MariaDB MaxScale 2.5.20 Release Notes -- 2022-05-10

MariaDB MaxScale 2.5.20 Release Notes -- 2022-05-10

Release 2.5.20 is a GA release.

This document describes the changes in release 2.5.20, when compared to the previous release in the same series.

If you are upgrading from an older major version of MaxScale, please read the upgrading document for this MaxScale version.

For any problems you encounter, please consider submitting a bug report on our Jira.

New Features

  • MXS-3997 Name threads for better CPU usage view
  • MXS-3665 Provide more feedback on TLS cipher mismatch

Bug fixes

  • MXS-4110 Schemarouter does not ignore the sys schema
  • MXS-4109 The /user/inet endpoint fails schema validation
  • MXS-4103 Binlogrouter doesn't decrypt passwords
  • MXS-4096 Binlog Routers SHOW SLAVE STATUS does not show SSL information
  • MXS-4093 User account manager does not detect db-level priv changes
  • MXS-4092 schemarouter: duplicate tables found, if table differs on upper lower case only
  • MXS-4086 REST API allows deletion of last user
  • MXS-4074 Status of boostrap servers not always the same as the status of corresponding runtime servers
  • MXS-4053 The cache does not handle multi-statements properly.
  • MXS-4045 Add maxctrl command for dumping the whole REST API output
  • MXS-4040 Mariadbmon constantly logs errors if event scheduler is disabled
  • MXS-4039 Debug assert with connection_keepalive and slow server
  • MXS-4038 maxctrl reload service does not bypass the users refresh rate limit
  • MXS-4034 Persistent connection pool is not automatically flushed
  • MXS-4024 CDC protocol logs a notice message for each new connection
  • MXS-4023 Schema auto-generation is not documented
  • MXS-4022 Avrorouter doesn't log an error for failed SHOW CREATE TABLE
  • MXS-4008 Query classifier cache does not properly record all used memory
  • MXS-4004 Race condition in KILL command execution
  • MXS-4003 GSSAPI authenticator documentation is out of date
  • MXS-4002 KILL commands leave no trace in the log
  • MXS-4001 The Cache filter cannot cope with the Redis server closing the connection
  • MXS-4000 Binlogrouter creates malformed replication events
  • MXS-3954 Got below signal 11 error after upgrading maxscale version maxscale 6.2.1
  • MXS-3945 Sync marker mismatch while reading Avro file
  • MXS-3931 Check certificates with extendedKeyUsage options set for correct purpose flags
  • MXS-3808 Improve Rest API performance

Known Issues and Limitations

There are some limitations and known issues within this version of MaxScale. For more information, please refer to the Limitations document.


RPM and Debian packages are provided for supported the Linux distributions.

Packages can be downloaded here.

Source Code

The source code of MaxScale is tagged at GitHub with a tag, which is identical with the version of MaxScale. For instance, the tag of version X.Y.Z of MaxScale is maxscale-X.Y.Z. Further, the default branch is always the latest GA version of MaxScale.

The source code is available here.


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