Percona XtraBackup - an open source backup solution for all versions of Percona Server for MySQL and MySQL that performs online non-blocking, tightly compressed, highly secure full backups on transactional systems so that applications remain fully available during planned maintenance windows. If the InnoDB data or log files are not stored in the same directory, you must specify their location. 34. Percona Server for MySQL 8. Jul 10, 2023 · Create a partial backup. 0 from the official Percona software repositories using the appropriate package manager for your system: Use an APT repo to install Percona XtraBackup. Exponential backoff increases the chances for the completion of a backup or a restore operation. Options ¶ The following are the options, environment variables, and descriptions for uploading a backup to Azure using the REST API. Percona XtraBackup (PXB) is a 100% open source backup solution for all versions of Percona Server for MySQL and MySQL® that performs online non-blocking, tightly compressed, highly secure full backups on transactional systems. 0-1 (2023-11-02) Quickstart Guide Quickstart Guide Quickstart Guide for Percona XtraBackup 8. This will store the backup at /data/backups/. 3, but the destination does. Percona Xtrabackup can also prepare the backup files for restoration, apply incremental Oct 26, 2023 · Configure xtrabackup. conf files for each version of PS and XtraBackup; Pass different combination of options to PS start command and initialize PS servers each time with different options Jun 21, 2024 · To make a compressed backup, use the --compress option along with the --backup and --target-dir options. The prepare step is very simple to use: you simply run xtrabackup with the --prepare option and tell it which directory to prepare, for example, to prepare the previously taken backup run: $ xtrabackup --prepare --target-dir = /data/backups/. See Percona XtraBackup Overview: Compatibility with MariaDB for more information. Uses xtrabackup with the --backup flag for a full backup. If the archiving directory is not configured in MySQL, Percona XtraBackup creates a temporary directory for the archive file. Feb 9, 2024 · Usage: --decrypt=name. This option is useful for setting up a new replica for this source. 2. Note that the binary log contains the operations that modified the database from a point in the past. Find installation guides, backup management, supported versions, and limitations. Percona XtraBackup enables MySQL backups without blocking user queries, making it ideal for companies with large data sets and mission-critical applications that cannot tolerate long periods of downtime. --keyring-file-data option (and also xtrabackup --server-id option, needed for MySQL prior to 5. 0 are available in the Percona XtraBackup 8. It copies your InnoDB data files, which results in data that is internally inconsistent; but then it performs crash recovery on the files to make them a consistent, usable database again. Nov 2, 2023 · Install from a binary tarball. 0-1 (2024-03-27) Get expert help¶. mysqldump connects to mysql and run SELECT * to get access to the data, while xtrabackup physically accesses the files on disk. An increase in base version resets the minor build version to 0. The tables you back up must be in separate tablespaces, as a result of being created or altered after you enabled the innodb_file_per_table option on the server. Open source tool for performing hot backups of MariaDB, MySQL and Percona Server databases. Increasing the size of the redo logs, so they are not wrapped while mysql is working. If you want to skip writing the username and password every time you want to access MySQL , you can set it up in . Running OPTIMIZE TABLE on affected tables will bring them back to a safe state. Currently, the following algorithms are supported: AES128 , AES192 and AES256. In order to keep it simple, here is a list of the things you Jul 11, 2024 · Configure xtrabackup. Task. Jan 4, 2023 · The Percona XtraBackup tools provide a method of performing a hot backup of your MySQL data while the system is running. If the target directory does not exist, xtrabackup creates it. mysql> select count(*) from employees. supports all features and syntax as 2. The following example downloads the a tarball: The output Jul 11, 2024 · Percona XtraBackup supports encrypting and decrypting local and streaming backups with the upstream option, adding another protection layer. Nov 1, 2023 · Physical (Percona XtraBackup, RDS/LVM Snapshots, MySQL Enterprise Backup), and also you can use cp or rsync command lines to copy the datadir as long as mysql is down/stopped. 