For instructions about using these options, see Section 3.3.3, “Making a Compressed Backup”.
Create backup in compressed format. For a regular backup, only the InnoDB data files are created in compressed format, using the
.ibzextension. For a single-image backup, again only the InnoDB data files are compressed inside the backup image.
Default: compression is disabled. Default compression level is 1 when compression is enabled. You can change the amount of compression with the
Default: 1 (lowest and fastest compression). Explicitly specifying a non-zero value through configuration file or command line automatically enables the
--compressoption as well.
When used with the
apply-logoperation, uncompresses the compressed backup before applying the InnoDB log.