> Op 20 december 2016 om 11:50 schreef Kees Meijs <kees@xxxxxxxx>: > > > Hi Wido, > > Thanks again! Good to hear, it saves us a lot of upgrade trouble in advance. > > If I'm not mistaken, we haven't done anything with CRUSH tunables. Any > pointers on how to make sure we really didn't? > If you didn't touch them nothing happened. You can download the CRUSHMap and check the tunables set on top after decompiling it. See: http://docs.ceph.com/docs/master/rados/operations/crush-map/#tunables Wido > Regards, > Kees > > On 20-12-16 10:14, Wido den Hollander wrote: > > No, you don't. A Hammer/Jewel client can talk to a Hammer/Jewel cluster. One thing, don't change any CRUSH tunables if the cluster runs Jewel and the client is still on Hammer. > > > > The librados/librbd version is what matters. If you upgrade the cluster to Jewel and leave the client on Hammer it works. > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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