3 How Percona XtraBackup works How Percona XtraBackup works About Percona XtraBackup Percona XtraBackup features FIFO data sink¶. During the backup process, you should see a lot of output showing the data files being copied, as well as the log file Oct 6, 2023 · Percona XtraBackup has implemented --decompress option that can be used to decompress the backup. Percona XtraBackup supports the following keyring components and plugins: These components are stored in the plugin directory. In this case, xbcloud will probe. You can use the environment variable or command Percona XtraBackup is based on InnoDB’s crash-recovery functionality. Have anyone from your internal team has tried this before and verified that it works? Yes, this has been tested and works: Jul 16, 2024 · Percona XtraBackup (PXB) is a 100% open source backup solution for all versions of Percona Server for MySQL and MySQL® that performs online non-blocking, tightly compressed, highly secure full backups on transactional systems. This works because InnoDB maintains a redo log, also called the transaction log. 2 version did, but is now. Support for encrypted InnoDB tablespace backups with keyring_file has been implemented in Percona XtraBackup 2. If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional support and services. It takes some time to do this, so if the files are changing, then they reflect the state of the database at different points in time. Here is a way to get a long-running query with the employees database: 1. Percona Toolkit for MySQL - a collection of advanced Aug 21, 2023 · To create an incremental backup with page tracking, Percona XtraBackup uses the MySQL mysqlbackup component. Percona XtraBackup is based on how [ crash recovery] works. 1. Restoring partial backups should be done by importing the tables. Percona XtraBackup supports storing the backups history on the server. Backup history information will be stored in the PERCONA_SCHEMA. The reason for opening the files in read-write mode is that xtrabackup uses the embedded InnoDB libraries to open and read the files, and InnoDB opens Apr 10, 2020 · It is easy to backup and restore a table or a database using Percona XtraBackup, by using just a few commands. As of Percona XtraBackup 8. If the majority of pages have not been modified Jul 11, 2024 · Create an incremental backup. xbstream. Offered free as an open source solution, it drives down backup costs while providing unique features for MySQL backups. Get an open source backup solution for all versions of Percona Server for MySQL and MySQL that performs online non-blocking and highly secure full backups on transactional systems so that applications remain fully available during If your backup is from a server with binary logging enabled, xtrabackup creates a file named xtrabackup_binlog_info in the target directory. This file contains a line showing the to_lsn, which is the database’s LSN at the end of the backup. Percona XtraBackup does not automatically remove the compressed files. For example, a chunk upload or download may fail if you have an unstable network connection or other network issues. That was required to overcome some limitations of traditional archive formats such as tar, cpio and others which did not allow streaming dynamically generated files, for To start the backup process run: $ xtrabackup --backup --target-dir = /data/backups/. salaries; Now let’s run a backup which will automatically aborts if it cannot take the global lock after waiting for some time: 1. The time taken for a new node to join the PXC Cluster is also significantly reduced as the SST process will complete faster. Jun 21, 2024 · Percona XtraBackup is an open-source command-line utility. You can start a replica server with this backup and issue the statement saved in the xtrabackup_slave_info file. 3 How Percona XtraBackup works How Percona XtraBackup works About Percona XtraBackup Percona XtraBackup features Percona XtraBackup features partial backups, which means that you may backup only some specific tables or databases. Jul 11, 2024 · Percona XtraBackup supports storing the backups history on the server. innobackupex still. All described in this section has no effect when backup locks are used. 34 and later. 4. 0 overview. The supported values are: AES128, AES192, and AES256. Specifically, Percona XtraBackup 8. The xtrabackup binary reads the [mysqld] and [xtrabackup] sections from any configuration files, in that order. cnf file. --parallel can be used with --decompress option to decompress multiple files simultaneously. Specifies that xbstream automatically decrypts encrypted files when extracting input stream. The default storage class depends on the provider. Mariabackup is the recommended backup method to use instead of Percona XtraBackup. Download the binary tarballs from the Linux - Generic section on Percona Product Downloads. This following script defines the server details like hostname, username, password, data directory, and backup directory. You can redirect this output into a file in the target directory of the backup. Each one will be reading a chunk of data from a specific file. The write speed is too slow which usually is a sign of IO congestion or network congestion. It connects to the database and retrieves information about it, and executes commands that are required during the process. By using the xbstream in streaming backups, you can additionally speed up the compression process with the --compress-threads option. More details of this procedure can be found in How to setup a replica for replication in 6 simple steps with Percona XtraBackup. If you don’t want to save your backup, you can use the --move-back option which will move the backed up data to the datadir. The option does not affect long-running queries. 