Compression Plugins
MariaDB starting with 10.7.0
Compressions plugins were added in a MariaDB 10.7.0 preview release.
The various MariaDB storage engines, such as InnoDB, RocksDB, Mroonga, can use different compression libraries.
Before MariaDB 10.7.0, each separate library would have to be compiled in in order to be available for use, resulting in numerous runtime/rpm/deb dependencies, most of which would never be used by users.
From MariaDB 10.7.0, five additional MariaDB compression libraries (besides the default zlib) are available as plugins (note that these affect InnoDB and Mroonga only; RocksDB still uses the compression algorithms from its own library):
bzip2
lzma
lz4
lzo
snappy
Installing
Depending on how MariaDB was installed, the libraries may already be available for installation, or may first need to be installed as .deb or .rpm packages, for example:
Once available, install as a plugin, for example:
The compression algorithm can then be used, for example, in InnoDB compression:
Upgrading
When upgrading from a release without compression plugins, if a non-zlib compression algorithm was used, those tables will be unreadable until the appropriate compression library is installed. mariadb-upgrade should be run. The --force
option (to run mariadb-check) or mariadb-check
itself will indicate any problems with compression, for example:
or
In this case, the appropriate compression plugin should be installed, and the server restarted.
See Also
10.7 preview feature: Compression Provider Plugins (mariadb.org blog)
Add zstd as a compression plugin - MDEV-34290
This page is licensed: CC BY-SA / Gnu FDL
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