Disable Flashcache support by default?

Bug #717423 reported by Henrik Ingo
This bug affects 1 person
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Bug Description

MySQL at Facebook includes some kind of Flashcache support (http://www.oscon.com/oscon2010/public/schedule/detail/15567) which is enabled by default. Upon startup you can see this message in the logs:

110207 8:48:04 [Note] Flashcache bypass: disabled
110207 8:48:04 [Note] Flashcache setup error is : ioctl failed

The question is, should Flashcache be disabled, since most Linux users will not have it, or is it correct to have it enabled by default and get the two lines of messages noting it is disabled. In that case the second line could be less dramatic by adding an explanation "this is normal if you do not have Flashcache" to it.

Revision history for this message
Henrik Ingo (hingo) wrote :

Or rather: This message should probably be printed to the error log (like other InnoDB startup messages do) but should not be printed to the command line when starting mysqld via safe_mysqld.

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