Skip to content
logo
Percona Server for MySQL
Extended mysqldump
Initializing search
    percona/psmysql-docs
    percona/psmysql-docs
    • Home
      • The Percona XtraDB storage engine
      • List of features available in Percona Server for MySQL releases
      • Percona Server for MySQL feature comparison
      • Changed in Percona Server 8.0
      • Understand version numbers
      • Install Percona Server for MySQL
        • Install using APT repository
        • Files in DEB package
        • Build APT packages
        • Install from downloaded DEB packages
        • Apt pinning
        • Run Percona Server for MySQL
        • Uninstall
        • Install using a RPM repository
        • Files in RPM package
        • Install from downloaded RPM packages
        • Run Percona Server for MySQL
        • Uninstall
        • Install with binary tarballs
        • Binary tarballs available
        • Install Percona Server for MySQL from a source tarball
        • Compile Percona Server for MySQL 8.0 from source
      • Post-installation
      • Percona Server for MySQL in-place upgrading guide: from 5.7 to 8.0
      • Upgrade using the Percona repositories
      • Upgrade from systems that use the MyRocks or TokuDB storage engine and partitioned tables
      • Upgrade using Standalone Packages
      • Running Percona Server for MySQL in a Docker Container
      • Docker environment variables
      • Improved InnoDB I/O scalability
      • Adaptive network buffers
      • Multiple page asynchronous I/O requests
      • Thread pool
      • XtraDB performance improvements for I/O-bound highly-concurrent workloads
      • Prefix index queries optimization
      • Limit the estimation of records in a Query
      • Jemalloc memory allocation profiling
      • The ProcFS plugin
      • Binary logs and replication improvements
      • Compressed columns with dictionaries
      • Extended SELECT INTO OUTFILE/DUMPFILE
      • Extended SET VAR optimizer hint
      • Improved MEMORY storage engine
      • Suppress warning messages
      • Limiting the disk space used by binary log files
      • Support for PROXY protocol
      • SEQUENCE_TABLE(n) function
      • Slow query log rotation and expiration
      • Trigger updates
      • Extended mysqlbinlog
      • Extended mysqldump
        • Backup locks support
        • Compressed columns support
        • Taking backup by descending primary key order
        • RocksDB support
        • Version specific information
      • InnoDB full-text search improvements
      • Too many connections warning
      • Handle corrupted tables
      • Percona Toolkit UDFs
      • Kill idle transactions
      • XtraDB changed page tracking
      • Enforcing storage engine
      • Expanded fast index creation
      • Backup locks
      • Audit log plugin
      • Start transaction with consistent snapshot
      • Extended SHOW GRANTS
      • Utility user
      • Working with SELinux
      • Working with AppArmor
      • PAM authentication plugin
      • Server variables
      • SSL improvements
      • Data masking
        • Using LDAP authentication plugins
        • LDAP authentication plugin system variables
        • Data at Rest Encryption
        • Use the keyring component or keyring plugin
          • Using the Key Management Interoperability Protocol (KMIP)
          • Use the Amazon Key Management Service (AWS KMS)
          • FIDO authentication plugin
        • Encryption functions
        • Encrypt file-per-table tablespace
        • Encrypt a schema or a general tablespace
        • Encrypt the system tablespace
        • Encrypt temporary files
        • Encrypt binary log files and relay log files
        • Encrypting the Redo Log data
        • Encrypt the undo tablespace
        • Rotate the Master key
        • Work with Advanced Encryption Key Rotation
        • Encrypt doublewrite buffers
        • Verify the encryption for tables, tablespaces, and schemas
      • User statistics
      • Slow query log
      • Extended show engine InnoDB status
      • Show storage engines
      • Process list
      • Misc. INFORMATION_SCHEMA tables
      • Thread based profiling
      • InnoDB page fragmentation counters
      • Stacktrace
      • Libcoredumper
      • Manage group replication flow control
      • Group replication system variables
      • Percona MyRocks introduction
      • Percona MyRocks installation guide
      • Updated supported features
      • MyRocks limitations
      • Differences between Percona MyRocks and Facebook MyRocks
      • MyRocks Information Schema tables
      • MyRocks server variables
      • MyRocks status variables
      • Gap locks detection
      • Data loading
      • Installing and configuring Percona Server for MySQL with ZenFS support
      • TokuDB introduction
      • TokuDB installation
      • Use TokuDB
      • Fast updates with TokuDB
      • TokuDB files and file types
      • TokuDB file management
      • TokuDB background ANALYZE TABLE
      • TokuDB variables
      • TokuDB status variables
      • TokuDB fractal tree indexing
      • TokuDB troubleshooting
      • TokuDB Performance Schema integration
      • Frequently asked questions
      • Migrate and removing the TokuDB storage engine
      • Percona TokuBackup
      • Release notes index
      • Percona Server for MySQL 8.0.30-22 Update (2022-11-21)
      • Percona Server for MySQL 8.0.30-22 (2022-11-21)
      • Percona Server for MySQL 8.0.29-21 (2022-08-08)
      • Percona Server for MySQL 8.0.28-20 (2022-06-20)
      • Percona Server for MySQL 8.0.28-19 (2022-05-12)
      • Percona Server for MySQL 8.0.27-18 (2022-03-02)
      • Percona Server for MySQL 8.0.26-17 (2022-01-26)
      • Percona Server for MySQL 8.0.26-16 (2021-10-20)
      • Percona Server for MySQL 8.0.25-15 (2021-07-13)
      • Percona Server for MySQL 8.0.23-14 (2021-05-12)
      • Percona Server for MySQL 8.0.22-13 (2020-12-14)
      • Percona Server for MySQL 8.0.21-12 (2020-10-13)
      • Percona Server for MySQL 8.0.20-11 (2020-07-21)
      • Percona Server for MySQL 8.0.19-10 (2020-03-23)
      • Percona Server for MySQL 8.0.18-9
      • Percona Server for MySQL 8.0.17-8
      • Percona Server for MySQL 8.0.16-7
      • Percona Server for MySQL 8.0.15-6
      • Percona Server for MySQL 8.0.15-5
      • Percona Server for MySQL 8.0.14
      • Percona Server for MySQL 8.0.13-4
      • Percona Server for MySQL 8.0.13-3
      • Percona Server for MySQL 8.0.12-2rc1
      • List of upstream MySQL bugs fixed in Percona Server for MySQL 8.0
      • List of variables introduced in Percona Server for MySQL 8.0
      • Development of Percona Server for MySQL
      • Trademark policy
      • Index of INFORMATION_SCHEMA tables
      • Frequently asked questions
      • Copyright and licensing information
      • Glossary

