On Fri, Dec 17, 2004 at 09:39:00PM -0500, Joel Anderson wrote: > > I just encountered a somewhat serious bug. I noticed my partition was > > low on disk space, and deleted some older videos, and while the files > > were deleted and to du they were gone, to df the space was still used. > > > > In other words, some process had them still open. And so I killed > > mythbackend, and the space was freed, and I restarted it. > > > > This was all long after any commercial flaggings were finished. No > > transcodes in play, one frontend running but not watching. > > > > So something in mythbackend was keeping file descriptors open and > > stopping the OS from releasing the files. > > > > Not seeing any obvious threads -- anybody had this? I will test again > > when I have something else to delete, probably later today. > > It's a known issue with 0.16, has been fixed in CVS for a while now. > http://www.gossamer-threads.com/lists/mythtv/users/88797 >
Thanks, don't know why I didn't see that in my searches. I had not clued that you should use NFS for the frontend rather than the frontend protocol, I will look for the docs on doing that. It was such a major problem I assumed it would be easy to find, I had not realized it was only coming on those who use an independent frontend. Thanks again. Interesting to read the filesystem debate as well. I put my system on xfs, but the non-shrinkability of xfs is making me think if I might consider jfs, reiser or back to ext3. Not that I plan to shrink in normal use, but I've been thinking it might make more sense to do that at times considering how cheap and fast USB-2 external drive enclosures are. Slap on a temporary drive, expand the volume onto it for high-needs (like going away on a trip) and pull it later. Of course, by the time I need that I suspect we'll see myth support multiple filesystems for the video spool, and even offline spools. Problem is, with video volumes now in the 1-2 deciteraybte size (first time I have used that number!) once you pick your filesystem, you are stuck with it without a long slog, since copying this much data, even on today's disk speeds, still is quite a job.
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