1. MySQL新技术研究与实践 周振兴@TaobaoDBA iData Forum 2010-12-06 1

2. 关于主题 Performance / Flashcache ... Hardware Software Patches InnoDB-SSD Online file added ...... OSC from FB

3. Performance is about the Capacity 30,0000 / s Cache Miss 1,0000 / s Capacity20%=== 1亿用户 is also about the Cost&&Technology

4. Hardware Disk / Memory Memory

5. Why Flashcache SSD vs PCIe-SSD Winner: PCIe-ssd

7. 高 IOPS

9. Flashcache原理 VFS File System /dev/mapper/cachedev 这就是Flashcache： 将两个块设备，虚拟成一个带缓存的块设备 /dev/sdb /dev/sda http://orczhou.com Sample 1.5TB SAS + 320GB Fio

10. Flashcache

11. 安装 ./flashcache_create cachedev/dev/fio/dev/sda12 mount /dev/mapper/cachedev/u01 参考 Flashcache README

12. WB vs WT Write back High performance main version of flashcache Write through more safe Less performance

13. Another side Hot data distribution Sample 1.5TB SAS + 320GB Fio Keep is simple , stupid Maybe your are rich

15. MySQL Version

16. 压缩特性 SamplePage

17. 压缩特性 空间节约 788M sns_info.ibd 376M sns_info.ibd 性能 BP can hold more data

19. Why patch Should we change something?

20. Main Contributor 林晓斌 From Taobao.com

21. Patch.1SSD Write Through 读优化

22. Patch.2 No more connection Close the door Why not max_connection

23. Patch.3 Online data added InnoDBshare table space You must restart your Database 我们不想因此而降低可用性

24. Patch 4 Table dml 开发中... It’s cool

25. Q & A