Skip to content
logo
Percona Server for MySQL
Migrate and removing the TokuDB storage engine
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
      • 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 schema or general tablespace
        • Encrypt 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
        • 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
        • Migrating the data to MyRocks Storage Engine
        • Migrating from TokuDB to InnoDB
        • Change the tables from TokuDB to InnoDB
        • Removing the plugins
      • 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

    • Migrating the data to MyRocks Storage Engine
    • Migrating from TokuDB to InnoDB
    • Change the tables from TokuDB to InnoDB
    • Removing the plugins

    Migrate and removing the TokuDB storage engine¶

    Important

    Starting with Percona Server for MySQL 8.0.28-19, the TokuDB storage engine is no longer supported. We have removed the storage engine from the installation packages and disabled the storage engine in our binary builds.

    Starting with Percona Server for MySQL 8.0.26-16, the binary builds and packages include but disable the TokuDB storage engine plugins. The tokudb_enabled option and the tokudb_backup_enabled option control the state of the plugins and have a default setting of FALSE. The result of attempting to load the plugins are the plugins fail to initialize and print a deprecation message.

    We recommend Migrating the data to the MyRocks storage engine. To enable the plugins to migrate to another storage engine, set the tokudb_enabled and tokudb_backup_enabled options to TRUE in your my.cnf file and restart your server instance. Then, you can load the plugins.

    The TokuDB storage engine was declared as deprecated in Percona Server for MySQL 8.0. For more information, see the Percona blog post: Heads-Up: TokuDB Support Changes and Future Removal from Percona Server for MySQL 8.0.

    Migrating the data to MyRocks Storage Engine¶

    To migrate data use the mysqldump client utility or the tools in the MySQL Workbench to dump and restore the database.

    We recommended migrating to the MyRocks storage engine. Follow these steps to migrate the data:

    1. Use mysqldump to backup the TokuDB database into a single file.

    2. Create a MyRocks instance with MyRocks tables with no data.

    3. Replace the references to TokuDB with MyRocks.

    4. Enable the following variable: rocksdb_bulk_load. This variable also enables rocksdb_commit_in_the_middle.

    5. Import the data into the MyRocks database.

    Follow the Removing the plugins steps.

    Migrating from TokuDB to InnoDB¶

    In case you want remove the TokuDB storage engine from Percona Server for MySQL without causing any errors following is the recommended procedure:

    Change the tables from TokuDB to InnoDB¶

    If you still need the data in the TokuDB tables you must alter the tables to other supported storage engine i.e., InnoDB: ALTER TABLE City ENGINE=InnoDB;

    Note

    Do not remove the TokuDB storage engine before you’ve changed your tables to the other supported storage engine. Otherwise, you will not be able to access that data without reinstalling the TokuDB storage engine.

    Removing the plugins¶

    To remove the TokuDB storage engine with all installed plugins you can use the ps-admin script:

    $ ps-admin --disable-tokudb -uroot -pPassw0rd
    

    Script output should look like this:

    Another option is to manually remove the TokuDB storage engine with all installed plugins:

    msql> UNINSTALL PLUGIN tokudb;
    msql> UNINSTALL PLUGIN tokudb_file_map;
    msql> UNINSTALL PLUGIN tokudb_fractal_tree_info;
    msql> UNINSTALL PLUGIN tokudb_fractal_tree_block_map;
    msql> UNINSTALL PLUGIN tokudb_trx;
    msql> UNINSTALL PLUGIN tokudb_locks;
    msql> UNINSTALL PLUGIN tokudb_lock_waits;
    msql> UNINSTALL PLUGIN tokudb_background_job_status;
    

    After the engine and the plugins have been uninstalled you can remove the TokuDB package by using the apt/yum commands:

    [root@centos ~]# yum remove Percona-Server-tokudb-80.x86_64
    

    or apt remove percona-server-tokudb-8.0

    Note

    Make sure you’ve removed all the TokuDB specific variables from your configuration file (my.cnf) before you restart the server, otherwise server could show errors or warnings and won’t be able to start.

    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.