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Index of files created by Percona XtraBackup
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    • Home
      • About Percona XtraBackup
      • How Percona XtraBackup works
      • Understand version numbers
      • Install Percona XtraBackup 8.0
      • Use an APT repo to install Percona XtraBackup
      • Use a YUM repo to install Percona XtraBackup
      • Use DEB or RPM downloaded packages to install Percona XtraBackup
      • Install Percona XtraBackup from a Binary Tarball
      • Compile and install Percona XtraBackup from source code
      • What’s in the packages
      • Uninstall Percona XtraBackup
      • Run Percona XtraBackup in a Docker container
      • Implementation details
      • Connection and privileges needed
      • Configure xtrabackup
      • Server version and backup version comparison
      • xtrabackup exit codes
      • The backup cycle - full backups
      • Incremental backup
      • Compressed backup
      • Partial backups
      • Percona XtraBackup user manual
      • Throttling backups
      • Encrypted InnoDB tablespace backups
      • Encrypt backups
      • LRU dump backup
      • Point-in-time recovery
      • Smart memory estimation
      • Work with binary logs
      • Improved log statements
      • Work with SELinux
      • Work with AppArmor
      • Enable the server to communicate via TCP/IP
      • Install and configure an SSH server
      • Analyze table statistics
      • FLUSH TABLES WITH READ LOCK option
      • lock-ddl-per-table option improvements
      • Take an incremental backup using page tracking
      • The xbcloud binary
      • Use the xbcloud binary with Swift
      • Use xbcloud Binary with Amazon S3
      • Use the xbcloud binary with MinIO
      • Use the xbcloud with Google Cloud Storage
      • Exponential backoff
      • Use the xbcloud binary with Microsoft Azure Cloud Storage
      • How-tos and recipes
      • Release notes index
      • Percona XtraBackup 8.0.30-23 (2022-11-14)
      • Percona XtraBackup 8.0.29-22 (2022-07-19)
      • Percona XtraBackup 8.0.28-21 (2022-05-25)
      • Percona XtraBackup 8.0.28-20
      • Percona XtraBackup 8.0.27-19
      • Percona XtraBackup 8.0.26-18.0
      • Percona XtraBackup 8.0.25-17.0
      • Percona XtraBackup 8.0.23-16.0
      • Percona XtraBackup 8.0.22-15.0
      • Percona XtraBackup 8.0.14
      • Percona XtraBackup 8.0.13
      • Percona XtraBackup 8.0.12
      • Percona XtraBackup 8.0.11
      • Percona XtraBackup 8.0.10
      • Percona XtraBackup 8.0.9
      • Percona XtraBackup 8.0.8
      • Percona XtraBackup 8.0.7
      • Percona XtraBackup 8.0.6
      • Percona XtraBackup 8.0.5
      • Percona XtraBackup 8.0.4
      • Percona XtraBackup 8.0-3-rc1
      • Error Message: Found tables with row versions due to INSTANT ADD/DROP columns
      • The xtrabackup option reference
      • The xbcrypt binary
      • The xbstream binary
      • Frequently asked questions
      • Glossary
      • Index of files created by Percona XtraBackup
      • Trademark policy
      • Copyright and licensing information
      • Version checking

    Index of files created by Percona XtraBackup¶

    • Information related to the backup and the server
    File Name Description
    backup-my.cnf This file contains information to start the mini instance of InnoDB during the --prepare. This **not** a backup of the original my.cnf. The InnoDB configuration is read from the file backup-my.cnf created by xtrabackup when the backup was made. The --prepare uses InnoDB configuration from backup-my.cnf by default, or from --defaults-file, if specified. The InnoDB's configuration in this context means server variables that affect dataformat, i.e. innodb_page_size option, innodb_log_block_size, etc. Location-related variables, like innodb_log_group_home_dir or innodb_data_file_path are always ignored by --prepare, so preparing a backup always works with data files from the back directory, rather than any external ones.
    xtrabackup_checkpoints

    The type of the backup (for example, full or incremental), its state (for example, prepared) and the LSN range contained in it. This information is used for incremental backups. Example of the xtrabackup_checkpoints after taking a full backup:

    backup_type = full-backuped
    from lsn= 0
    to_lsn = 15188961605
    last_lsn = 15188961605
    
    Example of the xtrabackup_checkpoints after taking an incremental backup:

    backup_type = incremental
    from_lsn = 15188961605
    to_lsn = 15189350111
    last_lsn = 15189350111
    
    xtrabackup_binlog_info

    The binary log file used by the server and its position at the moment of the backup. A result of the following query:

    SELECT server_uuid, local, replication, storage_engines FROM performance_schema.log_status;
    
    xtrabackup_binlog The xtrabackup binary used in the process.
    xtrabackup_logfile Contains data needed for running the: --prepare. > The bigger this file is the --prepare process > will take longer to finish.
    <table_name>.delta.meta

    This file is going to be created when performing the incremental backup. > It contains the per-table delta metadata: page size, size of compressed > page (if the value is 0 it means the tablespace isn’t compressed) and > space id. Example of this file:

    page_size = 16384
    zip_size = 0
    space_id = 0
    
    • Information related to the replication environment (if using the--slave-info option):

      xtrabackup_slave_info

      The CHANGE MASTER statement needed for setting up a replica.

    • Information related to the Galera and Percona XtraDB Cluster (if using the --galera-info option):

      xtrabackup_galera_info

      Contains the values of wsrep_local_state_uuid andwsrep_last_committed status variables

    Contact us

    For free technical help, visit the Percona Community Forum.

    To report bugs or submit feature requests, open a JIRA ticket.

    For paid support and managed or consulting services , contact Percona Sales.


    Last update: 2022-12-12
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