Type:
Priority:
Resolution:
Fixed
There is a little used option innodb_defragment that would make OPTIMIZE TABLE not rebuild the table as usual for InnoDB, but instead cause the index B-trees to be optimized in place.
This option uses excessive locking (exclusively locking index trees). It never covered SPATIAL INDEX or FULLTEXT INDEX . Storage space was never reclaimed.
Because this option is not particularly useful and causes a maintenance burden (last, in MDEV-30400
The following parameters will be deprecated:
innodb_defragment innodb_defragment_n_pages innodb_defragment_stats_accuracy innodb_defragment_fill_factor_n_recs innodb_defragment_fill_factor innodb_defragment_frequency
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Task
Blocker
MDEV-28558 The MTR based test innodb_defrag_concurrent is not repeatable.
