copies will be kept here. STOR_DIR Where your actual raw (optionally compressed) backups will be stored. MY Must be set to the command line needed to access the metadata server (i.e. "mysql -uuser -ppass -hhost schema-name") The following table must exist in the schema specified in the MY variable: CREATE TABLE backups ( id int(10) unsigned NOT NULL auto_increment, started_at timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP, ends_at timestamp NOT NULL default '0000-00-00 00:00:00', size varchar(15) default NULL, path varchar(120) default NULL, type enum('full','incr') NOT NULL default 'full', incrbase timestamp NOT NULL default '0000-00-00 00:00:00', weekno tinyint(3) unsigned NOT NULL default '0', baseid int(10) unsigned NOT NULL default '0', PRIMARY KEY (`id`) ) ENGINE=InnoDB; USAGE EXAMPLES -------------- Create a full backup with: bash xbackup.sh -t full Create an incremental backup with: bash xbackup.sh -t incr In case of a previous error and lock file was not removed, you can add -f to force the backup and remove the lock file afterwards. Note that you have to be sure you have already investigated the cause of the previous failure. bash xbackup.sh -t full -f