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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