早上看到一条消息，说TokuDB要被放弃了，去官方看了下，确有此事，如下是官方的说法：

TokuDB_is deprecated in the 8.0 series and will be supported through the 8.0 series until further notice. This storage engine will not be included in the next major release of_Percona Server for MySQL. We recommend MyRocks as a long-term migration path.

大体意思就是说，TokuDB在 8.0 版本已标记为废除状态，下一个大版本更新将会移除此引擎，官方推荐了性能更优的 MyROcks 引擎。

不过TokuDB 很多特性还是不错的，让我再回顾下吧：

  • Up to 25x Data Compression
  • Fast Inserts
  • Eliminates Slave Lag withRead Free Replication
  • Hot Schema Changes
  • Hot Index Creation -_TokuDB_tables support insertions, deletions and queries with no down time while indexes are being added to that table
  • Hot column addition, deletion, expansion, and rename -_TokuDB_tables support insertions, deletions and queries without down-time when an alter table adds, deletes, expands, or renames columns
  • On-line Backup

 技术是向前不断进步的，新老技术更替也是很正常了，继续学习吧，这下是关于 myrocks 的介绍。

https://www.percona.com/doc/percona-server/8.0/myrocks/index.html