35. The --compress option uses either the quicklz , lz4 , or ZSTD compression algorithm to compress all output data. XTRABACKUP_HISTORY table. Maintain fully available applications during planned maintenance windows with Percona XtraBackup. Generates a timestamp with the date command for the full backup filename. This diagram displays the process of streaming a backup to object storage utilizing the current STDOUT datasink: XtraBackup spawns multiple copy threads. GLACIER. To support simultaneous compression and streaming, a new custom streaming format called xbstream was introduced to Percona XtraBackup in addition to the TAR format. a compiled *C* binary that provides functionality to Percona XtraBackup. Jun 21, 2024 · Percona XtraBackup 8. Percona XtraBackup is not supported in MariaDB. Percona Xtrabackup is a tool that allows you to create backups of MySQL or MariaDB databases. Percona XtraBackup copies the InnoDB data files, which results in data that is internally inconsistent; then the prepare phase performs crash recovery on the files to make a consistent, usable database again. 2 by implementing xtrabackup. 0-1 (2023-12-11) Percona XtraBackup 8. 0 documentation. To apply the first incremental backup to the full backup, run the following command: $ xtrabackup --prepare --apply-log-only --target-dir = /data/backups/base \. Specify the S3 storage class. 34-29, Percona XtraBackup supports backing up databases compatible with MySQL 8. Mariabackup is a fork of Percona XtraBackup designed to . Percona XtraBackup User Manual. 26-18. It was designed to back up XtraDB/InnoDB tables but can also back up other storage engines. 25 Linux (x86_64) (revision id: d27028b) Jun 12, 2024 · To start the backup process run: $ xtrabackup --backup --target-dir = /data/backups/. The variable is only used in place of the --encrypt_key=name option. 24 in the xbcloud binary. Install Percona XtraBackup 8. employees,employees. Install Percona XtraBackup 2. 33-28 and lower versions. You can combine this with the –tables option to limit the files to examine. You can perform many incremental backups between each full backup, so you can set up a backup process such as a full backup once a week and an incremental backup every day, or full backups every day and incremental backups every hour. The --prepare phase has the following operations: As a May 30, 2024 · Percona XtraBackup 8. 7 from github. Jul 11, 2024 · ZRM with \Percona XtraBackup provides resource utilization management by providing throttling based on the number of IO operations per second. The project maintains its own repositories that we can add to our MySQL server to gain access to the packages. To make an incremental backup, begin with a full backup as usual. cnf file that are needed to restore the data and log files. Encryption Enabled (Recommended): Jun 12, 2024 · Backup needs to be prepared before it can be restored. 1. Oct 11, 2013 · Aborting the backup if long queries are running. PXC helps enterprises minimize unexpected downtime and data loss, reduce costs, and improve performance and scalability of your database environments supporting your critical business Learn how to use Percona XtraBackup, an open source hot backup utility for MySQL-based servers, to take backups of InnoDB, XtraDB, MyISAM, and MyRocks tables. This feature is available in Percona Server for MySQL 5. This file contains the binary log file name and position of the exact point when the backup was taken. 0, xtrabackup no longer creates the xtrabackup_binlog_pos_innodb file. 34-29 added the redo-log-arch-dir option. When using --compress=quicklz or --compress , the resulting files have the qpress archive format. Minor build version - an internal number that denotes the version of the software. e. Warning. Do not copy back the prepared backup. innobackupex is the symlink for *xtrabackup*. Daily Full Backup Script. Data transferred during SST won’t be encrypted. 6 and 5. To create an incremental backup with page tracking, Percona XtraBackup uses the MySQL mysqlbackup component. You can specify either --encrypt-key or --encrypt-key-file to provide the encryption key, but do not use both options. Find out the latest release notes, features, support options, and how to contact Percona for help. The name options are the following: STANDARD. Stream the backup into a compressed archive named backup. Jul 11, 2024 · Point-in-time recovery. Percona XtraBackup performs online non-blocking, tightly compressed, highly Jan 8, 2024 · Percona XtraBackup 8. You also must specify the --target-dir option, which is where the backup is stored. 