cmu15445 fall2017

related document

• schedule

• projects & homeworks

project profile

• Project 1 - Buffer Pool

• Project 2 - B+ Tree

• Project 3 - Concurrency Control

• Project 4 - Logging & Recovery

Project1 - Buffer Pool

参考资料

• Lab1

功能

• 在存储管理器中实现缓冲池。缓冲池负责将物理页面从主存储器来回移动到磁盘。

组件

• 可扩展的哈希表
• LRU页面替换政策
• 缓冲池管理器

Project2 - B+ Tree

参考资料

• lab2

Project3 - Concurrency control

参考资料

• lab3

project4

• lab4

• Because the test code is pretty simple and the code base is not fully funcitonal, problems may no be unveiled.

• Dealing with NewPage log_record in redo phase during log recovery.

-> NewPage log_record do not have info about the newly allocated page.

-> Disk Manager don't ensure the page with same page_id allocated in redo phase.