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Percona XtraBackup 8.0.32-26 (2023-04-04)
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    • Home
      • Release notes index
      • Percona XtraBackup 8.0.34-29 (2023-08-21)
      • Percona XtraBackup 8.0.33-28 (2023-07-19)
      • Percona XtraBackup 8.0.33-27 (2023-05-25)
      • Percona XtraBackup 8.0.32-26 (2023-04-04)
        • Release highlights
        • Improvements
        • Bug fixes
        • Useful links
      • Percona XtraBackup 8.0.32-25 (2023-02-27)
      • Percona XtraBackup 8.0.31-24 (2023-02-07)
        • 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
      • About Percona XtraBackup
      • How Percona XtraBackup works
      • Understand version numbers
        • LRU dump backup
        • Throttling backups
        • Store backup history on the server
        • Dictionary cache
        • Point-in-time recovery
        • Restore individual tables
      • Encrypted InnoDB tablespace backups
      • FLUSH TABLES WITH READ LOCK option
      • Improved log statements
      • lock-ddl-per-table option improvements
      • Smart memory estimation
      • Work with binary logs
      • Overview
        • The xtrabackup binary overview
        • The xtrabackup option reference
        • xtrabackup implementation details
        • Configure xtrabackup
        • Analyze table statistics
      • The xbcrypt binary overview
        • The xbstream binary overview
        • Take a streaming backup
        • Accelerate the backup process
        • Encrypt backups
        • The xbcloud binary overview
          • Use the xbcloud binary with Amazon S3
          • Use the xbcloud binary with an IAM instance profile
          • Use the xbcloud binary with Swift
          • Use the xbcloud binary with Google Cloud Storage
          • Use the xbcloud binary with Microsoft Azure Cloud Storage
          • Use the xbcloud binary with MinIO
        • Update curl utility
        • FIFO data sink
        • Exponential backoff
      • Quickstart Guide for Percona XtraBackup
      • Install Percona XtraBackup 8.0 overview
        • Server version and backup version comparison
        • Connection and privileges needed
        • Permissions needed
        • Use APT repositories
        • Files in DEB package
        • Downloaded DEB packages
        • Apt pinning
        • Work with AppArmor
        • Uninstall
        • Use RPM repositories
        • Files in RPM package
        • Downloaded RPM packages
        • Work with SELinux
        • Uninstall
        • Install with binary tarballs
        • Binary tarballs available
        • Compile and install Percona XtraBackup 8.0 from source
        • Run Percona XtraBackup 8.0 in a Docker container
        • Create a full backup
        • Prepare a full backup
        • Create an incremental backup
        • Prepare an incremental backup
        • Take an incremental backup using page tracking
        • Create a compressed backup
        • Prepare the backup
        • Create a partial backup
        • Prepare a partial backup
        • Create an individual partitions backup
        • Prepare an individual partitions backup
        • Restore full, incremental, compressed backups
        • Restore a partial backup
        • Restore an individual partitions backup
        • How to set up a replica for replication in 6 simple steps with Percona XtraBackup
        • How to create a new (or repair a broken) GTID-based replica
        • Make backups in replication environments
        • Verify backups with replication and pt-checksum
      • Error Message: Found tables with row versions due to INSTANT ADD/DROP columns
      • xtrabackup exit codes
      • Index of files created by Percona XtraBackup
      • Frequently asked questions
      • Glossary
      • Percona Toolkit version checking
      • Trademark policy
      • Copyright and licensing information

    • Release highlights
    • Improvements
    • Bug fixes
    • Useful links

    Percona XtraBackup 8.0.32-26 (2023-04-04)¶

    Release date April 4, 2023
    Install instructions Install Percona XtraBackup

    Percona XtraBackup for MySQL Databases enables MySQL backups without blocking user queries. Percona XtraBackup is ideal for companies with large data sets and mission-critical applications that cannot tolerate long periods of downtime. Offered free as an open source solution, Percona XtraBackup drives down backup costs while providing unique features for MySQL backups.

    Release highlights¶

    This release includes improvements and bug fixes. Percona has implemented a two-stage release process for each version. The first release primarily ensures compatibility with the latest MySQL version, to help those customers who need an updated version of Percona XtraBackup as soon as possible. The second release contains additional bug fixes and any improvements or new features.

    This release fixes the security vulnerability CVE-2022-25834 with PXB-2977.

    This version adds the --estimate-memory parameter to enable/disable the Smart memory estimation feature during the backup phase.

    Improvements¶

    PXB-2882: Removes bitmap code and variables.

    PXB-2979: The Smart memory estimation feature parses metadata from the redo log to estimate the required memory to prepare a backup. On write-intensive workloads, this behavior caused the delay of the redo follow thread.

    PXB-2980: Adds the --estimate-memory parameter to enable/disable the Smart memory estimation feature during the backup phase.

    Bug fixes¶

    PXB-2264: When a table with the next auto incremental value 2 was exported using Percona XtraBackup, the table got the next auto incremental value 1 instead of 2.

    PXB-2954: During prepare phase Percona XtraBackup uses Serialized Dictionary information (SDI) to create the tabels’s metadata. If there was an orphan table (leftover from a upgrade) without SDI information, Percona XtraBackup failed to prepare a backup.

    PXB-2970: Removed unnecessary check for redo log files at the end of backup in case the redo archive was enabled.

    PXB-2972: An error after the redo apply phase caused an assertion failure instead of a graceful exit.

    PXB-2977: Fixed the security vulnerability CVE-2022-25834.

    PXB-2998: Due to a server bug in the upgrade, the server leaves the dictionary tables in a temporary schema instead of the mysql schema. Percona Xtrabackup can now successfully prepare these backup directories.

    PXB-2999: Removed the warning message that MLOG_INDEX_LOAD redo log record was found.

    PXB-3022: Reduced the memory required for --prepare phase.

    Useful links¶

    The Percona XtraBackup GitHub location

    Contribute to the documentation

    For training, contact Percona Training - Start learning now.

    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: 2023-07-10
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