13). To do this, you should use the –stats option. Apr 4, 2024 · The xtrabackup binary can analyze InnoDB data files in read-only mode to give statistics about them. There are three ways to create partial backups: matching the tables names with a regular expression. $ xtrabackup --backup --stream=xbstream --target-dir=. 0-1 define the following information: Base version - the leftmost numbers indicate the MySQL 8. 3 and 2. Jun 21, 2024 · In this case, xbcloud will probe. , innobackupex will not be able to backup Oct 10, 2023 · Just FYI, mysqldump works fine but percona xtrabackup doesn’t. About Percona XtraBackup. Jul 11, 2024 · To ensure consistent backups, use the FLUSH TABLES WITH READ LOCK option before taking a non-InnoDB file backup. Build PS servers in debug mode. 3. providing a list of databases. Nov 10, 2022 · This option instructs xtrabackup to encrypt backup copies of InnoDB data files using the algorithm specified in the ENCRYPTION_ALGORITHM. xtrabackup supports taking partial backups when the innodb_file_per_table option is enabled. You can have almost real-time backups in 6 simple steps by setting up a replication environment with Percona XtraBackup. With Percona XtraBackup, you can achieve the following benefits: See the compatibility matrix in Percona Software and Platform Lifecycle to find out which versions of For paid support and managed or consulting services , contact Percona Sales. Percona XtraBackup copies all the MyRocks files each time it takes a backup. Percona XtraBackup is the world’s only open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. Command-line tools have limited interaction with the background operations and the logs provide the progress of an operation or more information about errors. With the FIFO data sink feature, users with a streaming capacity of 10Gbps (typically on a Local Area Network (LAN)) can benefit from faster backups by streaming data in parallel to an object storage. The improvement will depend on the number of tablespace files (IBDs) in the backup directory. Install Percona Jul 11, 2024 · For an authenticated user or an application to access an encrypted F tablespace, InnoDB uses the master encryption key to decrypt the tablespace key. To start, go to the Percona release page for Ubuntu to find the latest . 33-28, xtrabackup –prepare is faster and memory efficient with the dictionary cache. Percona XtraBackup based backups also allow for table level recovery even though the backup was done at the database level (needs the recovery database server to be Percona Server for MySQL with XtraDB Create a partial backup. This means that you must run xtrabackup as a user who has permission to write the data files. At the same time, Percona XtraBackup runs a background process that watches the Jul 11, 2024 · Percona Xtrabackup is a tool that allows you to create backups of MySQL or MariaDB databases. 34, and MySQL 8. Jun 21, 2024 · Percona XtraBackup is designed to solve this problem. If your backup is from a server with binary logging enabled, xtrabackup will create a file named xtrabackup_binlog_info in the target directory. Partial Backups. To use this feature, simply add the option to a local backup, for example: $ xtrabackup --backup --parallel =4 --target-dir = /path/to/backup. Command. Jun 25, 2021 · To perform a backup, XtraBackup does a lot of different things. 6+. If Percona XtraBackup does not have the appropriate permissions, the Jul 19, 2022 · Percona XtraBackup will refuse to take backups from MySQL 8. deprecated and will be removed in next major release. providing a list of table names in a file. deb packages for installing the repository Jun 21, 2024 · Take an incremental backup using page tracking. The source doesn’t have to be XtraDB or MySQL 8. Jun 22, 2023 · Percona XtraBackup knows where your data is by reading your my. This operation removes the need to scan the pages in the database. Percona XtraBackup 8. The first thing we need to do is install the actual Percona backup utilities. Dec 1, 2018 · xtrabackup: Error: xtrabackup_copy_logfile () failed. This feature was implemented in Percona XtraBackup 2. The xtrabackup binary writes a file called xtrabackup_checkpoints into the backup’s target directory. Percona XtraBackup is a free, online, open source, complete database backups solution for all versions of Percona Server for MySQL and MySQL®. There are three ways to create partial backups: Do not copy back the prepared backup. There is only one caveat about partial backups: do not copy back Jul 25, 2023 · As you can see, from Percona XtraBackup 8. If the server is in either the Waiting Jul 11, 2024 · xtrabackup opens the source data files in read-write mode, although it does not modify the files. Replace these with your actual values. Percona XtraBackup uses this automatically to copy non-InnoDB data to avoid blocking DML queries This can be done by either running xtrabackup --prepare or innobackupex --apply-log. Percona XtraBackup is the world’s only open-source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. 