according to some slide in https://www.youtube.com/watch?v=gp6if858HUI the support is: > TUNABLE RELEASE CEPH_VERSION KERNEL > CRUSH_TUNABLES argonaut v0.48.1 v3.6 > CRUSH_TUNABLES2 bobtail v0.55 v3.9 > CRUSH_TUNABLES3 firefly v0.78 v3.15 > CRUSH_V4 hammer v0.94 v4.1 > CRUSH_TUNABLES5 Jewel v10.0.2 v4.5 So go to hammer tunables: > ceph osd crush tunables hammer On 07/14/17 11:29, Riccardo Murri wrote: > Hello, > > I am trying to install a test CephFS "Luminous" system on Ubuntu 16.04. > > Everything looks fine, but the `mount.ceph` command fails (error 110, timeout); > kernel logs show a number of messages like these before the `mount` > prog gives up: > > libceph: ... feature set mismatch, my 107b84a842aca < server's > 40107b84a842aca, missing 400000000000000 > > I read in [1] that this is feature > CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING which is only supported in > kernels 4.5 and up -- whereas Ubuntu 16.04 runs Linux 4.4. > > Is there some tunable or configuration file entry that I can set, > which will make Luminous FS mounting work on the std Ubuntu 16.04 > Linux kernel? I.e., is there a way I can avoid upgrading the kernel? > > [1]: http://cephnotes.ksperis.com/blog/2014/01/21/feature-set-mismatch-error-on-ceph-kernel-client > > Thanks, > Riccardo > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- -------------------------------------------- Peter Maloney Brockmann Consult Max-Planck-Str. 2 21502 Geesthacht Germany Tel: +49 4152 889 300 Fax: +49 4152 889 333 E-mail: peter.maloney@xxxxxxxxxxxxxxxxxxxx Internet: http://www.brockmann-consult.de -------------------------------------------- _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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