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解读MySQL的InnoDB引擎日志工作原理

2010-08-09 09:14 253 查看
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
OverflowsOverflow1. 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
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