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bad fsync?

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bad fsync?

Subject: bad fsync?
From: "A.M." <email@hidden>
Date: Fri, 18 Feb 2005 10:36:37 -0500

MySQL makes the following claim at:
http://dev.mysql.com/doc/mysql/en/news-4-1-9.html

"InnoDB: Use the fcntl() file flush method on Mac OS X versions 10.3 and up. Apple had disabled fsync() in Mac OS X for internal disk drives, which caused corruption at power outages."

First of all, is this accurate? A pointer to some docs or a tech note on this would be helpful.

This change implies that the regular fsync() is somehow intentionally crippled on 10.3+. What is the reasoning for this and does it truly have the consequences that MySQL claims (namely, corruption)?

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