28-20 implements the XBCRYPT_ENCRYPTION_KEY environment variable. A local or streaming backup can be compressed or decompressed with xbstream. To support encryption and decryption of the backups, a new tool xbcrypt was introduced to Percona XtraBackup. The read speed is too slow which usually is a sign of IO congestion. The xtrabackup tool can print out the contents of a my. 0-1 (2024-03-27) Percona XtraBackup 8. 25-17 based on MySQL server 8. It also uses the –use-memory option. cnf . 21. NOTE If you use the GLACIER storage class, the object must be restored to S3 before restoring the backup. Storing backup history on the server was implemented to provide users with additional information about backups that are being taken. . This component provides a list of pages modified since the last backup, and Percona XtraBackup copies only those pages. 35, and MySQL 8. Jul 10, 2023 · Implemented in Percona XtraBackup 8. During the backup process, you should see a lot of output showing the data files being copied, as well as the log file 2022-07-19. Jun 21, 2024 · The version numbers for Percona XtraBackup 8. The feature is in tech preview. STANDARD_IA. 3 version used as a base. mysql --version mysql Ver 8. In order to make a compressed backup you’ll need to use the xtrabackup –compress option: $ xtrabackup --backup --compress --target-dir = /data/compressed/. The master encryption key is stored in a keyring. STDOUT Datasink. 0 International License. If any of the matched or listed tables is deleted Both xtrabackup and innobackupex tools supports incremental backups, which means that it can copy only the data that has changed since the last full backup. 35-31 supports taking backups of the following MySQL-compatible databases: Percona Server for MySQL 8. --incremental-dir = /data/backups/inc1. Percona Xtrabackup can also prepare the backup files for restoration, apply incremental Feb 12, 2021 · Please send us the full output of your xtrabackup prepare command, the output of xtrabackup when you originaly created this backup and the output of ls to list the files from target-dir. Percona XtraBackup is able to take backups seamlessly from Percona Server for MySQL, as the corruption issues have been fixed in the upcoming Jul 25, 2023 · Percona XtraBackup facilitates streaming through the use of an auxiliary tool called xbcloud. xtrabackup --print-param prints out something like the following: # This MySQL options file was generated by XtraBackup. 5 days ago · You can control whether Percona XtraBackup encrypts data during State Snapshot Transfer (SST) using the encrypt option in your configuration. Learn how to use Percona XtraBackup, an open-source tool that can back up data from InnoDB, XtraDB, and MyISAM tables without locking the database. –s3-storage-class=. By default, the --compress option uses the zstandard tool that you can install with the percona-release package configuration tool as follows: Enable the repository Jul 4, 2023 · In my case I am having higher version of xtrabackup than mysql version. 4 from the official Percona software repositories using the appropriate package manager for your system: Use an APT repo. Percona XtraBackup can perform compressed, incremental and streaming backups. 0. You can perform the analysis on a running server, with some chance of errors due Nov 2, 2023 · Percona XtraBackup 8. ibd file. It works by copying the data files and the binary log files of the server, while ensuring that the data is consistent and not corrupted by ongoing transactions. With Percona XtraBackup, you can export individual tables from any InnoDB database, and import them into Percona Server for MySQL with XtraDB or MySQL 8. Percona XtraBackup is a free, open source, complete online backup solution for all versions of Percona Server for MySQL, MySQL® and MariaDB®. Percona XtraDB Cluster (PXC) is a 100% open source, enterprise-grade, highly available clustering solution for MySQL multi-master setups based on Galera. 33-28 implements a new data sink that uses the first in, first out (FIFO) method. To use this option, you must run Percona XtraBackup as the same owner as mysqld. Nov 2, 2023 · Percona XtraBackup 8. This feature adds an exponential backoff, or sleep Jun 12, 2024 · It will notify you that the database was not shut down normally. In order to clean up the backup directory you should use --remove-original option. 