解读MySQL的InnoDB引擎日志工作原理

 

LOG BUFFER           DATA BUFFER
=================    ===============
= Log Record #1 =    = Page Header =
= Log Record #2 =    = Data Row    =
= Log Record #3 =    = Data Row    =
= Log Record #4 =    = Data Row    =
=================    ===============
 

1.         2.         LSN 

Overflows Overflow1.         LOG FILE(S) BEFORE WRITING LOG RECORD #5
=================
= Log Record #1 =
= Log Record #2 =
= Log Record #3 =
= Log Record #4 =
=================

LOG FILE(S) AFTER WRITING LOG RECORD #5
=================
= Log Record #5 =
= Log Record #2 =
= Log Record #3 =
= Log Record #4 =
=================
logs

2.          

CheckPoints  

Recovery