ext4 and data loss
Posted Mar 13, 2009 23:10 UTC (Fri) by quotemstr
In reply to: ext4 and data loss
Parent article: ext4 and data loss
It is the D in ACID. As you mentioned yourself, rename requires only A form ACID - and that is exactly what you get.
That's my whole point
: sometimes you want atomicity without
is how you express that. Except on certain recent filesystems, it's always
worked that way. ext4 not putting a write barrier before
is a regression.
But the main performance problem is bad applications that gratuitously write hundreds of small files to the file system.
And why, pray tell, is writing files
to a filesystem
a bad thing? Writing plenty of small files is a perfectly legitimate use of the filesystem. If a filesystem buckles in that scenario, it's the fault of the filesystem, not the application. Blaming the application is blaming the victim.
to post comments)