On Mon, Nov 13, 2023 at 3:09 PM Mart Raudsepp <l...@gentoo.org> wrote:
> On Wed, 2023-11-08 at 19:08 +0000, Neil Bothwick wrote: > > On Wed, 8 Nov 2023 16:17:19 +0200, Alan McKinnon wrote: > > > > > On Wed, Nov 8, 2023 at 4:10 PM Neil Bothwick <n...@digimed.co.uk> > > > wrote: > > > > > > > I have PORTAGE_TMPDIR on /tmp, which is a 24GB tmpfs. Last night, > > > > an > > > > update failed with an out of space error. df showed only 440MB > > > > free > > > > but du and ndcu both showed well under 1GB in use (including > > > > hidden > > > > files). this has happened on the odd occasion in the past and the > > > > only solution appears to be to reboot. Of course, that means I > > > > cannot > > > > provide any more information until it happens again. > > > > > > > > Has anyone else experienced this or, hopefully, resolved it > > > > without > > > > rebooting? > > > > > Hey Neil, > > > > > > Yeah had this a few times. Always turns out to be deleted files > > > that > > > something still has a handle on > > > > Hah! I never thought of that one. I'll try that next time it happens. > > > Another common case is that it runs out of inodes, not space, > especially if df actually says there is free spaces. Check > df -i /tmp > instead then - it might tell IFree is 0 and IUsed and Inodes are the > same non-0 value. > > Interesting side note: I used to worry about free inodes a lot, but stopped when I realised I had only ever run into the problem once: some damn fool had created an account on the company FTP server for CDRs to be uploaded that goe crunched and sent somewhere in the bowels of the billing dept. The same damn fool neglected to write any kind of cleanup code, and when the sender started having difficulties I had myself a look. That upload/ dir had 1.5 million files in it and yet the server was working fine, except if you tried to ls or do anything that needed to read the dir. Deleting that lot took IIRC 6 or 8 hours! I suppose this and things like it are why the big players are now making XFS the default fs on install. Even a mid-sized machine these days can max out ext4 -- Alan McKinnon alan dot mckinnon at gmail dot com
