MariaDB MaxScale 6.2.0 Release Notes -- 2021-11-26

Release 6.2.0 is a GA release.

This document describes the changes in release 6.2.0, 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-3813 Support PS direct execution in hintfilter
• MXS-3771 Add row count to qlafilter
• MXS-3755 Handle multiple replication sources on rejoin
• MXS-3733 Add keytab filepath configuration option to GSSAPI authenticator
• MXS-3701 Add canonical query form into qlafilter
• MXS-3681 Refactor SQL GUI to support multiple SQL connections
• MXS-3680 Multiple SQL connections
• MXS-3675 History/favorite queries
• MXS-3659 Show Slave Status in GUI
• MXS-3645 Transaction Performance Monitoring Filter functionality moved to Qlafilter
• MXS-3639 Show Stored procedures and Triggers in schema tree
• MXS-3638 Multi-tab query editor
• MXS-3636 Filter result by specific column
• MXS-3635 Quicker access to "Place Schema in Editor"
• MXS-3634 Add DDL editor
• MXS-3632 Add right click context menu to schema tree
• MXS-3613 Support PS with metadata skip (i.e. MARIADB_CLIENT_CACHE_METADATA)
• MXS-3526 GSSAPI authenticator supports only one principal and only the default location for the keytab
• MXS-3475 Extend PAM support to include Group Mapping
• MXS-3453 Add counter for failed authentication attempts
• MXS-3363 Make tee filter also syncronously
• MXS-3281 r/w split slave_selection_criteria should have none
• MXS-3037 show detail processlist like at mariadb
• MXS-2074 Handle prepared statements in NamedServerFilter
• MXS-1892 Support deprecate eof

Bug fixes

• MXS-3883 nosqlprotocol parameters are not serialized correctly
• MXS-3881 Maxscale killing connection to backend node when load data infile is run with transaction replay
• MXS-3880 Bias value for open connections is too large
• MXS-3878 The create server command doesn't allow custom parameters
• MXS-3876 sys schema not ignored by schemarouter
• MXS-3857 Pinloki initial gtid scan incorrectly reads entire files
• MXS-3849 Unable to configure nested parameters via MaxCtrl
• MXS-3847 Node hostname is not escaped properly
• MXS-3846 debug=enable-statement-logging doesn't work with mxq::MariaDB
• MXS-3845 Sending binlog events is inefficient
• MXS-3838 Add reconnect functionality to the GUI
• MXS-3836 refresh_databases does nothing
• MXS-3835 Timeout for connection dialog in the GUI is not parsed as number
• MXS-3834 SQL API has no reconnect functionality
• MXS-3833 Query editor timeout is too aggressive
• MXS-3824 Allow symbolic link for path to directory /usr/share/maxscale/gui
• MXS-3815 maxscale crash
• MXS-3814 maxscale rpl_state is empty
• MXS-3809 When MariaDBMonitor acquires lock majority, the log message gives the impression that auto_failover is enabled even when it is not configured
• MXS-3800 Not enough information in server state change messages
• MXS-3793 Race condition in GCUpdater shutdown
• MXS-3778 MaxScale crashes when using Cache filter
• MXS-3777 COMMIT in prepared statement causes warnings
• MXS-3772 Qlafilter message timing is inconsistent
• MXS-3770 Bundle Connector-C plugins with MaxScale
• MXS-3736 Crash with kafkaimporter and no servers
• MXS-3730 idle_session_pool_time=0s doesn't immediately pool idle connections
• MXS-3720 idle_session_pool_time should support prepared statements
• MXS-3717 Crash on object type change with config_sync_cluster
• MXS-3711 Qlafilter cannot be modified at runtime
• MXS-3710 Namedserverfilter cannot be modified at runtime
• MXS-3709 Masking filter cannot be modified at runtime
• MXS-3690 MaxCtrl parameter format is inconsistent
• MXS-3689 Protocol module configurations are not persisted
• MXS-3688 MaxCtrl doesn't support listener module parameters
• MXS-3687 Lack of nested parameters is not detected
• MXS-3686 Object names with characters outside of the ASCII range are not rejected
• MXS-3685 nosqlprotocol doesn't start TLS session
• MXS-3672 MaxCtrl output is not very readable
• MXS-3630 Update user accounts when backend login fails
• MXS-3618 config_sync_cluster change detection is inadequate
• MXS-3594 Filters can be altered but no filter declares parameters as alterable
• MXS-3580 Avrorouter should store full GTID coordinates
• MXS-3514 Speed up special query parsing (pcre2)
• MXS-3498 Improve Multistatement detect performance
• MXS-3458 Execution of PS fails when strict_sp_calls is enabled
• MXS-3359 QLA filter append= should default to true, at least when using log_type=unified
• MXS-3353 Tee filter loses statements if branch target is slower
• MXS-3308 Passing options in interactive mode returns an empty error
• MXS-2992 ALTER TABLE statements not working with masking filter

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.

Packaging

RPM and Debian packages are provided for the supported 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.