1 Like ajstark123 February 22, 2021, 9:28pm Percona XtraBackup is an open source tool for performing hot backups of MariaDB, MySQL and Percona Server databases. It is passed directly to the xtrabackup child process. Stream the backup into an archived named backup. For convenience, xtrabackup binary has the --copy-back option to copy the backup to the datadir of the server: $ xtrabackup --copy-back --target-dir = /data/backups/. Nov 2, 2023 · Dictionary cache. Then it copies all the datafiles and InnoDB redo logs. This file contains the binary log file name and position of the exact point in the binary log to which the prepared However, if backups are both compressed and encrypted, they need to be decrypted before uncompressing. When this finishes, you should see an InnoDB shutdown with a message such as the following, where again Starting with version 8. cnf as follows: Percona XtraBackup Manual. Jul 11, 2024 · Create a full backup. Percona XtraBackup will use Backup locks where available as a lightweight alternative to FLUSH TABLES WITH READ LOCK. This is the default setting. Nov 12, 2020 · Percona XtraBackup 2. Create the full backup with a following command: Jul 11, 2024 · If the data is stored on a single file, this option has no effect. The xtrabackup binary reads the mysqld and xtrabackup sections from any configuration files, in that order. This applies the delta files to the files in /data/backups/base, which rolls Feb 15, 2023 · Percona XtraBackup documentation is (C)2009-2023 Percona LLC and/or its affiliates and is distributed under the Creative Commons Attribution 4. 27-19, the xbcloud binary adds support for the Microsoft Azure Cloud Storage using the REST API. Use a YUM repo to install Percona XtraBackup. To create a backup, run xtrabackup with the --backup option. You need a full datadir as a base, and then you can apply a series of operations from the binary Aug 30, 2017 · Installing the Percona Xtrabackup Tools. Enabling FLUSH TABLES WITH READ LOCK when the server has long-running queries can leave the server in a read-only mode until the queries finish. Jan 19, 2024 · The xbcrypt binary overview. 4 using the following methods. Get expert help ¶ If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional Jun 21, 2024 · Percona XtraBackup can export a table that is contained in its own . The instructions to install Percona XtraBackup 8. All the xtrabackup configuration is done through options, which behave exactly like standard MySQL program options: they can be specified either at the command-line, or through a file such as /etc/my. 7. Encryption Disabled (Default): Set encrypt=0 to disable encryption. It is not recommended to run Feb 4, 2024 · This feature was implemented in Percona XtraBackup 2. mylogin. 4 versions of XtraBackup; Generate autoxtrabackup . We recommend that you install Percona XtraBackup 8. With Percona XtraBackup, you can achieve the following benefits: Percona XtraBackup makes MySQL hot backups for all versions of Percona Server for MySQL, and MySQL. Percona XtraBackup works by remembering the log sequence number (LSN) when it starts, and then copying away the data files. Binary tarballs contain precompiled executable files, libraries, and other dependencies and are compressed tar archives. we observed slowness while execution of Backups. See the xtrabackup documentation for more details. These options are only recognized by xtrabackup binary i. We do not by using the –copy-back option. Logical (mysqldump, mydumper, mysqlpump, mysql shell only for mysql 8) Additionally, it’s recommended to create copies of binlog files. cnf. Percona XtraBackup needs to be able to connect to the database server and perform operations on the server and the datadir when creating a backup, when preparing in some scenarios and when restoring it. The quicklz algorithm is chosen by default. Things you need¶ Setting up a replica for replication with Percona XtraBackup is a straightforward procedure. Extract the binary tarballs to any path. We recommend that you install Percona XtraBackup 2. If you have your configuration file in a non-standard place, you should use the flag --defaults-file =/location/of/my. As the contents of the datafiles change during the backup, the copy is inconsistent. Restoring partial backups should be done by importing the tables, not by using the –copy-back option. The encryption is implemented using the libgcrypt library from GnuPG. This operation may lead to database inconsistencies. The xtrabackup --compress uses the qpress tool that you can install via the percona-release package configuration tool as follows: $ sudo percona-release enable tools. Nov 27, 2017 · Clone percona-qa repo; Clone Percona Server for MySQL 5. If you specify a relative path, the target directory will be relative to the current directory. Percona XtraBackup is a set of following tools: innobackupex. Recovering up to particular moment in database’s history can be done with xtrabackup and the binary logs of the server. Defines the server credentials. Get 2. xtrabackup. In order to do so, there are privileges and permission requirements on its execution that must be fulfilled. / > backup. 23-14 for Linux on x86_64 (Percona Server (GPL), Release '14', Revision '3558242') xtrabackup --version xtrabackup version 8. 29 tables that have been modified using this algorithm. sb py zs ai vq zq rz kt oq mk