On 07/16/2013 06:06 PM, Gaylord Holder wrote:
Now whenever I try to map an RBD to a machine, mon0 complains:
feature set mismatch, my 2 < server's 2040002, missing 2040000
missing required protocol features.
Your cluster is using newer crush tunables to get better data
distribution, but your kernel client doesn't support that.
You'll need to upgrade to linux 3.9, or set the tunables
to 'legacy', which your kernel understands [1].
Josh
[1] http://ceph.com/docs/master/rados/operations/crush-map/#tuning-crush
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