The Ultimate Guide to High Availability with MariaDB
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MariaDB MaxScale 2.2.5 Release Notes -- 2018-04-25

MariaDB MaxScale 2.2.5 Release Notes -- 2018-04-25

Release 2.2.5 is a GA release.

This document describes the changes in release 2.2.5, when compared to release 2.2.4.

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

Changed Features

  • Info level messages will now also be logged to syslog, if logging to syslog is enabled.

Dropped Features

New Features

  • The user can define custom SQL queries which are executed during switchover, failover and rejoin. See MariaDB Monitor documentation for more information.

MaxCtrl: Raw REST API Calls

MaxCtrl is now able to perform raw HTTP GET calls that return the JSON data from the REST API. It also supports value extraction with JavaScript style syntax.

For example, extracting just the state of all servers as a JSON array can be done with the following command:

[markusjm@localhost ~]$ maxctrl api get servers data[].attributes.state
["Master, Running","Slave, Running","Slave, Running","Slave, Running"]

Bug fixes

  • MXS-1819 log_info does not log to syslog
  • MXS-1815 threads=auto doesn't work as documented
  • MXS-1814 Log warning when log_debug is used with release packages
  • MXS-1808 COM_STMT_SEND_LONG_DATA lead to crash
  • MXS-1807 Module command domains are case sensitive
  • MXS-1805 MaxScale may hang with multiple concurrent maxadmin calls.
  • MXS-1803 MaxScale docker image does not work
  • MXS-1787 Crash with mysql client test test_bug49972
  • MXS-1786 Hang with COM_STATISTICS
  • MXS-1785 request 16M-1 normal sql + 'select 1' core dump with debug mode
  • MXS-1776 Hang with mysql test case test_basic_cursors
  • MXS-1773 LOAD DATA LOCAL INFILE confuses readwritesplit
  • MXS-1765 Internal client connections write data in wrong order
  • MXS-1757 Problem while linking libavrorouter.so on Ubuntu 14.04
  • MXS-1751 Maxscale crashes when certain config is in play (with nodes down)
  • MXS-1747 Rejoin functions should print better errors
  • MXS-1746 The session-specific gtid_domain_id is queried instead of the global one
  • MXS-1743 Maxscale unable to enforce round-robin between read service for Slave
  • MXS-1618 Maxadmin Binary Hangs on a Big endian Platform

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 Linux distributions supported by MariaDB Enterprise.

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 X.Y.Z. Further, master always refers to the latest released non-beta version.

The source code is available here.

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