ba23aa9ce5
Clarify some parts and add note of switchover master autoselection. Also update release notes.
69 lines
2.6 KiB
Markdown
69 lines
2.6 KiB
Markdown
# MariaDB MaxScale 2.3.0 Release Notes
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Release 2.2.0 is a Beta release.
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This document describes the changes in release 2.3.0, when compared to
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release 2.2.
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For any problems you encounter, please consider submitting a bug
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report at [Jira](https://jira.mariadb.org).
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## Changed Features
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### Session Command History
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The _readwritesplit_ session command history is now enabled mby default but it
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is limited to a total of 50 distict session commands. This default allows most
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sessions to leverage the newly improved reconnection mechanism without having to
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explicitly enable the history. When the limit of 50 commands is exceeded, the
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session command history is disabled. This makes it possible to use pooled
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connections by default without having to explicitly disable the history (this
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was the case with pre-2.1 versions of MaxScale).
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The way that the history is stored has also changed. Instead of storing all
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session commands, each session only stores the first and last execution of each
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command. This way the history is compressed into a compact representation while
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still retaining the relative order of each command.
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To keep the old functionality, add `disable_sescmd_history=true` to the service
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definition.
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### Switchover new master autoselection
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The switchover command in *mariadbmon* can now be called with just the monitor
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name as parameter. In this case the monitor will automatically select a server
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for promotion.
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## Dropped Features
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## New Features
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### Runtime Configuration of the Cache
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With the variable `@maxscale.cache.enabled` it is now possible for a
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client to specify whether the cache should be used. Please see the
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[Cache](../Filters/Cache.md) documentation for details.
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## Bug fixes
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[Here is a list of bugs fixed in MaxScale 2.3.0.](https://jira.mariadb.org/issues/?jql=project%20%3D%20MXS%20AND%20issuetype%20%3D%20Bug%20AND%20status%20%3D%20Closed%20AND%20fixVersion%20%3D%202.3.0)
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## Known Issues and Limitations
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There are some limitations and known issues within this version of MaxScale.
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For more information, please refer to the [Limitations](../About/Limitations.md) document.
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## Packaging
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RPM and Debian packages are provided for the Linux distributions supported
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by MariaDB Enterprise.
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Packages can be downloaded [here](https://mariadb.com/resources/downloads).
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## Source Code
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The source code of MaxScale is tagged at GitHub with a tag, which is identical
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with the version of MaxScale. For instance, the tag of version X.Y.Z of MaxScale
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is X.Y.Z. Further, *master* always refers to the latest released non-beta version.
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The source code is available [here](https://github.com/mariadb-corporation/MaxScale).
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