thx for your info. My installation was upgraded with "ceph-deploy install --release hammer HOST", and it can't be downgrade with "--release giant" as stated clearly in a warning message in the doc saying "Important Once you upgrade a daemon, you cannot downgrade it.".
I plan to do a clean installation of the old 0.87 version to recover my data, with the old keyring and conf. Any important thing to note for this kind of data recovery work? thx regards, mingfai On Sat, May 23, 2015 at 10:59 AM, Haomai Wang <haomaiw...@gmail.com> wrote: > Experimental feature like keyvaluestore won't support upgrade from 0.87 to > 0.94. > > Sorry > > On Sat, May 23, 2015 at 7:35 AM, Mingfai <mingfai...@gmail.com> wrote: > > hi, > > > > I have a ceph cluster that use keyvaluestore-dev. After upgraded from > v0.87 > > to v0.94.1, and changed the configuration (removed "-dev" suffix and > added > > "enable experimental ..."), OSD is still fail to start, with the > following > > error: > > 7fb8b06ce900 -1 osd.0 0 OSD::init() : unable to read osd superblock > > 7fb8b06ce900 -1 ** ERROR: osd init failed: (22) Invalid argument > > > > any idea if such upgrade is supported? how can I troubleshoot the > problem? > > thx > > > > regards, > > mingfai > > > > > > > > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > -- > Best Regards, > > Wheat >
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