Alternatively, if you are using RBD format 2 images, you can run "rados -p <your rbd pool> listomapvals rbd_directory" to ensure it has a bunch of key/value pairs for your images. There was an issue noted [1] after upgrading to Jewel where the omap values were all missing on several v2 RBD image headers -- resulting in a failure to open the images. Perhaps it's possible that you are seeing this same problem, but on rbd_directory instead of an individual image. [1] http://tracker.ceph.com/issues/16211 On Mon, Jun 13, 2016 at 5:10 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://www.mail-archive.com/ceph-users@xxxxxxxxxxxxxx/msg29515.html > > Thanks, > > Ilya > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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