    • Backup locks support
    • Compressed columns support
    • Taking backup by descending primary key order
    • RocksDB support
    • Version specific information

    Extended mysqldump¶

    Backup locks support¶

    When used together with the –single-transaction option, the lock-for-backup option makes mysqldump issue LOCK TABLES FOR BACKUP before starting the dump operation to prevent unsafe statements that would normally result in an inconsistent backup.

    More information can be found on the Backup Locks feature documentation.

    Compressed columns support¶

    mysqldump supports the Compressed columns with dictionaries feature. More information about the relevant options can be found on the Compressed columns with dictionaries feature page.

    Taking backup by descending primary key order¶

    –order-by-primary-desc tells mysqldump to take the backup by descending primary key order (PRIMARY KEY DESC) which can be useful if the storage engine is using the reverse order column for a primary key.

    RocksDB support¶

    mysqldump detects when MyRocks is installed and available. If there is a session variable named rocksdb_skip_fill_cache mysqldump sets it to 1.

    mysqldump will now automatically enable session the variable rocksdb_bulk_load if it is supported by the target server.

    Version specific information¶

    • 8.0.12-1: The feature was ported from Percona Server for MySQL 5.7

    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: 2023-01-12
    Back to top
    Percona LLC and/or its affiliates, © 2023
    Made with Material for MkDocs

    Cookie consent

    We use cookies to recognize your repeated visits and preferences, as well as to measure the effectiveness of our documentation and whether users find what they're searching for. With your consent, you're helping us to make our documentation better.