On 19/09/14 18:02, Mark Kirkwood wrote: > On 19/09/14 15:11, Aegeaner wrote: >> >> I noticed ceph added key/value store OSD backend feature in firefly, but >> i can hardly get any documentation about how to use it. At last I found >> that i can add a line in ceph.conf: >> >> osd objectstore = keyvaluestore-dev >> >> but got failed with ceph-deploy creating OSDs. According to the log, >> ceph-disk still tried to part a journal partition but failed. >> >> The commands i used are: >> >> ceph-deploy disk zap CVM-0-11:/dev/hioa >> >> ceph-deploy osd prepare CVM-0-11:/dev/hioa >> >> ceph-deploy osd activate CVM-0-11:/dev/hioa1 >> >> Can anyone help me to create a kvstore backend OSD? >> > > Attached script should work (configured to use rocksdb, but just change > to leveldb in the obvious place. It does the whole job assuming you want > a MON and an OSD on the same host, so you may needed to customize it - > or only use the osd part after editing your existing ceph.conf. > > It expects that the OSD_DATAPATH points to a mounted filesystem (i.e > does not make use of ceph-disk). > > Also some assumption of Ubuntu (i.e upstart) is made when it tries to > start the daemons. > ...oh and it removes *everything* under OSD_DATAPATH (so be careful what you set this to...I probably should have a check in there to abort if is any of /, /var, /usr) !
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