I just realized that this issue is probably because I’m running jewel 10.2.1 on the servers side, but accessing from a client running hammer 0.94.7 or infernalis 9.2.1 Here is what happens if I run rbd ls from a client on infernalis. I was testing this access since we weren’t planning on building rpms for Jewel on CentOS 6 $ rbd ls 2016-06-13 11:24:06.881591 7fe61e568700 0 -- :/3877046932 >> 10.1.77.165:6789/0 pipe(0x562ed3ea7550 sd=3 :0 s=1 pgs=0 cs=0 l=1 c=0x562ed3ea0ac0).fault 2016-06-13 11:24:09.882051 7fe61137f700 0 -- :/3877046932 >> 10.1.78.75:6789/0 pipe(0x7fe608000c00 sd=3 :0 s=1 pgs=0 cs=0 l=1 c=0x7fe608004ef0).fault 2016-06-13 11:24:12.882389 7fe61e568700 0 -- :/3877046932 >> 10.1.77.165:6789/0 pipe(0x7fe608008350 sd=4 :0 s=1 pgs=0 cs=0 l=1 c=0x7fe60800c5f0).fault 2016-06-13 11:24:18.883642 7fe61e568700 0 -- :/3877046932 >> 10.1.77.165:6789/0 pipe(0x7fe608008350 sd=3 :0 s=1 pgs=0 cs=0 l=1 c=0x7fe6080078e0).fault 2016-06-13 11:24:21.884259 7fe61137f700 0 -- :/3877046932 >> 10.1.78.75:6789/0 pipe(0x7fe608000c00 sd=4 :0 s=1 pgs=0 cs=0 l=1 c=0x7fe608007110).fault Michael Kuriger Sr. Unix Systems Engineer * mk7193@xxxxxx |( 818-649-7235 On 6/13/16, 2:10 AM, "Ilya Dryomov" <idryomov@xxxxxxxxx> wrote: >On Fri, Jun 10, 2016 at 9:29 PM, Michael Kuriger <mk7193@xxxxxx> wrote: >> Hi Everyone, >> I’ve been running jewel for a while now, with tunables set to hammer. However, I want to test the new features but cannot find a fully compatible Kernel for CentOS 7. I’ve tried a few of the elrepo kernels - elrepo-kernel 4.6 works perfectly in CentOS 6, but not CentOS 7. I’ve tried 3.10, 4.3, 4.5, and 4.6. >> >> What does seem to work with the 4.6 kernel is mounting, read/write to a cephfs, and rbd map / mounting works also. I just can’t do 'rbd ls' >> >> 'rbd ls' does not work with 4.6 kernel but it does work with the stock 3.10 kernel. > >"rbd ls" operation doesn't depend on the kernel. What do you mean by >"can't do" - no output at all? > >Something similar was reported here [1]. What's the output of "rados >-p <your rbd pool> stat rbd_directory"? > >> 'rbd mount' does not work with the stock 3.10 kernel, but works with the 4.6 kernel. > >Anything in dmesg on 3.10? > >[1] https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mail-2Darchive.com_ceph-2Dusers-40lists.ceph.com_msg29515.html&d=CwIFaQ&c=lXkdEK1PC7UK9oKA-BBSI8p1AamzLOSncm6Vfn0C_UQ&r=CSYA9OS6Qd7fQySI2LDvlQ&m=kJrwZaeBUVskcdX_AfCixcgqOLQYSWLx-mq-LdVsDt8&s=wbjUPx1PtYZMra-NyGZasBDZZ_T7fXvqidZ11xkSiVY&e= > >Thanks, > > Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com