As someone suggested, I installed linux-generic-hwe-16.04 package on Ubuntu 16.04 to get kernel of 17.10, and then rebooted all VMs, here is what I observed: - ceph monitor node froze upon reboot, in another case froze after a few minutes - ceph OSD hosts easily froze - ceph admin node (which runs no ceph service but ceph-deploy) never freezes - ceph rgw nodes and ceph mgr so far so good
Here are two images I captured: https://drive.google.com/file/d/11hMJwhCF6Tj8LD3nlpokG0CB_oZqI506/view?usp=sharing https://drive.google.com/file/d/1tzDQ3DYTnfDHh_hTQb0ISZZ4WZdRxHLv/view?usp=sharing Thanks. On Sat, Jan 20, 2018 at 7:03 PM, Brad Hubbard <bhubb...@redhat.com> wrote: > On Fri, Jan 19, 2018 at 11:54 PM, Youzhong Yang <youzh...@gmail.com> > wrote: > > I don't think it's hardware issue. All the hosts are VMs. By the way, > using > > the same set of VMWare hypervisors, I switched back to Ubuntu 16.04 last > > night, so far so good, no freeze. > > Too little information to make any sort of assessment I'm afraid but, > at this stage, this doesn't sound like a ceph issue. > > > > > On Fri, Jan 19, 2018 at 8:50 AM, Daniel Baumann <daniel.baum...@bfh.ch> > > wrote: > >> > >> Hi, > >> > >> On 01/19/18 14:46, Youzhong Yang wrote: > >> > Just wondering if anyone has seen the same issue, or it's just me. > >> > >> we're using debian with our own backported kernels and ceph, works rock > >> solid. > >> > >> what you're describing sounds more like hardware issues to me. if you > >> don't fully "trust"/have confidence in your hardware (and your logs > >> don't reveal anything), I'd recommend running some burn-in tests > >> (memtest, cpuburn, etc.) on them for 24 hours/machine to rule out > >> cpu/ram/etc. issues. > >> > >> Regards, > >> Daniel > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > -- > Cheers, > Brad >
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