On 19 June 2015 at 13:46, Gregory Farnum <g...@gregs42.com> wrote: > On Thu, Jun 18, 2015 at 10:15 PM, Roland Giesler <rol...@giesler.za.net> > wrote: > > On 15 June 2015 at 13:09, Gregory Farnum <g...@gregs42.com> wrote: > >> > >> On Mon, Jun 15, 2015 at 4:03 AM, Roland Giesler <rol...@giesler.za.net> > >> wrote: > >> > I have a small cluster of 4 machines and quite a few drives. After > >> > about 2 > -3 weeks cephfs fails. It's not properly mounted anymore > >> > in > > /mnt/cephfs, which of course causes the VM's running to fail too. > >> > > <snip>
> > > > > > I'm under the impression that CephFS is the filesystem implimented by > > ceph-fuse. Is it not? > > Of course it is, but it's a different implementation than the kernel > client and often has different bugs. ;) Plus you can get a newer > version of it easily. > Let me look into it and see how it might help me. > >> Other than that, can you include more > >> information about exactly what you mean when saying CephFS unmounts > >> itself? > > > > > > Everything runs fine for weeks. Then suddenly a user reports that a VM > is > > not functioning anymore. On investigation is transpires than CephFS is > not > > mounted anymore and the error I reported is logged. > > > > I can't see anything else wrong at this stage. ceph is running, the osd > are > > all up. > > Maybe one of our kernel devs has a better idea but I've no clue how to > debug this if you can't give me any information about how CephFS came > to be unmounted. It just doesn't make any sense to me. :( > I'll go through the logs again and find the point where it happens and post it. - Roland
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