Date: Sun, 26 Nov 2006 20:04:22 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Peter Schuller <peter.schuller@infidyne.com> Cc: freebsd-questions@freebsd.org Subject: Re: Empty directory 60M in size; used to contain 1.7 million files Message-ID: <20061127020422.GH29363@dan.emsphone.com> In-Reply-To: <200611270131.44366.peter.schuller@infidyne.com> References: <200611270131.44366.peter.schuller@infidyne.com>
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In the last episode (Nov 27), Peter Schuller said: > Observe: > > hyperion# ls -la > total 61634 > drwxr-xr-x 2 xxx yyy 63047168 Nov 18 21:33 . > drwxr-xr-x 6 xxx yyy 512 Oct 8 16:39 .. > hyperion# find . > . > hyperion# > > The one special circumstance is that the directory previously > contained 1.7 million small files, that are now deleted. This is on > FreeBSD 6.1 with UFS2 + softupdates. No snapshots exist of the > filesystem. > > 1.7 million files may be extreme, but I don't see why an empty > directory would ever consume more than one inode? Directories are only shrunk when a file is created and the slack directory space can be trivially truncated. This is to avoid useless compaction during "rm -rf"-style activities of a directory that will just be deleted anyway. Just create a dummy file with "touch" and the directory will shrink down to 1 block. You can then remove the file. -- Dan Nelson dnelson@allantgroup.com
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